Brain Region and Layer Context: Beyond Primary Sensory Cortex

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Brain Region and Layer Context: Beyond Primary Sensory Cortex

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  • 1Citationpaper:paper-a15d5b81f78aThe preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference The preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...

  • 2Citationpaper:paper-6cdec9b9ae1dThe preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference The preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...

  • 3Citationpaper:paper-b17714cdf27fThe preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference The preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...

  • 4Citationpaper:paper-0de4997f6140The preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference The preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...

  • 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference Independently replicated: PVBC firing increase during SWRs 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference; PVBC gamma generation 6Citationpaper:paper-8d634a42e871Independently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.

  • 6Citationpaper:paper-8d634a42e871Independently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference Independently replicated: PVBC firing increase during SWRs 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference; PVBC gamma generation 6Citationpaper:paper-8d634a42e871Independently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.

  • 2Citationpaper:paper-6cdec9b9ae1dThe preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference0 The hippocampus contains the most thoroughly characterized diversity of PV+ interneuron subtypes in any brain region. Three principal PV+ cell classes — basket cells (BCs), axo-axonic cells (AACs, also termed chandelier cells), and bistratified cells — coexist within the CA1–CA3 network yet exhibit strikingly distinct connectivity patterns, oscillation coupling, and network-state participation [Somogyi2014temporal,...

  • 2Citationpaper:paper-6cdec9b9ae1dThe preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference1 The hippocampus contains the most thoroughly characterized diversity of PV+ interneuron subtypes in any brain region. Three principal PV+ cell classes — basket cells (BCs), axo-axonic cells (AACs, also termed chandelier cells), and bistratified cells — coexist within the CA1–CA3 network yet exhibit strikingly distinct connectivity patterns, oscillation coupling, and network-state participation [Somogyi2014temporal,...

  • 2Citationpaper:paper-6cdec9b9ae1dThe preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference2 The hippocampus contains the most thoroughly characterized diversity of PV+ interneuron subtypes in any brain region. Three principal PV+ cell classes — basket cells (BCs), axo-axonic cells (AACs, also termed chandelier cells), and bistratified cells — coexist within the CA1–CA3 network yet exhibit strikingly distinct connectivity patterns, oscillation coupling, and network-state participation [Somogyi2014temporal,...

  • 2Citationpaper:paper-6cdec9b9ae1dThe preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference3 Quantitative ultrastructural analysis indicated that hippocampal PV basket cell and AAC terminals differ systematically in their synaptic architecture, with PVBCs forming perisomatic synapses on pyramidal cell bodies and proximal dendrites while AACs target exclusively the axon initial segment 2Citationpaper:paper-6cdec9b9ae1dThe preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference4. In CA3, basket cells exhibit lower action potential threshold, lower input resi...

  • 2Citationpaper:paper-6cdec9b9ae1dThe preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference5 Quantitative ultrastructural analysis indicated that hippocampal PV basket cell and AAC terminals differ systematically in their synaptic architecture, with PVBCs forming perisomatic synapses on pyramidal cell bodies and proximal dendrites while AACs target exclusively the axon initial segment 2Citationpaper:paper-6cdec9b9ae1dThe preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference6. In CA3, basket cells exhibit lower action potential threshold, lower input resi...

  • 2Citationpaper:paper-6cdec9b9ae1dThe preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference7 Quantitative ultrastructural analysis indicated that hippocampal PV basket cell and AAC terminals differ systematically in their synaptic architecture, with PVBCs forming perisomatic synapses on pyramidal cell bodies and proximal dendrites while AACs target exclusively the axon initial segment 2Citationpaper:paper-6cdec9b9ae1dThe preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference8. In CA3, basket cells exhibit lower action potential threshold, lower input resi...

  • 2Citationpaper:paper-6cdec9b9ae1dThe preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference9 The most dramatic illustration of PV+ subtype divergence comes from their behavior during hippocampal network oscillations. In awake mice, PV basket cells and oriens-lacunosum moleculare (OLM) interneurons display a frequency-invariant temporal ordering across theta, gamma, epsilon, and ripple oscillations, with PVBC-derived perisomatic inhibition consistently preceding OLM-generated distal dendritic inhibition [Var...

  • 3Citationpaper:paper-b17714cdf27fThe preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference0 The most dramatic illustration of PV+ subtype divergence comes from their behavior during hippocampal network oscillations. In awake mice, PV basket cells and oriens-lacunosum moleculare (OLM) interneurons display a frequency-invariant temporal ordering across theta, gamma, epsilon, and ripple oscillations, with PVBC-derived perisomatic inhibition consistently preceding OLM-generated distal dendritic inhibition [Var...

  • 3Citationpaper:paper-b17714cdf27fThe preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference1 The most dramatic illustration of PV+ subtype divergence comes from their behavior during hippocampal network oscillations. In awake mice, PV basket cells and oriens-lacunosum moleculare (OLM) interneurons display a frequency-invariant temporal ordering across theta, gamma, epsilon, and ripple oscillations, with PVBC-derived perisomatic inhibition consistently preceding OLM-generated distal dendritic inhibition [Var...

  • 3Citationpaper:paper-b17714cdf27fThe preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference2 The most dramatic illustration of PV+ subtype divergence comes from their behavior during hippocampal network oscillations. In awake mice, PV basket cells and oriens-lacunosum moleculare (OLM) interneurons display a frequency-invariant temporal ordering across theta, gamma, epsilon, and ripple oscillations, with PVBC-derived perisomatic inhibition consistently preceding OLM-generated distal dendritic inhibition [Var...

  • 3Citationpaper:paper-b17714cdf27fThe preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference3 The most dramatic illustration of PV+ subtype divergence comes from their behavior during hippocampal network oscillations. In awake mice, PV basket cells and oriens-lacunosum moleculare (OLM) interneurons display a frequency-invariant temporal ordering across theta, gamma, epsilon, and ripple oscillations, with PVBC-derived perisomatic inhibition consistently preceding OLM-generated distal dendritic inhibition [Var...

  • 3Citationpaper:paper-b17714cdf27fThe preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference4 The most dramatic illustration of PV+ subtype divergence comes from their behavior during hippocampal network oscillations. In awake mice, PV basket cells and oriens-lacunosum moleculare (OLM) interneurons display a frequency-invariant temporal ordering across theta, gamma, epsilon, and ripple oscillations, with PVBC-derived perisomatic inhibition consistently preceding OLM-generated distal dendritic inhibition [Var...

  • 3Citationpaper:paper-b17714cdf27fThe preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference5 PV+ subtype firing modulation during hippocampal sharp-wave ripples. (A) In vivo recordings from wild-type mouse CA1 showing that PV basket cells strongly increase firing during SWRs while axo-axonic cells are inhibited and bistratified cells show moderate increases. Relative direction of modulation is shown; absolute firing rates differ across studies. (B) Ex vivo hippocampal slice recordings from the 5xFAD...

  • 3Citationpaper:paper-b17714cdf27fThe preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference6 PV+ subtype firing modulation during hippocampal sharp-wave ripples. (A) In vivo recordings from wild-type mouse CA1 showing that PV basket cells strongly increase firing during SWRs while axo-axonic cells are inhibited and bistratified cells show moderate increases. Relative direction of modulation is shown; absolute firing rates differ across studies. (B) Ex vivo hippocampal slice recordings from the 5xFAD...

  • 3Citationpaper:paper-b17714cdf27fThe preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference7 PV+ subtype firing modulation during hippocampal sharp-wave ripples. (A) In vivo recordings from wild-type mouse CA1 showing that PV basket cells strongly increase firing during SWRs while axo-axonic cells are inhibited and bistratified cells show moderate increases. Relative direction of modulation is shown; absolute firing rates differ across studies. (B) Ex vivo hippocampal slice recordings from the 5xFAD...

  • 3Citationpaper:paper-b17714cdf27fThe preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference8 In wild-type hippocampus, PV basket cells are among the most vigorously active interneurons during sharp-wave ripples 3Citationpaper:paper-b17714cdf27fThe preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference9. Yet in the 5xFAD Alzheimer’s model, 4Citationpaper:paper-0de4997f6140The preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference0 reported a 46% spike rate reduction in PVBCs during SWRs, with excitatory synaptic drive to PVBCs selectively reduced while bistratified and axo-axonic cells were unimpaired. This subtype-specific...

  • 4Citationpaper:paper-0de4997f6140The preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference1 In wild-type hippocampus, PV basket cells are among the most vigorously active interneurons during sharp-wave ripples 4Citationpaper:paper-0de4997f6140The preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference2. Yet in the 5xFAD Alzheimer’s model, 4Citationpaper:paper-0de4997f6140The preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference3 reported a 46% spike rate reduction in PVBCs during SWRs, with excitatory synaptic drive to PVBCs selectively reduced while bistratified and axo-axonic cells were unimpaired. This subtype-specific...

  • 4Citationpaper:paper-0de4997f6140The preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference4 In wild-type hippocampus, PV basket cells are among the most vigorously active interneurons during sharp-wave ripples 4Citationpaper:paper-0de4997f6140The preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference5. Yet in the 5xFAD Alzheimer’s model, 4Citationpaper:paper-0de4997f6140The preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference6 reported a 46% spike rate reduction in PVBCs during SWRs, with excitatory synaptic drive to PVBCs selectively reduced while bistratified and axo-axonic cells were unimpaired. This subtype-specific...

  • 4Citationpaper:paper-0de4997f6140The preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference7 This subtype-specific vulnerability has implications for understanding hippocampal dysfunction more broadly. In the hippocampal epilepsy context, the three perisomatic interneuron types — axo-axonic cells, PV basket cells, and CCK basket cells — each follow unique activity patterns, suggesting distinctive and non-redundant roles in both healthy and pathological network dynamics 4Citationpaper:paper-0de4997f6140The preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference8. Disruption of hippo...

  • 4Citationpaper:paper-0de4997f6140The preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...content/09_brain_region_context.md:line 4Open reference9 This subtype-specific vulnerability has implications for understanding hippocampal dysfunction more broadly. In the hippocampal epilepsy context, the three perisomatic interneuron types — axo-axonic cells, PV basket cells, and CCK basket cells — each follow unique activity patterns, suggesting distinctive and non-redundant roles in both healthy and pathological network dynamics 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference0. Disruption of hippo...

  • 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference1 This subtype-specific vulnerability has implications for understanding hippocampal dysfunction more broadly. In the hippocampal epilepsy context, the three perisomatic interneuron types — axo-axonic cells, PV basket cells, and CCK basket cells — each follow unique activity patterns, suggesting distinctive and non-redundant roles in both healthy and pathological network dynamics 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference2. Disruption of hippo...

  • 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference3 This subtype-specific vulnerability has implications for understanding hippocampal dysfunction more broadly. In the hippocampal epilepsy context, the three perisomatic interneuron types — axo-axonic cells, PV basket cells, and CCK basket cells — each follow unique activity patterns, suggesting distinctive and non-redundant roles in both healthy and pathological network dynamics 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference4. Disruption of hippo...

  • 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference5 Layer-specific GABAergic circuits within the hippocampus add further complexity. Distinct gamma oscillations in CA1 are controlled by layer-specific GABAergic circuits, with perisomatic PV basket cells driving fast gamma while dendritic-targeting interneurons contribute to slow gamma 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference6. This laminar organization of inhibition mirrors the layer-specific logic observed in neocortex ({ref}`sec-brain-...

  • 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference7 Layer-specific GABAergic circuits within the hippocampus add further complexity. Distinct gamma oscillations in CA1 are controlled by layer-specific GABAergic circuits, with perisomatic PV basket cells driving fast gamma while dendritic-targeting interneurons contribute to slow gamma 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference8. This laminar organization of inhibition mirrors the layer-specific logic observed in neocortex ({ref}`sec-brain-...

  • 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference9 Layer-specific GABAergic circuits within the hippocampus add further complexity. Distinct gamma oscillations in CA1 are controlled by layer-specific GABAergic circuits, with perisomatic PV basket cells driving fast gamma while dendritic-targeting interneurons contribute to slow gamma 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference0. This laminar organization of inhibition mirrors the layer-specific logic observed in neocortex ({ref}`sec-brain-...

  • 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference1 Layer-specific GABAergic circuits within the hippocampus add further complexity. Distinct gamma oscillations in CA1 are controlled by layer-specific GABAergic circuits, with perisomatic PV basket cells driving fast gamma while dendritic-targeting interneurons contribute to slow gamma 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference2. This laminar organization of inhibition mirrors the layer-specific logic observed in neocortex ({ref}`sec-brain-...

  • 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference3 If the hippocampus illustrates PV+ subtype diversity within a single region, the prefrontal cortex (PFC) illustrates how a shared PV identity is co-opted for a fundamentally different computational demand: the sustained maintenance and flexible updating of working memory representations. PFC PV-INs contribute to attention, working memory, and adaptive behavior through mechanisms that are both analogous to and distin...

  • 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference4 If the hippocampus illustrates PV+ subtype diversity within a single region, the prefrontal cortex (PFC) illustrates how a shared PV identity is co-opted for a fundamentally different computational demand: the sustained maintenance and flexible updating of working memory representations. PFC PV-INs contribute to attention, working memory, and adaptive behavior through mechanisms that are both analogous to and distin...

  • 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference5 If the hippocampus illustrates PV+ subtype diversity within a single region, the prefrontal cortex (PFC) illustrates how a shared PV identity is co-opted for a fundamentally different computational demand: the sustained maintenance and flexible updating of working memory representations. PFC PV-INs contribute to attention, working memory, and adaptive behavior through mechanisms that are both analogous to and distin...

  • 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference6 Post-training activation of PFC PV-INs is necessary for recruitment of nucleus reuniens and nucleus accumbens-projecting sub-engrams during systems consolidation of contextual fear memory, placing PV cells at a critical node in the distributed memory consolidation network 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference7. This finding suggests that PFC PV-INs may function not merely as local circuit modulators but as gatekeepers of long-ran...

  • 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference8 Post-training activation of PFC PV-INs is necessary for recruitment of nucleus reuniens and nucleus accumbens-projecting sub-engrams during systems consolidation of contextual fear memory, placing PV cells at a critical node in the distributed memory consolidation network 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference9. This finding suggests that PFC PV-INs may function not merely as local circuit modulators but as gatekeepers of long-ran...

  • 6Citationpaper:paper-8d634a42e871Independently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference0 Post-training activation of PFC PV-INs is necessary for recruitment of nucleus reuniens and nucleus accumbens-projecting sub-engrams during systems consolidation of contextual fear memory, placing PV cells at a critical node in the distributed memory consolidation network 6Citationpaper:paper-8d634a42e871Independently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference1. This finding suggests that PFC PV-INs may function not merely as local circuit modulators but as gatekeepers of long-ran...

  • 6Citationpaper:paper-8d634a42e871Independently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference2 Whether PV-IN dysfunction alone is sufficient to produce working memory deficits remains contested. 6Citationpaper:paper-8d634a42e871Independently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference3 reported that PV-IN activation actively drives memory consolidation circuits, implying a causal and sufficient role. Conversely, 6Citationpaper:paper-8d634a42e871Independently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference4 found that sub-chronic ketamine during adolescence irreversibly impairs excitatory synapse formation onto PV neurons in mPFC, causing persisten...

  • 6Citationpaper:paper-8d634a42e871Independently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference5 Whether PV-IN dysfunction alone is sufficient to produce working memory deficits remains contested. 6Citationpaper:paper-8d634a42e871Independently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference6 reported that PV-IN activation actively drives memory consolidation circuits, implying a causal and sufficient role. Conversely, 6Citationpaper:paper-8d634a42e871Independently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference7 found that sub-chronic ketamine during adolescence irreversibly impairs excitatory synapse formation onto PV neurons in mPFC, causing persisten...

  • 6Citationpaper:paper-8d634a42e871Independently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference8 The pharmacological vulnerability of prefrontal PV-INs has been extensively characterized across multiple perturbation paradigms. Repeated methamphetamine administration produces cognitive deficits through augmentation of GABAergic synaptic transmission in PFC, directly implicating PV-mediated inhibition in stimulant-induced cognitive dysfunction 6Citationpaper:paper-8d634a42e871Independently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference9. Conversely, pharmacogenetic activation...

  • 6Citationpaper:paper-8d634a42e871Independently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference0 The pharmacological vulnerability of prefrontal PV-INs has been extensively characterized across multiple perturbation paradigms. Repeated methamphetamine administration produces cognitive deficits through augmentation of GABAergic synaptic transmission in PFC, directly implicating PV-mediated inhibition in stimulant-induced cognitive dysfunction 6Citationpaper:paper-8d634a42e871Independently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference1. Conversely, pharmacogenetic activation...

  • 6Citationpaper:paper-8d634a42e871Independently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference2 The pharmacological vulnerability of prefrontal PV-INs has been extensively characterized across multiple perturbation paradigms. Repeated methamphetamine administration produces cognitive deficits through augmentation of GABAergic synaptic transmission in PFC, directly implicating PV-mediated inhibition in stimulant-induced cognitive dysfunction 6Citationpaper:paper-8d634a42e871Independently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference3. Conversely, pharmacogenetic activation...

  • 6Citationpaper:paper-8d634a42e871Independently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference4 The pharmacological vulnerability of prefrontal PV-INs has been extensively characterized across multiple perturbation paradigms. Repeated methamphetamine administration produces cognitive deficits through augmentation of GABAergic synaptic transmission in PFC, directly implicating PV-mediated inhibition in stimulant-induced cognitive dysfunction 6Citationpaper:paper-8d634a42e871Independently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference5. Conversely, pharmacogenetic activation...

  • 6Citationpaper:paper-8d634a42e871Independently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference6 The pharmacological vulnerability of prefrontal PV-INs has been extensively characterized across multiple perturbation paradigms. Repeated methamphetamine administration produces cognitive deficits through augmentation of GABAergic synaptic transmission in PFC, directly implicating PV-mediated inhibition in stimulant-induced cognitive dysfunction 6Citationpaper:paper-8d634a42e871Independently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference7. Conversely, pharmacogenetic activation...

  • 6Citationpaper:paper-8d634a42e871Independently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference8 Neuromodulatory inputs to PFC PV cells add further nuance. In primate dorsolateral PFC (dlPFC), beta1-adrenoceptors are expressed on PV-INs, with beta1-AR agonism producing mixed effects on fast-spiking neuron firing during working memory and beta1-AR antagonism preventing stress-induced cognitive impairment 6Citationpaper:paper-8d634a42e871Independently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference9. This adrenergic regulation, observed in a primate system, highlights the danger of e...

  • 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference0 Neuromodulatory inputs to PFC PV cells add further nuance. In primate dorsolateral PFC (dlPFC), beta1-adrenoceptors are expressed on PV-INs, with beta1-AR agonism producing mixed effects on fast-spiking neuron firing during working memory and beta1-AR antagonism preventing stress-induced cognitive impairment 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference1. This adrenergic regulation, observed in a primate system, highlights the danger of e...

  • 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference2 Neuromodulatory inputs to PFC PV cells add further nuance. In primate dorsolateral PFC (dlPFC), beta1-adrenoceptors are expressed on PV-INs, with beta1-AR agonism producing mixed effects on fast-spiking neuron firing during working memory and beta1-AR antagonism preventing stress-induced cognitive impairment 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference3. This adrenergic regulation, observed in a primate system, highlights the danger of e...

  • 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference4 The thalamic reticular nucleus (TRN) is an inhibitory shell surrounding the dorsal thalamus where PV+ neurons constitute a major cell population that gates thalamocortical information flow. TRN neurons provide cell-type-specific modulation of somatosensory processing in the thalamocortical circuit 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference5, while both SOM-positive and PV+ neurons in the TRN project to the dorsal lateral geniculate...

  • 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference6 The thalamic reticular nucleus (TRN) is an inhibitory shell surrounding the dorsal thalamus where PV+ neurons constitute a major cell population that gates thalamocortical information flow. TRN neurons provide cell-type-specific modulation of somatosensory processing in the thalamocortical circuit 5Citationpaper:paper-12b8963c5eeaIndependently replicated: PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. Single-study or replication unknown: all other hippocampal findings in this subsection. Readers should weight accordingly.content/09_brain_region_context.md:line 10Open reference7, while both SOM-positive and PV+ neurons in the TRN project to the dorsal lateral geniculate...

  • ... 56 additional anchors in refs_json

References

  1. [Caroni2015inhibitory] paper:paper-a15d5b81f78a “The preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...”
  2. [Tricoire2011blueprint] paper:paper-6cdec9b9ae1d “The preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...”
  3. [Boroujeni2026prefrontal] paper:paper-b17714cdf27f “The preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...”
  4. [Bienvenu2012cell] paper:paper-0de4997f6140 “The preceding sections established parvalbumin-expressing (PV+) interneuron properties — fast-spiking (FS) electrophysiology, perisomatic targeting, and in vivo tuning dynamics — largely through the lens of primary sensory cortices. Yet the majority of PV+ interneurons (PV-INs) reside outside V1 and barrel cortex, populating hippocampal, prefrontal, subcortical, and limbic circuits where they serve fundamentally dif...”
  5. [Somogyi2014temporal] paper:paper-12b8963c5eea “**Independently replicated:** PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. **Single-study or replication unknown:** all other hippocampal findings in this subsection. Readers should weight accordingly.”
  6. [Gulyas2010parvalbumin] paper:paper-8d634a42e871 “**Independently replicated:** PVBC firing increase during SWRs [Somogyi2014temporal]; PVBC gamma generation [Gulyas2010parvalbumin]. **Single-study or replication unknown:** all other hippocampal findings in this subsection. Readers should weight accordingly.”
  7. [Varga2012frequency] paper:paper-200e9cbf484c “The hippocampus contains the most thoroughly characterized diversity of PV+ interneuron subtypes in any brain region. Three principal PV+ cell classes — basket cells (BCs), axo-axonic cells (AACs, also termed chandelier cells), and bistratified cells — coexist within the CA1–CA3 network yet exhibit strikingly distinct connectivity patterns, oscillation coupling, and network-state participation [Somogyi2014temporal,...”
  8. [Takacs2015quantitative] paper:paper-ccb70d1527c0 “Quantitative ultrastructural analysis indicated that hippocampal PV basket cell and AAC terminals differ systematically in their synaptic architecture, with PVBCs forming perisomatic synapses on pyramidal cell bodies and proximal dendrites while AACs target exclusively the axon initial segment [Takacs2015quantitative, Papp2013different]. In CA3, basket cells exhibit lower action potential threshold, lower input resi...”
  9. [Papp2013different] paper:paper-350888380937 “Quantitative ultrastructural analysis indicated that hippocampal PV basket cell and AAC terminals differ systematically in their synaptic architecture, with PVBCs forming perisomatic synapses on pyramidal cell bodies and proximal dendrites while AACs target exclusively the axon initial segment [Takacs2015quantitative, Papp2013different]. In CA3, basket cells exhibit lower action potential threshold, lower input resi...”
  10. [Caccavano2020inhibitory] paper:paper-54726517a4fb “PV+ subtype firing modulation during hippocampal sharp-wave ripples. **(A)** In vivo recordings from wild-type mouse CA1 showing that PV basket cells strongly increase firing during SWRs while axo-axonic cells are inhibited and bistratified cells show moderate increases. Relative direction of modulation is shown; absolute firing rates differ across studies. **(B)** Ex vivo hippocampal slice recordings from the 5xFAD...”
  11. [Dudok2022toward] paper:paper-a0575b789aa7 “This subtype-specific vulnerability has implications for understanding hippocampal dysfunction more broadly. In the hippocampal epilepsy context, the three perisomatic interneuron types — axo-axonic cells, PV basket cells, and CCK basket cells — each follow unique activity patterns, suggesting distinctive and non-redundant roles in both healthy and pathological network dynamics [Dudok2022toward]. Disruption of hippo...”
  12. [LeBail2025ccp] paper:paper-73847202bd7a “This subtype-specific vulnerability has implications for understanding hippocampal dysfunction more broadly. In the hippocampal epilepsy context, the three perisomatic interneuron types — axo-axonic cells, PV basket cells, and CCK basket cells — each follow unique activity patterns, suggesting distinctive and non-redundant roles in both healthy and pathological network dynamics [Dudok2022toward]. Disruption of hippo...”
  13. [Paterno2021hippocampal] paper:paper-78f33d23c109 “This subtype-specific vulnerability has implications for understanding hippocampal dysfunction more broadly. In the hippocampal epilepsy context, the three perisomatic interneuron types — axo-axonic cells, PV basket cells, and CCK basket cells — each follow unique activity patterns, suggesting distinctive and non-redundant roles in both healthy and pathological network dynamics [Dudok2022toward]. Disruption of hippo...”
  14. [Wang2024multiscale] paper:paper-8555941163c8 “This subtype-specific vulnerability has implications for understanding hippocampal dysfunction more broadly. In the hippocampal epilepsy context, the three perisomatic interneuron types — axo-axonic cells, PV basket cells, and CCK basket cells — each follow unique activity patterns, suggesting distinctive and non-redundant roles in both healthy and pathological network dynamics [Dudok2022toward]. Disruption of hippo...”
  15. [Lasztoczi2014layer] paper:paper-059d84493087 “Layer-specific GABAergic circuits within the hippocampus add further complexity. Distinct gamma oscillations in CA1 are controlled by layer-specific GABAergic circuits, with perisomatic PV basket cells driving fast gamma while dendritic-targeting interneurons contribute to slow gamma [Lasztoczi2014layer]. This laminar organization of inhibition mirrors the layer-specific logic observed in neocortex ({ref}`sec-brain-...”
  16. [Korotkova2010nmda] paper:paper-c51a85129bee “Layer-specific GABAergic circuits within the hippocampus add further complexity. Distinct gamma oscillations in CA1 are controlled by layer-specific GABAergic circuits, with perisomatic PV basket cells driving fast gamma while dendritic-targeting interneurons contribute to slow gamma [Lasztoczi2014layer]. This laminar organization of inhibition mirrors the layer-specific logic observed in neocortex ({ref}`sec-brain-...”
  17. [Lau2017long] paper:paper-abfaf93df206 “Layer-specific GABAergic circuits within the hippocampus add further complexity. Distinct gamma oscillations in CA1 are controlled by layer-specific GABAergic circuits, with perisomatic PV basket cells driving fast gamma while dendritic-targeting interneurons contribute to slow gamma [Lasztoczi2014layer]. This laminar organization of inhibition mirrors the layer-specific logic observed in neocortex ({ref}`sec-brain-...”
  18. [Lin2025evidence] paper:paper-aaa9b78f6a75 “If the hippocampus illustrates PV+ subtype diversity within a single region, the prefrontal cortex (PFC) illustrates how a shared PV identity is co-opted for a fundamentally different computational demand: the sustained maintenance and flexible updating of working memory representations. PFC PV-INs contribute to attention, working memory, and adaptive behavior through mechanisms that are both analogous to and distin...”
  19. [Cernousova2025role] paper:paper-25b98f7ca5fe “If the hippocampus illustrates PV+ subtype diversity within a single region, the prefrontal cortex (PFC) illustrates how a shared PV identity is co-opted for a fundamentally different computational demand: the sustained maintenance and flexible updating of working memory representations. PFC PV-INs contribute to attention, working memory, and adaptive behavior through mechanisms that are both analogous to and distin...”
  20. [Golbabaei2026dependent] paper:paper-a062c50f7eb6 “Post-training activation of PFC PV-INs is necessary for recruitment of nucleus reuniens and nucleus accumbens-projecting sub-engrams during systems consolidation of contextual fear memory, placing PV cells at a critical node in the distributed memory consolidation network [Golbabaei2026dependent]. This finding suggests that PFC PV-INs may function not merely as local circuit modulators but as gatekeepers of long-ran...”
  21. [Ohta2025effects] paper:paper-51eb9c104f22 “Post-training activation of PFC PV-INs is necessary for recruitment of nucleus reuniens and nucleus accumbens-projecting sub-engrams during systems consolidation of contextual fear memory, placing PV cells at a critical node in the distributed memory consolidation network [Golbabaei2026dependent]. This finding suggests that PFC PV-INs may function not merely as local circuit modulators but as gatekeepers of long-ran...”
  22. [Song2025layer] paper:paper-02e1edcfcc55 “Post-training activation of PFC PV-INs is necessary for recruitment of nucleus reuniens and nucleus accumbens-projecting sub-engrams during systems consolidation of contextual fear memory, placing PV cells at a critical node in the distributed memory consolidation network [Golbabaei2026dependent]. This finding suggests that PFC PV-INs may function not merely as local circuit modulators but as gatekeepers of long-ran...”
  23. [Zhang2024adolescent] paper:paper-c524f81c385d “Whether PV-IN dysfunction alone is sufficient to produce working memory deficits remains contested. [Golbabaei2026dependent] reported that PV-IN activation actively drives memory consolidation circuits, implying a causal and sufficient role. Conversely, [Zhang2024adolescent] found that sub-chronic ketamine during adolescence irreversibly impairs excitatory synapse formation onto PV neurons in mPFC, causing persisten...”
  24. [ArmentaResendiz2022repeated] paper:paper-e58d322b4f63 “The pharmacological vulnerability of prefrontal PV-INs has been extensively characterized across multiple perturbation paradigms. Repeated methamphetamine administration produces cognitive deficits through augmentation of GABAergic synaptic transmission in PFC, directly implicating PV-mediated inhibition in stimulant-induced cognitive dysfunction [ArmentaResendiz2022repeated]. Conversely, pharmacogenetic activation...”
  25. [Chamberlin2023pharmacogenetic] paper:paper-bb76ff4f3606 “The pharmacological vulnerability of prefrontal PV-INs has been extensively characterized across multiple perturbation paradigms. Repeated methamphetamine administration produces cognitive deficits through augmentation of GABAergic synaptic transmission in PFC, directly implicating PV-mediated inhibition in stimulant-induced cognitive dysfunction [ArmentaResendiz2022repeated]. Conversely, pharmacogenetic activation...”
  26. [Arime2024activation] paper:paper-2de570d6945f “The pharmacological vulnerability of prefrontal PV-INs has been extensively characterized across multiple perturbation paradigms. Repeated methamphetamine administration produces cognitive deficits through augmentation of GABAergic synaptic transmission in PFC, directly implicating PV-mediated inhibition in stimulant-induced cognitive dysfunction [ArmentaResendiz2022repeated]. Conversely, pharmacogenetic activation...”
  27. [Shu2022targeting] paper:paper-994da9d38410 “The pharmacological vulnerability of prefrontal PV-INs has been extensively characterized across multiple perturbation paradigms. Repeated methamphetamine administration produces cognitive deficits through augmentation of GABAergic synaptic transmission in PFC, directly implicating PV-mediated inhibition in stimulant-induced cognitive dysfunction [ArmentaResendiz2022repeated]. Conversely, pharmacogenetic activation...”
  28. [Joyce2024adrenoceptor] paper:paper-fff3aaa31d0b “Neuromodulatory inputs to PFC PV cells add further nuance. In primate dorsolateral PFC (dlPFC), beta1-adrenoceptors are expressed on PV-INs, with beta1-AR agonism producing mixed effects on fast-spiking neuron firing during working memory and beta1-AR antagonism preventing stress-induced cognitive impairment [Joyce2024adrenoceptor]. This adrenergic regulation, observed in a primate system, highlights the danger of e...”
  29. [Bauminger2025chemogenetic] paper:paper-16991549dc32 “Neuromodulatory inputs to PFC PV cells add further nuance. In primate dorsolateral PFC (dlPFC), beta1-adrenoceptors are expressed on PV-INs, with beta1-AR agonism producing mixed effects on fast-spiking neuron firing during working memory and beta1-AR antagonism preventing stress-induced cognitive impairment [Joyce2024adrenoceptor]. This adrenergic regulation, observed in a primate system, highlights the danger of e...”
  30. [RolonMartinez2026thalamic] paper:paper-a51b37835b8f “The thalamic reticular nucleus (TRN) is an inhibitory shell surrounding the dorsal thalamus where PV+ neurons constitute a major cell population that gates thalamocortical information flow. TRN neurons provide cell-type-specific modulation of somatosensory processing in the thalamocortical circuit [RolonMartinez2026thalamic], while both SOM-positive and PV+ neurons in the TRN project to the dorsal lateral geniculate...”
  31. [Bu2025parvalbumin] paper:paper-7b2fd50083cd “The thalamic reticular nucleus (TRN) is an inhibitory shell surrounding the dorsal thalamus where PV+ neurons constitute a major cell population that gates thalamocortical information flow. TRN neurons provide cell-type-specific modulation of somatosensory processing in the thalamocortical circuit [RolonMartinez2026thalamic], while both SOM-positive and PV+ neurons in the TRN project to the dorsal lateral geniculate...”

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