O-LM vs Bistratified Cell Activity During Hippocampal Network Oscillations

O-LM and bistratified cells, despite both being SST+, show opposite modulation during sharp-wave ripples and distinct theta phase preferences. This demonstrates that treating SST interneurons as a monolithic class obscures functionally critical differences.

{
  "papers": [
    {
      "doi": "10.1126/science.1149381",
      "value": "O-LM: suppressed during SWRs; Bistratified: strongly active during SWRs",
      "method": "juxtacellular recording in vivo",
      "metric": "SWR activity modulation",
      "cite_key": "Klausberger2008",
      "condition": "anesthetized and awake",
      "study_system": "rat",
      "value_source_sentence": "Neuronal diversity and temporal dynamics: the unity of hippocampal circuit operations."
    },
    {
      "doi": "10.1016/j.neuron.2014.04.007",
      "value": "O-LM: active during sleep/immobility; Bistratified: active during movement",
      "method": "juxtacellular recording in vivo",
      "metric": "Behavioral state dependence",
      "cite_key": "Katona2014",
      "condition": "freely moving",
      "study_system": "rat",
      "value_source_sentence": "Sleep and movement differentiates actions of two types of somatostatin-expressing GABAergic interneurons in the hippocampus."
    },
    {
      "doi": "10.1098/rstb.2012.0518",
      "value": "Dendritic inhibition (SST): decreases during ripples; Perisomatic inhibition (PV): increases",
      "method": "in vivo recording",
      "metric": "Inhibition redistribution during SWR",
      "cite_key": "Somogyi2014",
      "condition": "theta to SWR transition",
      "study_system": "rat",
      "value_source_sentence": "Temporal redistribution of inhibition over neuronal subcellular domains underlies state-dependent rhythmic change of excitability in the hippocampus."
    },
    {
      "doi": "10.1523/jneurosci.1397-09.2009",
      "value": "Dendrite-targeting: fire at theta trough; Basket cells: fire at theta peak",
      "method": "juxtacellular recording in vivo",
      "metric": "Theta phase preference",
      "cite_key": "Hartwich2009",
      "condition": "theta oscillations",
      "study_system": "rat",
      "value_source_sentence": "Distinct Firing Patterns of Identified Basket and Dendrite-Targeting Interneurons in the Hippocampus during Theta and Sharp Wave/Ripple Oscillations."
    }
  ],
  "comparison_id": "olm-vs-bistratified-oscillation-coupling",
  "comparison_name": "O-LM vs Bistratified Cell Activity During Hippocampal Network Oscillations",
  "comparison_type": "cross-study conflict",
  "what_it_reveals": "O-LM and bistratified cells, despite both being SST+, show opposite modulation during sharp-wave ripples and distinct theta phase preferences. This demonstrates that treating SST interneurons as a monolithic class obscures functionally critical differences.",
  "homogeneity_check": {
    "caveats": "All studies in rat CA1 with juxtacellular recording, but some in anesthetized vs freely moving preparations. Behavioral state is a key variable that affects all measurements.",
    "comparable": true,
    "n_definition": "individual identified neurons",
    "scope_region": "CA1",
    "taxonomic_level": "cell-type specific",
    "scope_population": "identified interneurons"
  },
  "suggested_plot_type": "grouped bar"
}

[
  "paper:paper-12b8963c5eea",
  "paper:paper-2c384933256d",
  "paper:paper-4b96bf417ed1",
  "paper:paper-f5e82131eb03"
]

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  "notes": [
    "Local review repositories are read-only inputs.",
    "SciDEX stores paper metadata, structured evidence, file pointers, and short citation contexts; it does not copy full review prose."
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  "source_commit_sha": "89b7e9787cd90e942b0adb531d549af3ddad30f1",
  "source_repository_url": "https://github.com/AllenNeuralDynamics/ComputationalReviewSST"
}