Multi-area laminar Neuropixels recordings of mice in a visual oddball task (All…

Multi-area laminar Neuropixels recordings of mice in a visual oddball task (Allen OpenScope) showed γ-band LFP oscillations conveying feedforward prediction errors in lower sensory cortex, α/β-band oscillations weakening in unpredictable conditions, and θ-band oscillations signalling longer-scale temporal prediction errors — favoring a predictive-routing account in oscillation timing rather than ubiquitous spike-rate predictive coding.

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  "doi": "10.1101/2025.07.31.667946",
  "claim": "Multi-area laminar Neuropixels recordings of mice in a visual oddball task (Allen OpenScope) showed γ-band LFP oscillations conveying feedforward prediction errors in lower sensory cortex, α/β-band oscillations weakening in unpredictable conditions, and θ-band oscillations signalling longer-scale temporal prediction errors — favoring a predictive-routing account in oscillation timing rather than ubiquitous spike-rate predictive coding.",
  "cite_key": "Sennesh2025",
  "evidence": "OpenScope laminar Neuropixels + visual oddball; histological lamina labeling; band-specific feedforward/feedback signatures.",
  "effect_size": "band-specific signatures of feedforward (γ), unpredictability (α/β), and longer-scale temporal (θ) prediction-error in mouse visual cortex",
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  "study_system": "Mouse multi-area visual cortex (Allen OpenScope laminar Neuropixels)",
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  "claim_source_sentence": "γ-band local-field potential (LFP) oscillations conveyed feedforward prediction errors in lower sensory areas of cortex; α/β-band oscillations weakened in unpredictable conditions compared to predictable ones; and θ-band oscillations additionally signalled slower, longer-scale temporal prediction errors. In combination with the previous findings, predictive routing explains these experiments where neither ubiquitous predictive coding nor feedforward adaptation can.",
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  "effect_size_source_sentence": "γ-band local-field potential (LFP) oscillations conveyed feedforward prediction errors in lower sensory areas of cortex; α/β-band oscillations weakened in unpredictable conditions compared to predictable ones"
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γ-band local-field potential (LFP) oscillations conveyed feedforward prediction errors in lower sensory areas of cortex; α/β-band oscillations weakened in unpredictable conditions compared to predictable ones; and θ-band oscillations additionally signalled slower, longer-scale temporal prediction errors. In combination with the previous findings, predictive routing explains these experiments where neither ubiquitous...

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15. Methodological limits and emerging tools — what current mouse-cortex tools cannot yet measure about E→E recurrence (subthreshold network activity, fast plasticity in vivo, millimetre-scale dynamic connectomes), and what is on the near horizon

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