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- Live5/17/2026, 4:35:28 PM
37db3ad3487bContent snapshot
{ "field_tag": "excitatory-recurrence", "text": "What resolves this contention: Sign of the net L4→L5 effect in vivo (suppression via translaminar inhibition vs. expectation of net excitation from monosynaptic E→E paired-recording data); methodology and behavioral state differ. / In awake mouse S1, optogenetic activation of L4 directly SUPPRESSES L5 firing via deep fast-spiking inhibition, sharpening L5 spatial representations — at odds with a purely excitatory L4→L5 feedforward path. / In mouse C2 barrel column paired recordings, L4 excitatory neurons provide the strongest excitatory influence on the column, including direct E→E input to L5 — supporting a primarily excitatory L4-driven feedforward microcircuit.", "source_refs": [ "paper:paper-bd34abdc91c9", "paper:paper-bdc020492b80", "wiki_page:computationalreviewrecurrence-04-translaminar", "paper:paper-bd34abdc91c9", "paper:paper-bdc020492b80", "wiki_page:computationalreviewrecurrence-04-translaminar", "paper:paper-bd34abdc91c9", "paper:paper-bdc020492b80", "wiki_page:computationalreviewrecurrence-04-translaminar" ], "importance": "0.7200", "tractability": "0.5500", "potential_impact": "0.7000", "composite_score": "0.2772", "elo_rating": "1500.00", "state": "open", "decay_rate": "0.01000", "resolution_evidence_refs": [] }