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What resolves this contention: Whether transthalamic pathways are quantitatively dominant for cortico-cortical communication or merely one of several routes operating in parallel with direct corticocortical connections. / Layer-5B-driven corticothalamocortical S1→POm→S2 transmission is highly efficacious — the entire S2 response collapses (~89.8%) when thalamus is silenced. / Higher-order thalamic relays (e.g., pulvinar) sit alongside direct corticocortical pathways; whether transthalamic relays are essential vs auxiliary is left open and is to be 'explored'.
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2e5b347ac220 — 5/17/2026, 4:35:28 PM (live)
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2e5b347ac220 — 5/17/2026, 4:35:28 PM (live)
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