(@serences.bsky.social)

I gave a talk in 2009 about feature-based attention and a famous vision scientist asked how top down signals from PFC could possibly target the right sensory neurons. The best I could do was "uh, dunno". sunyoungp.bsky.social has a much more thoughtful answer journals.plos.org/ploscompbiol...

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Near-random connections support top-down feature-based attentional modulations in early sensory cortex Author summary In everyday life, we focus on what matters—like finding our car keys on a messy desk—by sending signals from higher control brain areas to earlier sensory brain areas. These “top-down” ... https://journals.plos.org/ploscompbiol/article?id=10.1371/journal.pcbi.1013396