Neural Dynamics of Cognitive Control
Princeton
Abstract
Cognitive control guides behavior by controlling what, where, and how information is represented in the brain. Perhaps the most well-studied form of cognitive control has been ‘attention’, which controls how external sensory stimuli are represented in the brain. In contrast, the neural mechanisms controlling the selection of representations held ‘in mind’, in working memory, are unknown. In this talk, I will present evidence that the prefrontal cortex controls working memory by selectively enhancing and transforming the contents of working memory. In particular, I will show how the neural representation of the content of working memory changes over time, moving between different ‘subspaces’ of the neural population. These dynamics may play a critical role in controlling what and how neural representations are acted upon.
Topics
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