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Poster Session A: Tuesday, August 12, 1:30 – 4:30 pm, de Brug & E‑Hall

Working memory synchronizes oscillations in visual cortex

Mrugank Dake¹, Clayton E Curtis; ¹New York University

Presenter: Mrugank Dake

Working memory (WM) extends the duration over which representations are available to guide behaviors, and supports a wide range of cognitive functions. Here, we test the hypothesis that WM induces oscillations in the beta band that support stimulus representations that are behaviorally meaningful. Using MEG, we find that oscillations in the beta range over visual cortex a) change in topographic patterns of power during the delay, b) contain item-level information about memoranda, c) synchronize with PFC, and d) predict trial-wise memory behavior. Thus, we conclude that visual WM depends on synchronous oscillations in and between visual and pre-frontal cortex.

Topic Area: Brain Networks & Neural Dynamics

Extended Abstract: Full Text PDF