Local and interareal alpha and low-beta band oscillation dynamics underlie the bilateral field advantage in visual working memory.

ABSTRACT: Visual working memory has a limited maximum capacity, which can be larger if stimuli are presented bilaterally vs. unilaterally. However, the neuronal mechanisms underlying this bilateral field advantage are not known. Visual working memory capacity is predicted by oscillatory delay-period activity, specifically, by a decrease in alpha (8 to 12 Hz) band amplitudes in posterior brain regions reflecting attentional deployment and related shifts in excitation, as well as a concurrent increase of prefrontal oscillation amplitudes and interareal synchronization in multiple frequencies reflecting active maintenance of information. Here, we asked whether posterior alpha suppression or prefrontal oscillation enhancement explains the bilateral field advantage. We recorded brain activity with high-d

SUBMITTER: Sattelberger J 

PROVIDER: S-EPMC11561930 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature