Occipital alpha activity during stimulus processing gates the information flow to object-selective cortex.

ABSTRACT: Given the limited processing capabilities of the sensory system, it is essential that attended information is gated to downstream areas, whereas unattended information is blocked. While it has been proposed that alpha band (8-13 Hz) activity serves to route information to downstream regions by inhibiting neuronal processing in task-irrelevant regions, this hypothesis remains untested. Here we investigate how neuronal oscillations detected by electroencephalography in visual areas during working memory encoding serve to gate information reflected in the simultaneously recorded blood-oxygenation-level-dependent (BOLD) signals recorded by functional magnetic resonance imaging in downstream ventral regions. We used a paradigm in which 16 participants were presented with faces and landscapes in

SUBMITTER: Zumer JM 

PROVIDER: S-EPMC4205112 | biostudies-literature | 2014 Oct

REPOSITORIES: biostudies-literature