Neural Mechanisms of Sustained Attention Are Rhythmic.

ABSTRACT: Classic models of attention suggest that sustained neural firing constitutes a neural correlate of sustained attention. However, recent evidence indicates that behavioral performance fluctuates over time, exhibiting temporal dynamics that closely resemble the spectral features of ongoing, oscillatory brain activity. Therefore, it has been proposed that periodic neuronal excitability fluctuations might shape attentional allocation and overt behavior. However, empirical evidence to support this notion is sparse. Here, we address this issue by examining data from large-scale subdural recordings, using two different attention tasks that track perceptual ability at high temporal resolution. Our results reveal that perceptual outcome varies as a function of the theta phase even in states of sust

SUBMITTER: Helfrich RF 

PROVIDER: S-EPMC6286091 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature