Selection of Visual Objects in Perception and Working Memory One at a Time.

ABSTRACT: How does the content of visual working memory influence the way we process the visual environment? We addressed this question using the steady-state visual evoked potential (SSVEP), which provides a discernible measure of visuocortical activation to multiple stimuli simultaneously. Fifty-six adults were asked to remember a set of two oriented gratings. During the retention interval, two frequency-tagged oriented gratings were presented to probe the visuocortical processing of matching versus mismatching orientations relative to the memory set. Matching probes prompted an increased visuocortical response, whereas mismatching stimuli were suppressed. This suggests that the visual cortex prioritizes attentional selection of memory-relevant features at the expense of non-memory-relevant featur

SUBMITTER: Thigpen N 

PROVIDER: S-EPMC6794657 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature