Attention to visual motion suppresses neuronal and behavioral sensitivity in nearby feature space.

ABSTRACT:

Background

Feature-based attention prioritizes the processing of the attended feature while strongly suppressing the processing of nearby ones. This creates a non-linearity or "attentional suppressive surround" predicted by the Selective Tuning model of visual attention. However, previously reported effects of feature-based attention on neuronal responses are linear, e.g., feature-similarity gain. Here, we investigated this apparent contradiction by neurophysiological and psychophysical approaches.

Results

Responses of motion direction-selective neurons in area MT/MST of monkeys were recorded during a motion task. When attention was allocated to a stimulus moving in the neurons' preferred direction, response tuning curves showed its minimum for directions 60-90° away from th

SUBMITTER: Yoo SA 

PROVIDER: S-EPMC9535987 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature