When size matters: attention affects performance by contrast or response gain

Abstract

Covert attention, the selective processing of visual information in the absence of eye movements, improves behavioral performance. We found that attention, both exogenous (involuntary) and endogenous (voluntary), can affect performance by contrast or response gain changes, depending on the stimulus size and the relative size of the attention field. These… (More)
DOI: 10.1038/nn.2669

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