“School of Cognitive”
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| Paper IPM / Cognitive / 13966 |
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Attention is a means of flexibly selecting and enhancing a subset of sensory input based on the current
behavioral goals. Numerous signatures of attention have been identified throughout the brain, and now
experimenters are seeking to determine which of these signatures are causally related to the behavioral
benefits of attention, and the source of these modulations within the brain. Here, we review the neural
signatures of attention throughout the brain, their theoretical benefits for visual processing, and their
experimental correlations with behavioral performance. We discuss the importance of measuring cue
benefits as a way to distinguish between impairments on an attention task, which may instead be visual
or motor impairments, and true attentional deficits. We examine evidence for various areas proposed as
sources of attentional modulation within the brain, with a focus on the prefrontal cortex. Lastly, we look
at studies that aim to link sources of attention to its neuronal signatures elsewhere in the brain.
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