Covert Shift of Attention
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In contrast to overt shifts of attention, in which the eyes or body is directed towards a new focus of attention, covert shifts of attention cannot be directly observed from a second person. Attention is directed from one location to another without overt behavior. Neural systems involved in covert and overt attentional shifts show strong overlap. Brain areas controlling covert shifts of attention include the posterior parietal cortex and frontal eye fields.