Abstract
This study is the physiological complement to previous behavioral work that demonstrated that rhesus monkeys are able to allocate attention about the surrounding space based on brief, broadband auditory cues. Single-unit recordings were taken from the intermediate layers of the superior colliculus (iSC) while the subjects oriented to visual and auditory targets in the context of a cuing task with their heads unrestrained. The results show a correlation between behavioral manifestations of attention allocation, attention capture and inhibition of return, and modulation of target-evoked responses in single iSC neurons. NEW & NOTEWORTHY These results show for the first time a neural correlate of attention capture and inhibition of return in response to auditory stimuli in the superior colliculus of the head-unrestrained monkey.
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