Journal
ANNUAL REVIEW OF VISION SCIENCE, VOL 4
Volume 4, Issue -, Pages 311-336Publisher
ANNUAL REVIEWS
DOI: 10.1146/annurev-vision-091517-033954
Keywords
action; attention; cognition; task-driven processing; visual representation; visual working memory
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Visual information processing contains two opposite needs. There is both a need to comprehend the richness of the visual world and a need to extract only pertinent visual information to guide thoughts and behavior at a given moment. I argue that these two aspects of visual processing are mediated by two complementary visual systems in the primate brain-specifically, the occipitotemporal cortex (OTC) and the posterior parietal cortex (PPC). The role of OTC in visual processing has been documented extensively by decades of neuroscience research. I review here recent evidence from human imaging and monkey neurophysiology studies to highlight the role of PPC in adaptive visual processing. I first document the diverse array of visual representations found in PPC. I then describe the adaptive nature of visual representation in PPC by contrasting visual processing in OTC and PPC and by showing that visual representations in PPC largely originate from OTC.
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