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In this functional magnetic resonance imaging study of the decision process in humans, we demonstrate that an accumulator model predicts responses to visual motion in the intraparietal sulcus (IPS). Significantly, the metrics used to define responses within the IPS also reveal distinct but interacting nodes in a circuit, including early sensory detectors in visual cortex, the visuomotor integration system of the IPS, and centers of cognitive control in the prefrontal cortex, all of which collectively define a perceptual decision-making network.<\/jats:p>","DOI":"10.1152\/jn.00364.2009","type":"journal-article","created":{"date-parts":[[2009,12,24]],"date-time":"2009-12-24T03:20:12Z","timestamp":1261624812000},"page":"1179-1194","source":"Crossref","is-referenced-by-count":101,"title":["The Functional Anatomy of a Perceptual Decision in the Human Brain"],"prefix":"10.1152","volume":"103","author":[{"given":"Andrew S.","family":"Kayser","sequence":"first","affiliation":[{"name":"Helen Wills Neuroscience Institute, Department of Psychology and the Henry H. 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