Geesaman, Bard J. and Born, Richard T. and Andersen, Richard A. and Tootell, Roger B. H. (1997) Maps of complex motion selectivity in the superior temporal cortex of the alert macaque monkey: a double-label 2-deoxyglucose study. Cerebral Cortex, 7 (8). pp. 749-757. ISSN 1047–3211 http://resolver.caltech.edu/CaltechAUTHORS:GEEcecor97
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The superior temporal sulcus (STS) of the macaque monkey contains multiple visual areas. Many neurons within these regions respond selectively to motion direction and to more complex motion patterns, such as expansion, contraction and rotation. Single-unit recording and optical recording studies in MT/MST suggest that cells with similar tuning properties are clustered into columns extending through multiple cortical layers. In this study, we used a double-label 2-deoxyglucose technique in awake, behaving macaque monkeys to clarify this functional organization. This technique allowed us to label, in a single animal, two populations of neurons responding to two different visual stimuli. In one monkey we compared expansion with contraction; in a second monkey we compared expansion with clockwise rotation. Within the STS we found a patchy arrangement of cortical columns with alternating stimulus selectivity: columns of neurons preferring expansion versus contraction were more widely separated than those selective for expansion versus rotation. This mosaic of interdigitating columns on the floor and posterior bank of the STS included area MT and some neighboring regions of cortex, perhaps including area MST.
|Additional Information:||Copyright © 1997 by Oxford University Press. Reprinted with permission. The authors would like to thank Gail Robertson for excellent technical assistance and Ning Qian for a discussion of the local phase algorithm. This project was support by NIH grants RO1 EY07492 (R.A.A.), RO1 EY11379 (R.T.B.) and RO1 EY07980 (R.B.H.T.), and the Human Frontiers Science Program (R.A.A. and R.B.H.T.).|
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|Deposited On:||18 Jan 2006|
|Last Modified:||26 Dec 2012 08:44|
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