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Representation of the visual field in striate and adjoining cortex of the owl monkey (Aotus trivirgatus)

Allman, John M. and Kaas, Jon H. (1971) Representation of the visual field in striate and adjoining cortex of the owl monkey (Aotus trivirgatus). Brain Research, 35 (1). pp. 89-106. ISSN 0006-8993. doi:10.1016/0006-8993(71)90596-8.

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Microelectrode mapping methods were used to determine the representation of the visual field in striate cortex and adjacent cortex in the owl monkey. As in other primates, the center of gaze is represented in dorsolateral striate cortex. Most of the lower quadrant of the visual field is represented on the upper bank of the calcarine sulcusm while more central portions of the lower quadrant are represented on the medial wall and dorsal surface. The representation of the upper quadrant extends from the dorsolateral surface the tentorial surface and across the lower bank of the calcarine sulcus. The representation of the temporal periphery of the upper quadrant was found on the upper bank of the calcarine sulcus. Almost half of striate cortex is devoted to the central 20° of the visual field and 90% of the border corresponds to the zero vertical meridian or lilne of decussation. Recordings from cortex adjoining striate cortex indicate that the second visual area, V II, borders the complete vertical meridian of striate cortex. The small representation of the temporal periphery in striate cortex is bordered by cortez that was nonresponsive to visual stimuli. The responsive and nonresponsive bordering areas were found to relate to two histologically distinct types of cortex, areas 18 and ‘pro-striata’ respectively.

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Additional Information:© 1971 Published by Elsevier. (Accepted June 18th, 1971) This study was supported by Grant 5-P01-NS-06225 to the Laboratory of Neurophysiology, University of Wisconsin. J. M. Allman was a National Science Foundation Predoctoral Fellow in the Department of Anthropology, University of Chicago. J. H. Kaas was supported by 1-P01-HD-03352. We thank Dr. Leon Schmidt, Southern Research Institute, Birmingham, Alabama, for providing the owl monkeys used in this study. We also thank Drs. C. N. Woolsey, R. M. Benjamin and R. W. Guillery for helpful comments on the manuscript. Histological materials were prepared by Mrs. Jo Ann Ekleberry and Mrs. Isabel Lucey. Photographic work was done by Mr. T. P. Stewart.
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NSF Graduate Research FellowshipUNSPECIFIED
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Official Citation:John M. Allman, Jon H. Kaas, Representation of the visual field in striate and adjoining cortex of the owl monkey(Aotus trivirgatus), Brain Research, Volume 35, Issue 1, 1971, Pages 89-106, ISSN 0006-8993,
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:104094
Deposited By: George Porter
Deposited On:26 Jun 2020 20:28
Last Modified:16 Nov 2021 18:28

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