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Published October 12, 1973 | public
Journal Article

The visuotopic organization of the superior colliculus of the owl monkey (Aotus trivirgatus) and the bush baby (Galago senegalensis)

Abstract

Microelectrodes were used to map the representation of the visual field in the superior colliculus of the owl monkey and bush baby. The results lead to the conclusion that the representation in these primates is restricted to the contralateral half of the visual field in each tectum, while the representation reported for several other species of mammals is more extensive including part of the ipsilateral half field and all or most of the retina of the contralateral eye. Thus, we conclude that at least two different basic types of visuotopic organization are found in the mammalian superior colliculus.

Additional Information

© 1973 Published by Elsevier. Accepted 20 March 1973. This investigation was supported by NINDS Program Project Grant NS-06225. R. H. Lane, J. M. Allman, and F. M. Miezin are trainees under NINDS Training Grant NS-05326. J. H. Kaas was supported by NINDS Grant NS-06225 and NICHD Core Grant HD 03352. We thank Dr. Leon Schmidt, Southern Research Institute, Birmingham, Ala., for the owl monkeys and Drs. I. T. Diamond and W. C. Hall, Duke University, for the galagos used in this study. Dr. C. N. Woolsey provided helpful comments on the manuscript. Histological materials were prepared by Mrs. J. Ekleberry and Mrs. I. Lucey. Illustrations were drawn by Ms. D. Urban. Photographic work was done by Mr. T. Stewart.

Additional details

Created:
August 19, 2023
Modified:
October 20, 2023