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Middle Temporal Cortical Visual Area Visuospatial Function in Galago senegalensis

UNCG Author/Contributor (non-UNCG co-authors, if there are any, appear on document)
Timothy Johnston, Dean (Creator)
Institution
The University of North Carolina at Greensboro (UNCG )
Web Site: http://library.uncg.edu/

Abstract: Bushbabies with lesions restricted to the middle temporal (MT) area and animals with larger extrastriate lesions including area MT were compared with normal control animals on tests of visuospatial localization and discrimination learning. Ablation of area MT was sufficient to produce impairments in directing behavior appropriately on the basis of visuospatial cues. Extension of the lesion into areas 18 and 19 produced more profound deficits. Retardation in learning a stripe discrimination problem was correlated with the extent of damage to the geniculostriate system. It is hypothesized that area MT is important in achieving and maintaining fixation on a target whereas cortical areas 18 and 19 are necessary for establishing the location of stimulation in visual space.

Additional Information

Publication
Journal of Comparative and Physiological Psychology
Language: English
Date: 1979
Keywords
Middle Temporal Cortical Visual Area, Visuospatial Function, Galago senegalensis