Accession Number : AD0438389


Title :   STUDIES OF: (A) THE VISUAL FIELDS OF MONKEYS (B) MEMORY PROCESSES AS AFFECTED BY CEREBRAL LESIONS IN MONKEYS.


Descriptive Note : Final technical rept.


Corporate Author : CAMBRIDGE UNIV (ENGLAND)


Personal Author(s) : Weiskrantz,Lawrence


Report Date : 30 Nov 1963


Pagination or Media Count : 26


Abstract : Analysis of the visual cortex and its relation to behaviour, and of the changes in mnemonic function following circumscribed cerebral lesions and stimulation in the monkey is reported. Previous research has shown that changes in visual capacity following striate cortex lesions in the monkey are not absoluts. When assessed by a perimetry device, the defective regions of the visual fields still permit a response to brief, dim flashes of light, although with decreased efficiency. Acuity measurements indicate a drop in acutiy less than that predictable from the supposed distance of the edge of the field defect from the fovea. It is suggested that the residual capacity is simply the integral of the types of responses found from retinal ganglion cells. Memory changes were analyzed in terms of a distinction between short-term and long-term processes. (Author)


Descriptors :   *VISUAL PERCEPTION , *MEMORY(PSYCHOLOGY) , DAMAGE , CEREBRAL CORTEX , CEREBRAL CORTEX , MONKEYS , VISUAL ACUITY , BRAIN , UNITED KINGDOM


Distribution Statement : APPROVED FOR PUBLIC RELEASE