The Consequence of a “Consolidation” Period Following Brief Monocular Deprivation in Kittens
Brief periods of limited visual exposure, such as monocular deprivation, have been reported to cause changes in striate cortex that are accentuated by a delay prior to physiological study. This notion, called “consolidation” in previous work, has been tested in the present study. Four-week-old normally reared kittens were monocularly occluded for brief periods (8 or 24 hours). Extracellular study of striate cortex was undertaken either immediately after occlusion or following a period during which the animals were kept in darkness. Substantial monocular deprivation effects were found in both groups, but the most pronounced changes were observed for the kittens studied immediately after exposure. Therefore, no “consolidation” has been observed. On the contrary, it appears that the period spent in darkness actually diminished the consequences of the monocular deprivation.
KeywordsDelay Period Striate Cortex Ocular Dominance Monocular Deprivation Optimal Stimulus
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