Lifespan Changes, Sex Differences, and Hormone Effects in the Primary Visual Cortex of the Rat and the Associated Area of the Corpus Callosum, the Splenium
Yates, Melissa A.
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https://hdl.handle.net/2142/82143
Description
Title
Lifespan Changes, Sex Differences, and Hormone Effects in the Primary Visual Cortex of the Rat and the Associated Area of the Corpus Callosum, the Splenium
Author(s)
Yates, Melissa A.
Issue Date
2007
Doctoral Committee Chair(s)
Juraska, Janice M.
Department of Study
Psychology
Discipline
Psychology
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Psychology, Psychobiology
Language
eng
Abstract
Effects of aging were also investigated in Oc1 and the splenium. Examination of neuron number in aged animals (19-22 months) found that Oc1 was significantly impacted during aging, with both males and females losing neurons (18-20%) between day 90 and old age, maintaining the sex differences in neuron number. However, examination of the splenium in adult (day 120), middle age (12-13 months) and aged (18-26 months) animals showed no age-related deterioration. Instead, the splenium increased in size between adulthood and old age, demonstrating the regionally-specific effects of age in the rat.
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