Plasticity of Visual Memory circuits in Developing Monkeys: Evidence of Exuberant Pathways in Area Teo of Infant
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Authors
Nigro, Elise Danielle
Issue Date
1989
Type
Thesis
Language
en_US
Keywords
Alternative Title
Abstract
Visual object recognition relies on the connections between area
TE and the amygdala. Bilateral removal of area TE in adult rhesus
monkeys (Macaca mulatta) results in a severe loss of visual
recognition, while infant monkeys receiving the same lesion show
significant sparing of this function. This sparing could be the result
of other cortical areas taking over the area TE connections with the
amygdala; possibly through the maintenance of exuberant pathways
that usually retract during development. Area TEO was chosen to
examine the existence of such exuberant pathways. The neural
tracing methods of wheat germ agglutin-conjugated horseradish
peroxidase and autoradiography were employed to trace the
connections between areas TE and TEO and the amygdala in both an
infant and adult monkey. Reciprocal connections were observed
between area TEO and the amygdala in the infant, but no such
connections were found in the adult; thus, the existence of exuberant
pathways in area TEO of the infant identifies it as one of the possible
areas that are involved in taking over the connections between area
TE and the amygdala.
Description
v, 38 p.
Citation
Publisher
Kalamazoo College
License
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