Thalamic projections of the fusiform gyrus in man.

Details

Serval ID
serval:BIB_669EF5AC84F7
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Thalamic projections of the fusiform gyrus in man.
Journal
European Journal of Neuroscience
Author(s)
Clarke S., Riahi-Arya S., Tardif E., Eskenasy A.C., Probst A.
ISSN
0953-816X
Publication state
Published
Issued date
1999
Peer-reviewed
Oui
Volume
11
Number
5
Pages
1835-1838
Language
english
Abstract
Previous retrograde degeneration studies have shown that human extrastriate visual cortex receives projections from the pulvinar, but their precise topographical organization remained unknown. We report on the distribution of thalamic projections originating in the fusiform gyrus, as studied with the Nauta method for anterogradely degenerating axons, in a case of right fusiform gyrus infarction. Ipsilaterally to the lesion, high density of afferents was found in the inferior pulvinar nucleus and a low density in the medial pulvinar nucleus as well as in the postero-inferior part of the reticular nucleus; no degenerating fibres were found in the lateral geniculate body. Degenerating axons were completely absent in the contralateral thalamus. Thus, there is a precise topographic relationship between parts of the extrastriate cortex and the pulvinar, suggesting segregated thalamocortical pathways for different parts of the extrastriate cortex. As in nonhuman primates, the human inferior temporal cortex has no direct output to the lateral geniculate body.
Keywords
Aged, Axons, Geniculate Bodies, Humans, Male, Nerve Degeneration, Neurons, Afferent, Temporal Lobe, Visual Pathways
Pubmed
Web of science
Create date
25/01/2008 12:34
Last modification date
20/08/2019 15:22
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