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Double retrograde tracer study of the thalamostriatal projections to the cat caudate nucleus

✍ Scribed by Silvano De Las Heras; Elisa Mengual; José Manuel Giménez-Amaya

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
863 KB
Volume
32
Category
Article
ISSN
0887-4476

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✦ Synopsis

The distribution of thalamostriatal neurons projecting to the cat caudate nucleus was examined by retrograde fluorescent tracers. Thus, Fast Blue and Diamidino Yellow were concomitantly injected in different rostrocaudal, dorsoventral, or mediolateral sectors of the caudate nucleus. The main findings of this study are as follows: (1) few double-labeled cells were found after two injections in different sectors of the caudate nucleus; (2) double-labeled neurons were more abundant after adjacent injections and they were mainly located in the caudal intralaminar nuclei, in the rhomboid nucleus and in the dorsal mediodorsal nucleus; and (3) there were variations in the spatial organization of the thalamostriatal neurons projecting to various sectors of the caudate nucleus in the different thalamic nuclei known to project to this part of the striatum.

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