A cerebello-pulvino-cortical and a retino-pulvino-cortical pathways in the cat as revealed by the use of the anterograde and retrograde transport of horseradish peroxidase

The Journal of Comparative Neurology
K ItohA Konishi

Abstract

A cerebello-pulvino-cortical and a retino-pulvino-cortical pathways were revealed in the cat by means of the horseradish peroxidase (HRP) method. The sites of termination of the cerebellofugal and retinofugal fibers in the pulvinar nucleus (Pul) were visualized by the use of the anterograde transport of HRP. The cerebello-pulvinar fibers were found to arise mainly from the parvicellular region of the lateral cerebellar nucleus and to terminate contralaterally in a narrow area at the extreme dorsolateral edge of the Pul at the level of the stereotaxic frontal plane A-7.0. The area of terminal ramification of retino-pulvinar fibers was seen as a thin sheet lying at the extreme lateral edge of the Pul through most of the rostrocaudal extent of the Pul, bilaterally with contralateral predominance. The cerebellorecipient area in the Pul did not seem to overlap with the retinorecipient Pul area; the former appeared to be contiguous ventrolaterally to the latter. The cerebellorecipient and retinorecipient Pul areas were also observed to be connected reciprocally with the cerebral cortical areas; the former was connected with the most posterior part of the area 20, and the latter with the area 19.

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Citations

Nov 19, 1984·Brain Research·M L Rodrigo-Angulo, F Reinoso-Suarez
Apr 29, 1991·Neuroscience Letters·N MizunoT Satoda
Dec 15, 1985·The Journal of Comparative Neurology·C Cavada, F Reinoso-Suárez
Apr 28, 2020·The Journal of Comparative Neurology·Hanako HagioNaoyuki Yamamoto
May 15, 1988·The Journal of Comparative Neurology·B P Abramson, L M Chalupa
Jul 15, 1989·The Journal of Comparative Neurology·B Hutchins, B V Updyke

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