A horseradish peroxidase study of afferent projections to nucleus reticularis thalami in the cat

M. L. Sotgiu, G. Marini, D. Esposti, E. Fava

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Abstract

Afferent projections from both the reticular formation and the thalamic relay nuclei to nucleus reticularis thalami (R) were studied using the HRP technique. Injections were performed in different regions of the nucleus. Numerous labelled cells were found ipsilaterally in the lateral geniculate nucleus (GL) following HRP injections in dorsolateral regions of R and in the ventrobasal complex (VB) following HRP injections in the ventral regions. No labelling of brain stem reticular structures was ever found. These results provide evidence for direct projections from the VB and GL nuclei to R. The functional meaning of this data is discussed in relation to previous anatomical and neurophysiological findings. The hypothesis of a significant role of R in feedback circuits modulating sensory information seems to be supported.

Original languageEnglish
Pages (from-to)151-159
Number of pages9
JournalArchives Italiennes de Biologie
Volume119
Issue number2
Publication statusPublished - 1981

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Horseradish Peroxidase
Thalamus
Geniculate Bodies
Ventral Thalamic Nuclei
Cats
Injections
Thalamic Nuclei
Reticular Formation
Brain Stem

ASJC Scopus subject areas

  • Medicine(all)

Cite this

A horseradish peroxidase study of afferent projections to nucleus reticularis thalami in the cat. / Sotgiu, M. L.; Marini, G.; Esposti, D.; Fava, E.

In: Archives Italiennes de Biologie, Vol. 119, No. 2, 1981, p. 151-159.

Research output: Contribution to journalArticle

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