Caratteristiche funzionali dei neuroni del nucleo talamico ventralis lateralis (VL), reattivi alla stimolazione del nucleo omonimo contralaterale

Antonio Bava; Federico Cicirata; Giorgio M. Innocenti; Maria Maricchiolo

Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti (1971)

  • Volume: 51, Issue: 6, page 569-576
  • ISSN: 0392-7881

Abstract

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Carrying on the analysis of the transcommissural linkages previously ascertained (by means of mass recording techniques) between the thalamic nuclei ventrales laterales (VL), chloralose-anaesthetized (80 mg/kg i.p.) cats with acute lesions of somatomotor cortex were used to study the transcommissural reactivity of single VL units, isolated with extracellular tungsten microelectrodes and characterized by their responses to dentate nucleus stimulation and, when present, also by their responses to the stimulation of n. entopeduncularis and of peripheral receptive fields. Out of a sample of 144 VL units, 38 (26 p. 100 approximately) were seen to be transynaptically excited by transcommissural impulses originated by contralateral VL stiulation, 20 (about 14 p. 100) were inhibited, and 5 more exhibited complex responses, characterized by early activation followed by prolonged inhibition. The units excited by contralateral VL were distributed throughout the whole nucleus with no topographical segregation, whereas the inhibited group was mainly found in the rostro-median portions. The dentate responses elicited in this group were different (as to latency and discharge patterns) from those of the VL-excited units. No differences were observed, on the other hand, between the dentate responses of the latter and those of the units insensitive to contralateral VL stimulation.

How to cite

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Bava, Antonio, et al. "Caratteristiche funzionali dei neuroni del nucleo talamico ventralis lateralis (VL), reattivi alla stimolazione del nucleo omonimo contralaterale." Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti 51.6 (1971): 569-576. <http://eudml.org/doc/296237>.

@article{Bava1971,
author = {Bava, Antonio, Cicirata, Federico, Innocenti, Giorgio M., Maricchiolo, Maria},
journal = {Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti},
language = {ita},
month = {12},
number = {6},
pages = {569-576},
publisher = {Accademia Nazionale dei Lincei},
title = {Caratteristiche funzionali dei neuroni del nucleo talamico ventralis lateralis (VL), reattivi alla stimolazione del nucleo omonimo contralaterale},
url = {http://eudml.org/doc/296237},
volume = {51},
year = {1971},
}

TY - JOUR
AU - Bava, Antonio
AU - Cicirata, Federico
AU - Innocenti, Giorgio M.
AU - Maricchiolo, Maria
TI - Caratteristiche funzionali dei neuroni del nucleo talamico ventralis lateralis (VL), reattivi alla stimolazione del nucleo omonimo contralaterale
JO - Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti
DA - 1971/12//
PB - Accademia Nazionale dei Lincei
VL - 51
IS - 6
SP - 569
EP - 576
LA - ita
UR - http://eudml.org/doc/296237
ER -

References

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