論文

2002年12月

Properties of utricular-activated vestibular neurons that project to the contralateral vestibular nuclei in the cat

EXPERIMENTAL BRAIN RESEARCH
  • R Bai
  • ,
  • H Meng
  • ,
  • H Sato
  • ,
  • M Imagawa
  • ,
  • M Sasaki
  • ,
  • Y Uchino

147
4
開始ページ
419
終了ページ
425
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1007/s00221-002-1284-5
出版者・発行元
SPRINGER-VERLAG

The properties of utricular (UT)-activated vestibular neurons that send axons to the contralateral vestibular nuclei (commissural neurons) were investigated intracellularly or extracellularly in decerebrate cats. A total of 27 vestibular neurons were orthodromically activated by stimulation of UT nerves and antidromically activated by stimulation of the contralateral vestibular nuclei. All neurons tested were classified as vestibulospinal (VS), vestibulooculospinal (VOS), vestibuloocular (VO), and unidentified vestibular neurons (V) after antidromic stimulation of the spinal cord and oculomotor/trochlear nuclei. Most UT-activated commissural neurons (20/27) received monosynaptic inputs. Twelve of 27 commissural neurons were located in the medial vestibular nucleus, 5 were in the lateral vestibular nucleus, 10 were in the descending vestibular nucleus, and no commissural neurons were recorded in the superior vestibular nucleus. Seven of 27 neurons were commissural VS neurons, 9 of 27 were commissural VOS neurons, and I I of 27 were commissural V neurons. No commissural VO neurons were found. All VOS neurons and 3 VS neurons issued descending axons via the medial vestibulospinal tract. We also studied convergent inputs from the posterior semicircular canal (PC) nerve onto UT-activated commissural neurons. Five of 27 UT-activated commissural neurons received converging inputs from the PC nerves.

リンク情報
DOI
https://doi.org/10.1007/s00221-002-1284-5
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000179924800001&DestApp=WOS_CPL
ID情報
  • DOI : 10.1007/s00221-002-1284-5
  • ISSN : 0014-4819
  • Web of Science ID : WOS:000179924800001

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