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Limb input to the cat vestibular nuclei
Linköpings universitet. University of Toronto, Canada.
Linköpings universitet. University of Toronto, Canada.
Linköpings universitet. University of Toronto, Canada.
Linköpings universitet. University of Toronto, Canada.
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1979 (Engelska)Ingår i: Acta Oto-Laryngologica, ISSN 0001-6489, E-ISSN 1651-2251, ISSN ISSN 0001-6489, Vol. 87, nr 1-2, s. 113-122Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The input from fore- and hindlimbs to the vestibular nuclear complex (VNC) was investigated in awake cats. Electrical stimulus was given to the sciatic, radial and vestibular nerves bilaterally and single unit responses were recorded in the VNC with extracellular technique. The position of the microelectrode was histologically confirmed. All four major vestibular nuclei received fore- as well as hindlimb input. Forty per cent of the neurons with limb input also received vestibular afferents. No major distinguishing features appeared between the different nuclei with regard to response characteristics. Certain differences in laterality of response, quantitative fore-hindlimb ratio and somatosensory-labyrinthine convergence were observed however. Response latencies to sciatic and radial nerve stimuli always exceeded a 3 msec and were grouped around 8 and 16 msec. A third population of vestibular neurons had latencies over 20 msec. Both excitatory and inhibitory responses were recorded, with the latter not always following an activation. The findings illustrate the complex nature of the ascending pathway to the VNC and the integrative properties of this complex.

Ort, förlag, år, upplaga, sidor
Informa Healthcare, 1979. Vol. 87, nr 1-2, s. 113-122
Nationell ämneskategori
Medicin och hälsovetenskap
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URN: urn:nbn:se:liu:diva-91740DOI: 10.3109/00016487909126395PubMedID: 760370OAI: oai:DiVA.org:liu-91740DiVA, id: diva2:618985
Tillgänglig från: 2013-04-30 Skapad: 2013-04-30 Senast uppdaterad: 2017-12-06

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Ödkvist, LarsLarsby, Birgitta

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