Motor cortex vestibular responses in the chloralosed cat

Boisacq-Schepens, N; Miroslav, Hanuš

doi:10.1007/bf00236595

Cited by 41 publications

(7 citation statements)

References 8 publications

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“…The latency of the evoked potential in the somatosensory cortex induced in the present study by electrical stimulation of the HSC nerve of rat was similar to the latency observed in cats (12). The latencies of the evoked potential in the vestibular nuclei induced by electrical stimulation of the vestibular nerve of cats were 0.4-0.7, 0.8-l .2, and 1.4-2.5 ms for the P, Nl, N2 waves, respectively (13), suggesting that the evoked potentials in the somatosensory cortex of rats may be polysynaptic.…”

Section: Discussionsupporting

confidence: 87%

“…34, NO. 3 of cats (12), and may indicate that the contralateral pathway contains a greater number of nerve fibers than does the ipsilateral pathway. In addition, it is possible that pathways to the contralateral somatosensory cortex might contain more synapses than do those that project to the ipsilateral cortex because the latencies in the contralateral somatosensory cortex were longer than those in the ipsilateral cortex.…”

Section: Discussionmentioning

confidence: 99%

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Resolution of the region of secondary somatosensory cortex that responds to stimulation of the horizontal semicircular canal in rats

Park

Soh

Kim

et al. 2004

Neuroscience Res Communica

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To elucidate the region within the somatosensory cortex that receives inputs from the horizontal semicircular canal (HSC) in rats, we used a multichannel recording system to measure evoked potentials in the parietal cortex in response to electrical stimulation of the HSC nerve. The recordings suggested that the HSC nerves projected bilaterally into the somatosensory cortex, with a contralateral predominance. The territory within the somatosensory cortex that responded to the stimulation of the HSC nerve was as follows: mediolateral 6.0 mm and anteroposterior -1.3 --2.3 mm from the bregma, and depth 1.4 -1.6 mm from the cortex surface horizontally by stereotaxic atlas. The evoked potential in the parietal cortex that was induced by electrical stimulation was abolished after the administration of tetrodotoxin into the oval window of the vestibular system. These results suggest that the horizontal semicircular nerve projects bilaterally into the deep layers of the secondary somatosensory cortex.

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Section: Discussionsupporting

confidence: 87%

Section: Discussionmentioning

confidence: 99%

Resolution of the region of secondary somatosensory cortex that responds to stimulation of the horizontal semicircular canal in rats

Park

Soh

Kim

et al. 2004

Neuroscience Res Communica

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“…Studies in animals showed vestibular projections to regions in the primary motor cortex (area 4) and premotor cortex (area 6) that are associated with motor and oculomotor control (Boisacq-Schepens and Hanus, 1972;Ebata et al, 2004;Fukushima et al, 2006Fukushima et al, , 2000Fukushima et al, , 2010Fukushima and Kaneko, 1995;Sugiuchi et al, 2005). Ebata et al (2004) showed that potentials evoked by electrical stimulation of the vestibular nerve were localized in the periacutate cortex, mostly in the postarcuate cortex located around the spur of the arcuate sulcus, and to a lesser extent in area 6, medially to the superior ramus of the arcuate sulcus (Fig.…”

Section: Vestibular Projections To the Frontal Cortexmentioning

confidence: 99%

The thalamocortical vestibular system in animals and humans

Lopez

Blanke

2011

Brain Research Reviews

460

379

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The vestibular system provides the brain with sensory signals about three-dimensional head rotations and translations. These signals are important for postural and oculomotor control, as well as for spatial and bodily perception and cognition, and they are subtended by pathways running from the vestibular nuclei to the thalamus, cerebellum and the "vestibular cortex."The present review summarizes current knowledge on the anatomy of the thalamocortical vestibular system and discusses data from electrophysiology and neuroanatomy in animals by comparing them with data from neuroimagery and neurology in humans. Multiple thalamic nuclei are involved in vestibular processing, including the ventroposterior complex, the ventroanterior-ventrolateral complex, the intralaminar nuclei and the posterior nuclear group 2 0 1 1 ) 1 1 9 -1 4 6 Abbreviations: 3aHv, 3a-hand-vestibular area; 3aNv, 3a-neck-vestibular area; ASS, anterior suprasylvian cortex; DVN, descending vestibular nucleus; FEF, frontal eye fields; Ig, insula granularis; IL, intralaminar nuclei; LD, lateral dorsal nucleus; LGN, lateral geniculate nucleus; LP, lateral posterior nucleus; LVN, lateral vestibular nucleus; MGmc, medial geniculate nucleus, pars magnocellularis; MGN, medial geniculate nucleus; MIP, medial intraparietal area; MST, medial superior temporal area; MT, middle temporal area; MVN, medial vestibular nucleus; PIVC, parieto-insular vestibular cortex; PO, posterior group of the thalamus; Reipt, area retroinsularis pars parietalis; Ri, area retroinsularis; SGN, suprageniculate nucleus; SVN, superior vestibular nucleus; TPJ, temporo-parietal junction; VA, ventroanterior thalamic nucleus; Vim, nucleus ventralis intermedius; VIP R A I N R E S E A R C H R E V I E W S 6 7 (

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“…Area 3a responds to vestibular activities (Sans et al, 1970;Boisacq-Schepens and Roucoux-Hanus, 1972;Ö dkvist et al, 1974), and the Vim projects to area 3a (Liedgren et al, 1976b;Nakano et al, 1992b). Area 3a seems to receive vestibular inputs by means of the Vim.…”

Section: Projection To the Nucleus Ventralis Intermedius Vl And Vmmentioning

confidence: 99%

Projections of the vestibular nuclei to the thalamus in the rat: A Phaseolus vulgaris leucoagglutinin study

Shiroyama¹,

Kayahara²,

Yasui³

et al. 1999

J. Comp. Neurol.

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Injections of the anterograde axonal tracer Phaseolus vulgaris leucoagglutinin were made into individual nuclei of the vestibular nuclear complex of the rat to identify specific projections to the thalamus. The results showed that the superior vestibular nucleus and the medial vestibular nucleus, especially its rostral-to-middle parts, project to the lateral part of the parafascicular thalamic nucleus (corresponding to the centromedian nucleus in primates), the transitional zone between the ventrolateral thalamic nucleus (VL) and the ventral posterolateral thalamic nucleus (VPL) (the region considered to be the nucleus ventralis intermedius of Vogt [Vogt C. 1909. La myeloarchitecture du thalamus du cercopitheque. J Psychol Neurol 12:285-324.]), the lateral part of the centrolateral thalamic nucleus and the dorsal part of the caudal VL; the spinal vestibular nucleus projects to the lateral part of the parafascicular thalamic nucleus, the transitional zone between the VL and the VPL, the caudal part of the ventrobasal complex, and the suprageniculate thalamic nucleus. These results suggest that vestibular information is transmitted not only to the cerebral cortex (mainly area 2V and area 3a) but also to the striatum. They also suggest that vestibular activity may affect gaze control by means of vestibulothalamocortical pathway in addition to vestibulo-ocular and vestibulopremotoneuronal routes.

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Motor cortex vestibular responses in the chloralosed cat

Cited by 41 publications

References 8 publications

Resolution of the region of secondary somatosensory cortex that responds to stimulation of the horizontal semicircular canal in rats

Resolution of the region of secondary somatosensory cortex that responds to stimulation of the horizontal semicircular canal in rats

The thalamocortical vestibular system in animals and humans

Projections of the vestibular nuclei to the thalamus in the rat: A Phaseolus vulgaris leucoagglutinin study

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