Cortical Projections of Otolith Organs in the Cat

Jijiwa, Hiroyasu; T, Kawaguchi; Watanabe, Satoru; Miyata, Hideo

doi:10.3109/00016489109131348

Cited by 17 publications

(9 citation statements)

References 5 publications

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“…In one study, electrical stimulation of both saccule or utricle gave rise to evoked potentials in the same areas of the cat cerebral cortex (3a, 2v, and SII) as canal stimulation. 86…”

Section: Otolith Signals In the Thalamus And Cerebral Cortexmentioning

confidence: 99%

A Review of Otolith Pathways to Brainstem and Cerebellum

Büttner-Ennevera

1999

Annals of the New York Academy of Sciences

138

100

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Our knowledge of otolith pathways is developing rapidly, but is still far from complete. Primary afferents from the sacculus and utricle terminate mainly in the lateral, inferior and caudal superior vestibular nuclei, and the ventral cerebellum, in particular the nodulus. Otolith signals descend via reticulo- and vestibulospinal pathways in the spinal cord to influence neck motoneurons and ascending proprioceptive afferents. Utricular information can reach the extraocular eye muscles via mono-, di-, and multisynaptic pathways, but saccular afferents probably only by multisynaptic pathways. The otolith signals are relayed from the vestibular nuclei, medullary reticular formation, inferior olive, and lateral reticular nucleus to sagittal zones in the caudal cerebellar vermis (nodulus and uvula), and influence the deep cerebellar nuclei. The graviceptive information could be channeled by the cerebellar efferents back to the vestibular and inferior olive complex, or fed into ascending pathways that would innervate the mescencephalon, the thalamus, and cerebral cortex.

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“…In one study, electrical stimulation of both saccule or utricle gave rise to evoked potentials in the same areas of the cat cerebral cortex (3a, 2v, and SII) as canal stimulation. 86…”

Section: Otolith Signals In the Thalamus And Cerebral Cortexmentioning

confidence: 99%

A Review of Otolith Pathways to Brainstem and Cerebellum

Büttner-Ennevera

1999

Annals of the New York Academy of Sciences

138

100

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“…Later studies showed that area 2v is located at the posterior border of area 2, in the vicinity of areas 5 and 7, and posterior to areas devoted to somatosensory representations of the hand and the mouth (Fredrickson and Rubin, 1986;Schwarz and Fredrickson, 1971;Schwarz et al, 1973aSchwarz et al, , 1973b. Vestibular-evoked potentials recorded in area 2v of the monkey (Büttner and Buettner, 1978) and the cat (Jijiwa et al, 1991) indicated that this region receives inputs from the semicircular canals as well as the otoliths.…”

Section: The Vestibular Cortexmentioning

confidence: 99%

The thalamocortical vestibular system in animals and humans

Lopez

Blanke

2011

Brain Research Reviews

469

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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“…The PIVC was delineated in electrophysiological studies in old and new world monkeys [Grü sser et al, 1990a,b] and cats [Jijiwa et al, 1991]. The authors found multisensory neurons, that responded not only to vestibular stimulation but also to somatosensory, visual, and optokinetic stimulation.…”

Section: Activations During Unimodal Vestibular Stimulationmentioning

confidence: 99%

Sensory system interactions during simultaneous vestibular and visual stimulation in PET

Deutschländer

Bense

Stephan

et al. 2002

Human Brain Mapping

121

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The patterns of regional cerebral blood flow (rCBF) increases and decreases in PET were compared for unimodal vestibular, unimodal visual, and for simultaneous vestibular and visual stimulation. Thirteen healthy volunteers were exposed to a) caloric vestibular stimulation, b) small-field visual motion stimulation in roll, c) simultaneous caloric vestibular and visual pattern stimulation. Unimodal vestibular stimulation led to activations of vestibular cortex areas, in particular the parieto-insular vestibular cortex (PIVC), and concurrent deactivations of visual cortical areas [Brodmann area (BA) 17-19]. Unimodal visual motion stimulation led to activations of the striate visual cortex and the motion-sensitive area in the middle temporal/middle occipital gyri (BA 19/37) with concurrent deactivations in the PIVC. Simultaneous bimodal stimulation resulted in activations of the cortical representation of both sensory modalities. In the latter condition activations and deactivations were significantly smaller compared to unimodal stimulation. The findings are consistent with the concept of an inhibitory reciprocal vestibulo-visual interaction in all three stimulus conditions.

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Cortical Projections of Otolith Organs in the Cat

Cited by 17 publications

References 5 publications

A Review of Otolith Pathways to Brainstem and Cerebellum

A Review of Otolith Pathways to Brainstem and Cerebellum

The thalamocortical vestibular system in animals and humans

Sensory system interactions during simultaneous vestibular and visual stimulation in PET

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