| pubmed-article:3449488 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:3449488 | lifeskim:mentions | umls-concept:C0086418 | lld:lifeskim |
| pubmed-article:3449488 | lifeskim:mentions | umls-concept:C0030971 | lld:lifeskim |
| pubmed-article:3449488 | lifeskim:mentions | umls-concept:C0682676 | lld:lifeskim |
| pubmed-article:3449488 | lifeskim:mentions | umls-concept:C0234621 | lld:lifeskim |
| pubmed-article:3449488 | pubmed:issue | 3 | lld:pubmed |
| pubmed-article:3449488 | pubmed:dateCreated | 1988-6-20 | lld:pubmed |
| pubmed-article:3449488 | pubmed:abstractText | Circularvection (CV), the optokinetically induced perception of self-motion, is based neurophysiologically upon visual-vestibular convergence. It is yet not known which visual pathways--subcortical accessory optic tract and/or cortical striate projection--convey optokinetic information to the central vestibular system in order to make possible the convergence that has been found: the vestibular nuclei, the thalamus and the vestibular cortex. The functional significance of the visual cortex was demonstrated in 12 patients with homonymous hemianopia who neither perceived CV nor exhibited a postural destabilization when exposed to optokinetic pattern motion (yaw or roll) restricted to the scotoma. The functional significance of the vestibular cortex as well as ipsilateral visual-vestibular interaction was demonstrated in 4 (out of 20) patients with tumour lesions involving the vestibular cortex areas. They either failed to perceive CV or showed a significant increase of CV-latencies when monocular optokinetic stimulation was restricted to the ipsilateral visual cortex. Arguments for and against the following hypothesis are discussed: circularvection is induced by visual motion stimulation of the primary visual cortex which then activates vestibular nuclei neurons by descending pathways and which also informs the vestibular cortex that self-motion with a perceptual direction is involved. Determination of the velocity of CV is mediated by direct visual-vestibular cortex interaction, which most probably is also involved in the perceptual interpretation of motion perception: Self-motion versus object-motion. | lld:pubmed |
| pubmed-article:3449488 | pubmed:language | eng | lld:pubmed |
| pubmed-article:3449488 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:3449488 | pubmed:citationSubset | IM | lld:pubmed |
| pubmed-article:3449488 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:3449488 | pubmed:issn | 0721-9075 | lld:pubmed |
| pubmed-article:3449488 | pubmed:author | pubmed-author:BrandtTT | lld:pubmed |
| pubmed-article:3449488 | pubmed:author | pubmed-author:StraubeAA | lld:pubmed |
| pubmed-article:3449488 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:3449488 | pubmed:volume | 6 | lld:pubmed |
| pubmed-article:3449488 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:3449488 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:3449488 | pubmed:pagination | 211-8 | lld:pubmed |
| pubmed-article:3449488 | pubmed:dateRevised | 2006-11-15 | lld:pubmed |
| pubmed-article:3449488 | pubmed:meshHeading | pubmed-meshheading:3449488-... | lld:pubmed |
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| pubmed-article:3449488 | pubmed:meshHeading | pubmed-meshheading:3449488-... | lld:pubmed |
| pubmed-article:3449488 | pubmed:year | 1987 | lld:pubmed |
| pubmed-article:3449488 | pubmed:articleTitle | Importance of the visual and vestibular cortex for self-motion perception in man (circularvection). | lld:pubmed |
| pubmed-article:3449488 | pubmed:affiliation | Neurological Clinic, Klinikum Grosshadern, University of Munich, Federal Republic of Germany. | lld:pubmed |
| pubmed-article:3449488 | pubmed:publicationType | Journal Article | lld:pubmed |
| pubmed-article:3449488 | pubmed:publicationType | Research Support, Non-U.S. Gov't | lld:pubmed |
