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Article: Spatiotemporal characteristics of central otolith neurons

TitleSpatiotemporal characteristics of central otolith neurons
Authors
Issue Date1997
PublisherZhonghua Yixuehui. The Journal's web site is located at http://www.cmj.org/
Citation
Chinese Medical Journal, 1997, v. 110 n. 12, p. 907-910 How to Cite?
AbstractPurpose To review the spatiotemporal behaviours of central otolith neurons in decerebrate animals. Data sources Laboratory of Neurophysiology, Department of Physiology, Faculty of Medicine, The University of Hong Kong. Data extraction Results of key research findings from 1992 to 1997. Results With constant velocity colckwise (CW) and counterclockwise (CCW) off-vertical axis rotations as stimuli to the otolith organs, neurons in the vestibular nuclei and medullary reticular formation showed characteristic spatiotemporal behavious. One-dimensional neurons showed symmetric and stable bidirectional response sensitivities (δ) to change in velocity while two-dimensional neurons showed asymmetric and variable δ to velocity. This CW-CCW asymmetry to bidirectional rotations may provide directional coding in the modulation of neural signals. Vestibular nuclear neurons also displayed distinct spontaneous discharge patterns at the stationary and earth-horizontal position, indicating that one- and two-dimensional neurons belong to physiologically distinct etities. These spatiotemporal behavious of the vestibular nuclear neurons were also shown to be precisely controlled by imputs from the vestibulocerebellum and/or bilateral otoliths. In both the vestibular nucleus and the reticular formation, the best response orientations of one-dimensional neurons and the orientations of the maximum response vector of two-dimensional neurons were found to point in all directions close to the horizontal plane, indicating that all bead orientations on this plane are encoded across an ensemble of neurons. Conclusion Otolith-evoked behaviours of the one-dimensional and two-dimensional neurons constitute an important element for the recognition of the direction and orientation of head motion in space.
Persistent Identifierhttp://hdl.handle.net/10722/81349
ISSN
2015 Impact Factor: 0.957
2015 SCImago Journal Rankings: 0.428
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChan, YSen_HK
dc.contributor.authorLai, CHen_HK
dc.contributor.authorJiang, Ben_HK
dc.contributor.authorZhang, YKen_HK
dc.contributor.authorWang, Hen_HK
dc.date.accessioned2010-09-06T08:16:38Z-
dc.date.available2010-09-06T08:16:38Z-
dc.date.issued1997en_HK
dc.identifier.citationChinese Medical Journal, 1997, v. 110 n. 12, p. 907-910en_HK
dc.identifier.issn0366-6999en_HK
dc.identifier.urihttp://hdl.handle.net/10722/81349-
dc.description.abstractPurpose To review the spatiotemporal behaviours of central otolith neurons in decerebrate animals. Data sources Laboratory of Neurophysiology, Department of Physiology, Faculty of Medicine, The University of Hong Kong. Data extraction Results of key research findings from 1992 to 1997. Results With constant velocity colckwise (CW) and counterclockwise (CCW) off-vertical axis rotations as stimuli to the otolith organs, neurons in the vestibular nuclei and medullary reticular formation showed characteristic spatiotemporal behavious. One-dimensional neurons showed symmetric and stable bidirectional response sensitivities (δ) to change in velocity while two-dimensional neurons showed asymmetric and variable δ to velocity. This CW-CCW asymmetry to bidirectional rotations may provide directional coding in the modulation of neural signals. Vestibular nuclear neurons also displayed distinct spontaneous discharge patterns at the stationary and earth-horizontal position, indicating that one- and two-dimensional neurons belong to physiologically distinct etities. These spatiotemporal behavious of the vestibular nuclear neurons were also shown to be precisely controlled by imputs from the vestibulocerebellum and/or bilateral otoliths. In both the vestibular nucleus and the reticular formation, the best response orientations of one-dimensional neurons and the orientations of the maximum response vector of two-dimensional neurons were found to point in all directions close to the horizontal plane, indicating that all bead orientations on this plane are encoded across an ensemble of neurons. Conclusion Otolith-evoked behaviours of the one-dimensional and two-dimensional neurons constitute an important element for the recognition of the direction and orientation of head motion in space.en_HK
dc.languageengen_HK
dc.publisherZhonghua Yixuehui. The Journal's web site is located at http://www.cmj.org/en_HK
dc.relation.ispartofChinese Medical Journalen_HK
dc.titleSpatiotemporal characteristics of central otolith neuronsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0366-6999&volume=110&spage=907&epage=910&date=1997&atitle=Spatiotemporal+characteristics+of+central+otolith+neuronsen_HK
dc.identifier.emailChan, YS: yschan@hkucc.hku.hken_HK
dc.identifier.emailLai, CH: chlaib@hku.hken_HK
dc.identifier.authorityChan, YS=rp00318en_HK
dc.identifier.authorityLai, CH=rp00396en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.pmid9772399-
dc.identifier.scopuseid_2-s2.0-2442551200en_HK
dc.identifier.hkuros38354en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-2442551200&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume110en_HK
dc.identifier.issue12en_HK
dc.identifier.spage907en_HK
dc.identifier.epage910en_HK
dc.identifier.isiWOS:000071081600003-
dc.publisher.placeChinaen_HK
dc.identifier.scopusauthoridChan, YS=7403676627en_HK
dc.identifier.scopusauthoridLai, CH=7403086597en_HK
dc.identifier.scopusauthoridJiang, B=36876814200en_HK
dc.identifier.scopusauthoridZhang, YK=17344752500en_HK
dc.identifier.scopusauthoridWang, H=15119990000en_HK

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