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Conference Paper: Response of medullary reticular neurons of cat to off-vertical axis rotations

TitleResponse of medullary reticular neurons of cat to off-vertical axis rotations
Authors
KeywordsCat
Directional Information
Medullary Reticular Neurons
Otoliths
Spatial Orientation
Issue Date1991
Citation
Acta Oto-Laryngologica, Supplement, 1991 n. 481, p. 31-33 How to Cite?
AbstractTo investigate whether neurons in the medullary reticular formation of decerebrate cats can encode spatial orientation during 360° off-vertical axis rotations (OVAR), responses of these units were studied during constant velocity OVAR in clockwise (CW) and counterclockwise (CCW) directions. Tilt-sensitive units, some of which were activated by antidromic stimulation of the thoracic cord, were found to respond to 360° OVAR with position and direction-dependent modulation in discharge rates. For the individual responsive unit there was a difference in the spatial location of the CW and CCW discharge maxima, while a comparable response gain was obtained for rotations in either direction. The orientation of the best response of each unit was not significantly modified by changes in the amplitude of head tilt and/or velocity of rotation. Such characterized directional axes of the medullary reticular units were found to have a fairly equal distribution over the 360°. The role that neurons in the medullary reticular formation plays in encoding otolith inputs with respect to head movements is discussed.
Persistent Identifierhttp://hdl.handle.net/10722/173429
ISSN
2013 SCImago Journal Rankings: 0.174

 

DC FieldValueLanguage
dc.contributor.authorChan, YSen_US
dc.contributor.authorChen, CWen_US
dc.contributor.authorCheung, YMen_US
dc.date.accessioned2012-10-30T06:31:22Z-
dc.date.available2012-10-30T06:31:22Z-
dc.date.issued1991en_US
dc.identifier.citationActa Oto-Laryngologica, Supplement, 1991 n. 481, p. 31-33en_US
dc.identifier.issn0365-5237en_US
dc.identifier.urihttp://hdl.handle.net/10722/173429-
dc.description.abstractTo investigate whether neurons in the medullary reticular formation of decerebrate cats can encode spatial orientation during 360° off-vertical axis rotations (OVAR), responses of these units were studied during constant velocity OVAR in clockwise (CW) and counterclockwise (CCW) directions. Tilt-sensitive units, some of which were activated by antidromic stimulation of the thoracic cord, were found to respond to 360° OVAR with position and direction-dependent modulation in discharge rates. For the individual responsive unit there was a difference in the spatial location of the CW and CCW discharge maxima, while a comparable response gain was obtained for rotations in either direction. The orientation of the best response of each unit was not significantly modified by changes in the amplitude of head tilt and/or velocity of rotation. Such characterized directional axes of the medullary reticular units were found to have a fairly equal distribution over the 360°. The role that neurons in the medullary reticular formation plays in encoding otolith inputs with respect to head movements is discussed.en_US
dc.languageengen_US
dc.relation.ispartofActa Oto-Laryngologica, Supplementen_US
dc.subjectCaten_US
dc.subjectDirectional Informationen_US
dc.subjectMedullary Reticular Neuronsen_US
dc.subjectOtolithsen_US
dc.subjectSpatial Orientationen_US
dc.titleResponse of medullary reticular neurons of cat to off-vertical axis rotationsen_US
dc.typeConference_Paperen_US
dc.identifier.emailChan, YS:yschan@hkucc.hku.hken_US
dc.identifier.authorityChan, YS=rp00318en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0025922355en_US
dc.identifier.issue481en_US
dc.identifier.spage31en_US
dc.identifier.epage33en_US
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridChan, YS=7403676627en_US
dc.identifier.scopusauthoridChen, CW=7501962741en_US
dc.identifier.scopusauthoridCheung, YM=24521372000en_US

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