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Postural Coordination Patterns: Visual Rotation and Translation

dc.contributor.advisorJeka, Johnen_US
dc.contributor.authorZhang, Yuanfenen_US
dc.date.accessioned2006-06-14T05:41:45Z
dc.date.available2006-06-14T05:41:45Z
dc.date.issued2006-04-19en_US
dc.identifier.urihttp://hdl.handle.net/1903/3420
dc.description.abstractRecent studies have shown co-existing trunk-leg coordination patterns during quiet stance: in-phase and anti-phase for frequencies below and above 1 Hz, respectively. Two experiments investigated whether the nervous system assumes a multilinked internal model in sensory coupling? In the first experiment, we investigated the influence of the addition or removal of sensory information on these patterns. Trunk-leg coherence decreased with the addition of static vision and light touch, in the AP and ML directions, respectively, at frequencies below 1 Hz, suggesting the in-phase pattern may be more affected by neural control than the anti-phase pattern. In the second experiment, we compared translation of the visual field to a rotation relative to the ankle/hip. Gain and phase between the trunk/leg angles relative to the visual display showed only minor condition differences. The overall results suggest the nervous system adopts a simple control strategy of a single-link internal model at low frequencies.en_US
dc.format.extent577459 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.titlePostural Coordination Patterns: Visual Rotation and Translationen_US
dc.typeThesisen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.contributor.departmentKinesiologyen_US
dc.subject.pqcontrolledBiology, Neuroscienceen_US
dc.subject.pquncontrolledpostureen_US
dc.subject.pquncontrolledcoordination patternen_US
dc.subject.pquncontrolledlight touchen_US
dc.subject.pquncontrolledmoving roomen_US
dc.subject.pquncontrolledvisual rotationen_US
dc.subject.pquncontrolledvisual translationen_US


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