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Article: Visual Feedback Control of Hand Movements

TitleVisual Feedback Control of Hand Movements
Authors
Issue Date2004
PublisherSociety for Neuroscience. The Journal's web site is located at http://www.jneurosci.org
Citation
Journal Of Neuroscience, 2004, v. 24 n. 13, p. 3223-3234 How to Cite?
AbstractWe investigated what visual information contributes to on-line control of hand movements. It has been suggested that motion information predominates early in movements but that position information predominates for endpoint control. We used a perturbation method to determine the relative contributions of motion and position information to feedback control. Subjects reached to touch targets in a dynamic virtual environment in which subjects viewed a moving virtual fingertip in place of their own finger. On some trials, we perturbed the virtual fingertip while it moved behind an occluder. Subjects responded to perturbations that selectively altered either motion or position information, indicating that both contribute to feedback control. Responses to perturbations that changed both motion and position information were consistent with superimposed motion-based and position-based control. Results were well fit by a control model that optimally integrates noisy, delayed sensory feedback about both motion and position to estimate hand state.
Persistent Identifierhttp://hdl.handle.net/10722/168983
ISSN
2015 Impact Factor: 5.924
2015 SCImago Journal Rankings: 5.105
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorSaunders, JAen_US
dc.contributor.authorKnill, DCen_US
dc.date.accessioned2012-10-08T03:40:29Z-
dc.date.available2012-10-08T03:40:29Z-
dc.date.issued2004en_US
dc.identifier.citationJournal Of Neuroscience, 2004, v. 24 n. 13, p. 3223-3234en_US
dc.identifier.issn0270-6474en_US
dc.identifier.urihttp://hdl.handle.net/10722/168983-
dc.description.abstractWe investigated what visual information contributes to on-line control of hand movements. It has been suggested that motion information predominates early in movements but that position information predominates for endpoint control. We used a perturbation method to determine the relative contributions of motion and position information to feedback control. Subjects reached to touch targets in a dynamic virtual environment in which subjects viewed a moving virtual fingertip in place of their own finger. On some trials, we perturbed the virtual fingertip while it moved behind an occluder. Subjects responded to perturbations that selectively altered either motion or position information, indicating that both contribute to feedback control. Responses to perturbations that changed both motion and position information were consistent with superimposed motion-based and position-based control. Results were well fit by a control model that optimally integrates noisy, delayed sensory feedback about both motion and position to estimate hand state.en_US
dc.languageengen_US
dc.publisherSociety for Neuroscience. The Journal's web site is located at http://www.jneurosci.orgen_US
dc.relation.ispartofJournal of Neuroscienceen_US
dc.subject.meshBiomechanicsen_US
dc.subject.meshComputer Simulationen_US
dc.subject.meshFeedback - Physiologyen_US
dc.subject.meshHand - Physiologyen_US
dc.subject.meshHumansen_US
dc.subject.meshModels, Neurologicalen_US
dc.subject.meshMovement - Physiologyen_US
dc.subject.meshNeural Pathways - Physiologyen_US
dc.subject.meshPhotic Stimulation - Methodsen_US
dc.subject.meshPsychomotor Performance - Physiologyen_US
dc.subject.meshReference Valuesen_US
dc.titleVisual Feedback Control of Hand Movementsen_US
dc.typeArticleen_US
dc.identifier.emailSaunders, JA:jsaun@hkucc.hku.hken_US
dc.identifier.authoritySaunders, JA=rp00638en_US
dc.description.naturelink_to_OA_fulltexten_US
dc.identifier.doi10.1523/JNEUROSCI.4319-03.2004en_US
dc.identifier.pmid15056701-
dc.identifier.scopuseid_2-s2.0-1842506562en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-1842506562&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume24en_US
dc.identifier.issue13en_US
dc.identifier.spage3223en_US
dc.identifier.epage3234en_US
dc.identifier.isiWOS:000220596400008-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridSaunders, JA=7402341514en_US
dc.identifier.scopusauthoridKnill, DC=7003848696en_US
dc.identifier.citeulike264338-

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