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dc.contributor.supervisor Whishaw, Ian Q.
dc.contributor.author Karl, Jenni M.
dc.date.accessioned 2014-10-03T20:13:03Z
dc.date.available 2014-10-03T20:13:03Z
dc.date.issued 2014-10-03
dc.identifier.uri https://hdl.handle.net/10133/3504
dc.description.abstract Prehension is proposed to consist of two movements mediated by separate neural pathways – a Reach transports the hand to the target while a Grasp shapes the hand for target purchase – but under vision the two movements appear as a seemless act. The purpose of the present thesis was to examine prehension under conditions of limited visual feedback. Removing vision in adults caused prehension to decompose into an open handed Reach followed by a haptically mediated Grasp, suggesting that haptics also access the Reach and Grasp pathways. That Grasp, but not Reach, formation is equally accurate under haptic versus visual control indicates that the sensory control of the two movements can be differentiated. Finally, young infants perform haptic Reach and Grasp movements before integrating them together under vision. These results suggest that the Reach and the Grasp, with their requisite neural pathways, originate under haptic control with secondary access by vision. en_US
dc.description.sponsorship AIHS, NSERC en_US
dc.language.iso en_CA en_US
dc.publisher Lethbridge, Alta. : University of Lethbridge, Dept. of Neuroscience.
dc.relation.ispartofseries Thesis (University of Lethbridge. Faculty of Arts and Science)
dc.subject haptic control
dc.subject neural pathways
dc.subject prehension
dc.subject Reach and Grasp
dc.subject visual control
dc.subject visual feedback
dc.title Haptic foundations for visually guided action en_US
dc.type Thesis en_US
dc.publisher.faculty Arts and Science en_US
dc.publisher.department Neuroscience en_US
dc.degree.level Ph.D en_US
dc.proquest.subject 0317 en_US
dc.proquest.subject 0989 en_US
dc.proquest.subject 0384 en_US
dc.proquestyes Yes en_US


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