{"id":{"repo_id":"lethbridge","oai_identifier":"oai:opus.uleth.ca:10133/4949"},"canonical_url":"https://search.dev.ndltd.org/etd/lethbridge/oai:opus.uleth.ca:10133/4949","repository":{"repo_id":"lethbridge","name":"University of Lethbridge","base_url":"https://opus.uleth.ca/server/oai/request"},"display":{"title":"On action intent : behavioural correlates of reach-to-grasp actions","abstract":"Evidence from electrophysiology suggests that non-human primates produce reach-to-grasp movements based on their functional end-goal rather than on the biomechanical requirements of the movement. However, the invasiveness of direct-electrical stimulation and single-neuron recording studies have precluded analogous investigations in humans. In this thesis, I present behavioural evidence in the form of kinematic analyses suggesting that the cortical circuits responsible for reach-to-grasp actions in humans are organized in a similar fashion. Grasp-to-eat movements are produced with significantly smaller and more precise maximum grip apertures (MGAs) than are grasp-to-place movements directed toward the same objects, despite near identical mechanical requirements of the two subsequent (i.e., -eat and –place) movements. Furthermore, the fact that this distinction is limited to right-handed movements suggests that the system governing reach-to-grasp movements is asymmetric. I posit that this asymmetry may be responsible, at least in part, for the preponderance of right-hand dominance among the global population.","abstract_html":"Evidence from electrophysiology suggests that non-human primates produce reach-to-grasp movements based on their functional end-goal rather than on the biomechanical requirements of the movement. However, the invasiveness of direct-electrical stimulation and single-neuron recording studies have precluded analogous investigations in humans. In this thesis, I present behavioural evidence in the form of kinematic analyses suggesting that the cortical circuits responsible for reach-to-grasp actions in humans are organized in a similar fashion. Grasp-to-eat movements are produced with significantly smaller and more precise maximum grip apertures (MGAs) than are grasp-to-place movements directed toward the same objects, despite near identical mechanical requirements of the two subsequent (i.e., -eat and –place) movements. Furthermore, the fact that this distinction is limited to right-handed movements suggests that the system governing reach-to-grasp movements is asymmetric. I posit that this asymmetry may be responsible, at least in part, for the preponderance of right-hand dominance among the global population.","abstract_has_math":false,"creators":["Flindall, Jason","University of Lethbridge. Faculty of Arts and Science"],"institution":null,"degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2017,"date_issued":"2017","date_published":"2017","updated_at":"2026-07-27T20:02:14Z","subjects":["kinematics","neuroscience","behaviour","grasp-to-eat","reach-to-grasp","asymmetries"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["hdl:10133/4949"],"render_values":[{"text":"hdl:10133/4949","href":null,"code":true}]}]},"links":{"outbound_url":null,"outbound_label":null,"outbound_source":null},"metadata_groups":[{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.issued","label":"Date","values":["2017"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["kinematics","neuroscience","behaviour","grasp-to-eat","reach-to-grasp","asymmetries"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["hdl:10133/4949"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.other","label":"Dc Description Other","values":["Evidence from electrophysiology suggests that non-human primates produce reach-to-grasp movements based on their functional end-goal rather than on the biomechanical requirements of the movement. However, the invasiveness of direct-electrical stimulation and single-neuron recording studies have precluded analogous investigations in humans. In this thesis, I present behavioural evidence in the form of kinematic analyses suggesting that the cortical circuits responsible for reach-to-grasp actions in humans are organized in a similar fashion. Grasp-to-eat movements are produced with significantly smaller and more precise maximum grip apertures (MGAs) than are grasp-to-place movements directed toward the same objects, despite near identical mechanical requirements of the two subsequent (i.e., -eat and –place) movements. Furthermore, the fact that this distinction is limited to right-handed movements suggests that the system governing reach-to-grasp movements is asymmetric. I posit that this asymmetry may be responsible, at least in part, for the preponderance of right-hand dominance among the global population."]},{"key":"dc:title","label":"Title","values":["On action intent : behavioural correlates of reach-to-grasp actions"]}]}],"canonical_facts":{"dc:date.issued":["2017"],"dc:description.other":["Evidence from electrophysiology suggests that non-human primates produce reach-to-grasp movements based on their functional end-goal rather than on the biomechanical requirements of the movement. However, the invasiveness of direct-electrical stimulation and single-neuron recording studies have precluded analogous investigations in humans. In this thesis, I present behavioural evidence in the form of kinematic analyses suggesting that the cortical circuits responsible for reach-to-grasp actions in humans are organized in a similar fashion. Grasp-to-eat movements are produced with significantly smaller and more precise maximum grip apertures (MGAs) than are grasp-to-place movements directed toward the same objects, despite near identical mechanical requirements of the two subsequent (i.e., -eat and –place) movements. Furthermore, the fact that this distinction is limited to right-handed movements suggests that the system governing reach-to-grasp movements is asymmetric. I posit that this asymmetry may be responsible, at least in part, for the preponderance of right-hand dominance among the global population."],"dc:identifier":["hdl:10133/4949"],"dc:subject":["kinematics","neuroscience","behaviour","grasp-to-eat","reach-to-grasp","asymmetries"],"dc:title":["On action intent : behavioural correlates of reach-to-grasp actions"],"dc:type":["Thesis"]},"updated_at":"2026-07-27T20:02:14Z"}