{"id":{"repo_id":"uwo","oai_identifier":"oai:uwo.scholaris.ca:20.500.14721/36485"},"canonical_url":"https://search.dev.ndltd.org/etd/uwo/oai:uwo.scholaris.ca:20.500.14721/36485","repository":{"repo_id":"uwo","name":"Western University","base_url":"https://uwo.scholaris.ca/server/oai/request"},"display":{"title":"Parkinson's Patients' Upper and Lower Limb Motor Impairments Differentially Influence Action Verb Processing","abstract":"Theories of grounded cognition emphasize the role of sensorimotor simulation in conceptual knowledge. With regard to action concepts, the motor system is hypothesized to play a central role in their representation and processing. The present study investigates whether patients with Parkinson’s disease (PD) who have greater upper versus greater lower limb impairments show different patterns of performance when processing action verbs. Patients and matched controls made action decisions on upper-limb (reach), lower-limb (kick), and psych verbs (think). The most important result was an interaction between PD dominance (PD upper vs. lower limb motor impairments) and verb type (upper- vs. lower-limb verbs). PD patients with greater upper limb impairment were slower in processing upper-limb versus lower-limb verbs, whereas those with greater lower limb impairment performed similarly on these verb types. The results support a relatively fine-grained functional role of the motor system in the conceptual representation of action verbs.","abstract_html":"Theories of grounded cognition emphasize the role of sensorimotor simulation in conceptual knowledge. With regard to action concepts, the motor system is hypothesized to play a central role in their representation and processing. The present study investigates whether patients with Parkinson’s disease (PD) who have greater upper versus greater lower limb impairments show different patterns of performance when processing action verbs. Patients and matched controls made action decisions on upper-limb (reach), lower-limb (kick), and psych verbs (think). The most important result was an interaction between PD dominance (PD upper vs. lower limb motor impairments) and verb type (upper- vs. lower-limb verbs). PD patients with greater upper limb impairment were slower in processing upper-limb versus lower-limb verbs, whereas those with greater lower limb impairment performed similarly on these verb types. The results support a relatively fine-grained functional role of the motor system in the conceptual representation of action verbs.","abstract_has_math":false,"creators":["Nguyen, Peter"],"institution":"The University of Western Ontario","degree_name":"M Sc","degree_level":null,"degree_discipline":"Neuroscience","degree_department":null,"school":null,"contributors":[],"advisors":["Ken McRae"],"committee_chairs":[],"committee_members":[],"year":2013,"date_issued":"2013-08-20","date_published":"2013-08-20","updated_at":"2026-07-27T21:56:01Z","subjects":["Grounded cognition","Action verbs","Motor system","Parkinson’s disease"],"languages":["en_ca"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/20.500.14721/36485","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Ken McRae"]},{"key":"dc:creator","label":"Author","values":["Nguyen, Peter"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2025-07-10T21:22:11Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2025-07-10T21:22:11Z"]},{"key":"dc:date.issued","label":"Date","values":["2013-08-20"]},{"key":"dc:publisher","label":"Institution","values":["The University of Western Ontario"]},{"key":"dc:type","label":"Dc Type","values":["thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Neuroscience"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M Sc"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Grounded cognition","Action verbs","Motor system","Parkinson’s disease"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en_ca"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://hdl.handle.net/20.500.14721/36485"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["The thesis cover page in the PDF document includes references to Western University’s previous institutional repository platform, known as Scholarship@Western, and links to that platform (beginning with ir.lib.uwo.ca). In citing or referring to this thesis, use the DOI or handle from this page instead. Sample citation: Author name, \"Thesis title.\" (Year). Western University Open Repository. https://doi.org/10.71858/123456."]},{"key":"dc:description.abstract","label":"Abstract","values":["Theories of grounded cognition emphasize the role of sensorimotor simulation in conceptual knowledge. With regard to action concepts, the motor system is hypothesized to play a central role in their representation and processing. The present study investigates whether patients with Parkinson’s disease (PD) who have greater upper versus greater lower limb impairments show different patterns of performance when processing action verbs. Patients and matched controls made action decisions on upper-limb (reach), lower-limb (kick), and psych verbs (think). The most important result was an interaction between PD dominance (PD upper vs. lower limb motor impairments) and verb type (upper- vs. lower-limb verbs). PD patients with greater upper limb impairment were slower in processing upper-limb versus lower-limb verbs, whereas those with greater lower limb impairment performed similarly on these verb types. The results support a relatively fine-grained functional role of the motor system in the conceptual representation of action verbs."]},{"key":"dc:title","label":"Title","values":["Parkinson's Patients' Upper and Lower Limb Motor Impairments Differentially Influence Action Verb Processing"]}]}],"canonical_facts":{"dc:contributor.advisor":["Ken McRae"],"dc:creator":["Nguyen, Peter"],"dc:date.accessioned":["2025-07-10T21:22:11Z"],"dc:date.available":["2025-07-10T21:22:11Z"],"dc:date.issued":["2013-08-20"],"dc:description":["The thesis cover page in the PDF document includes references to Western University’s previous institutional repository platform, known as Scholarship@Western, and links to that platform (beginning with ir.lib.uwo.ca). In citing or referring to this thesis, use the DOI or handle from this page instead. Sample citation: Author name, \"Thesis title.\" (Year). Western University Open Repository. https://doi.org/10.71858/123456."],"dc:description.abstract":["Theories of grounded cognition emphasize the role of sensorimotor simulation in conceptual knowledge. With regard to action concepts, the motor system is hypothesized to play a central role in their representation and processing. The present study investigates whether patients with Parkinson’s disease (PD) who have greater upper versus greater lower limb impairments show different patterns of performance when processing action verbs. Patients and matched controls made action decisions on upper-limb (reach), lower-limb (kick), and psych verbs (think). The most important result was an interaction between PD dominance (PD upper vs. lower limb motor impairments) and verb type (upper- vs. lower-limb verbs). PD patients with greater upper limb impairment were slower in processing upper-limb versus lower-limb verbs, whereas those with greater lower limb impairment performed similarly on these verb types. The results support a relatively fine-grained functional role of the motor system in the conceptual representation of action verbs."],"dc:identifier.uri":["https://hdl.handle.net/20.500.14721/36485"],"dc:language.iso":["en_ca"],"dc:publisher":["The University of Western Ontario"],"dc:subject":["Grounded cognition","Action verbs","Motor system","Parkinson’s disease"],"dc:title":["Parkinson's Patients' Upper and Lower Limb Motor Impairments Differentially Influence Action Verb Processing"],"dc:type":["thesis"],"thesis:degree_discipline":["Neuroscience"],"thesis:degree_name":["M Sc"]},"updated_at":"2026-07-27T21:56:01Z"}