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Impaired Comprehension of Speed Verbs in Parkinson's Disease

Speed, LJ; van Dam, WO; Hirath, P; Vigliocco, G; Desai, RH; (2017) Impaired Comprehension of Speed Verbs in Parkinson's Disease. Journal of the International Neuropsychological Society , 23 (5) pp. 412-420. 10.1017/S1355617717000248. Green open access

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Abstract

Objectives: A wealth of studies provide evidence for action simulation during language comprehension. Recent research suggests such action simulations might be sensitive to fine-grained information, such as speed. Here, we present a crucial test for action simulation of speed in language by assessing speed comprehension in patients with Parkinson’s disease (PD). Based on the patients’ motor deficits, we hypothesized that the speed of motion described in language would modulate their performance in semantic tasks. Specifically, they would have more difficulty processing language about relatively fast speed than language about slow speed. Methods: We conducted a semantic similarity judgment task on fast and slow action verbs in patients with PD and age-matched healthy controls. Participants had to decide which of two verbs most closely matched a target word. Results: Compared to controls, PD patients were slower making judgments about fast action verbs, but not for judgments about slow action verbs, suggesting impairment in processing language about fast action. Moreover, this impairment was specific to verbs describing fast action performed with the hand. Conclusions: Problems moving quickly lead to difficulties comprehending language about moving quickly. This study provides evidence that speed is an important part of action representations.

Type: Article
Title: Impaired Comprehension of Speed Verbs in Parkinson's Disease
Open access status: An open access version is available from UCL Discovery
DOI: 10.1017/S1355617717000248
Publisher version: http://doi.org/10.1017/S1355617717000248
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Science & Technology, Social Sciences, Life Sciences & Biomedicine, Clinical Neurology, Neurosciences, Psychiatry, Psychology, Neurosciences & Neurology, Embodiment, Parkinson's disease, Action semantics, Speed, EXECUTIVE FUNCTION IMPAIRMENT, EMBODIED LANGUAGE, ACTION SEMANTICS, MOTOR SYSTEM, REPRESENTATION, MOVEMENTS, DEMENTIA, MEMORY, WORDS
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > Experimental Psychology
URI: https://discovery.ucl.ac.uk/id/eprint/1555076
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