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Knights, Ethan, McIntosh, Robert D., Ford, Catherine 
ORCID: https://orcid.org/0000-0002-8646-9402, Buckingham, Gavin and Rossit, Stéphanie ORCID: https://orcid.org/0000-0001-6640-2289
(2024)
Peripheral and bimanual reaching in a stroke survivor with left visual neglect and extinction.
Neuropsychologia, 201.
ISSN 0028-3932
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Abstract
Whether attentional deficits are accompanied by visuomotor impairments following posterior parietal lesions has been debated for quite some time. This single-case study investigated reaching in a stroke survivor (E.B.) with left visual neglect and visual extinction following right temporo-parietal-frontal strokes. Unlike most neglect patients, E.B. did not present left hemiparesis, homonymous hemianopia nor show evidence of motor neglect or extinction allowing us to examine, for the first time, if lateralised attentional deficits co-occur with deficits in peripheral and bimanual reaching. First, we found a classic optic ataxia field effect: E.B.’s accuracy was impaired when reaching to peripheral targets in her neglected left visual field (regardless of the hand used). Second, we found a larger bimanual cost for movement time in E.B. than controls when both hands reached to incongruent locations. E.B.’s visuomotor profile is similar to the one of patients with optic ataxia showing that attentional deficits are accompanied by visuomotor deficits in the affected field.
| Item Type: | Article |
|---|---|
| Additional Information: | Data availability statement: Processed and analysed kinematic data are available on the Open Science Framework (https://osf.io/q8nj6/) along with analysis code hosted on GitHub (https://github.com/ethanknights/neglect). |
| Uncontrolled Keywords: | bimanual,optic ataxia,peripheral vision,visual extinction,visual neglect,experimental and cognitive psychology,cognitive neuroscience,behavioral neuroscience,3* ,/dk/atira/pure/subjectarea/asjc/3200/3205 |
| Faculty \ School: | Faculty of Social Sciences > School of Psychology Faculty of Medicine and Health Sciences > Norwich Medical School |
| UEA Research Groups: | Faculty of Medicine and Health Sciences > Research Centres > Lifespan Health Faculty of Social Sciences > Research Groups > Cognition, Action and Perception |
| Related URLs: | |
| Depositing User: | LivePure Connector |
| Date Deposited: | 07 May 2024 12:31 |
| Last Modified: | 16 Dec 2024 01:41 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/95085 |
| DOI: | 10.1016/j.neuropsychologia.2024.108901 |
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