Journal article
Ego-and allocentric visuospatial neglect: dissociations, prevalence and laterality in acute stroke
- Abstract:
- Objective: Visuospatial neglect is a neuropsychological condition commonly experienced after stroke, whereby a patient is unable to attend to stimuli on their contralesional side. We aimed to investigate whether egocentric and allocentric neglect are functionally dissociable and differ in prevalence and laterality in the early post-stroke period. Method: A consecutive sample of 366 acute stroke patients completed the Broken Hearts test from the Oxford Cognitive Screen. We evaluated the association between egocentric and allocentric neglect and contrasted the prevalence and severity of left-sided versus right-sided neglect. Results: Clinically, we found a double dissociation between ego- and allocentric neglect, with 50% of the neglect patients showing 'only' egocentric neglect and 25% 'only' allocentric neglect. Left-sided egocentric neglect was more prevalent and more severe than right-sided egocentric neglect, though right-sided neglect was still highly prevalent in the acute stroke sample (35%). Left-sided allocentric neglect was more severe but not more prevalent than right-sided allocentric neglect. At 6 months, in a representative subsample of 160 patients, we found neglect recovery rates to be 81% and 74% for egocentric and allocentric neglect respectively. Conclusion: Dissociable ego- and allocentric neglect symptoms support a heterogeneous account of visuospatial neglect, which was shown to be highly prevalent both for the left and for the right hemifield.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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- Files:
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(Preview, Accepted manuscript, pdf, 810.6KB, Terms of use)
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- Publisher copy:
- 10.1037/neu0000527
Authors
- Publisher:
- American Psychological Association
- Journal:
- Neuropsychology More from this journal
- Volume:
- 33
- Issue:
- 4
- Pages:
- 490-498
- Publication date:
- 2019-03-21
- Acceptance date:
- 2018-10-22
- DOI:
- EISSN:
-
1931-1559
- ISSN:
-
0894-4105
- Keywords:
- Pubs id:
-
pubs:938716
- UUID:
-
uuid:6e7179bd-c828-4a3d-939c-7fd4759168a4
- Local pid:
-
pubs:938716
- Deposit date:
-
2018-11-07
Terms of use
- Copyright holder:
- American Psychological Association
- Copyright date:
- 2019
- Notes:
- © American Psychological Association 2018. This article has been published under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/),which permits unrestricted use, distribution, and reproduction in any me-dium, provided the original author and source are credited. Copyright forthis article is retained by the author(s). Author(s) grant(s) the AmericanPsychological Association the exclusive right to publish the article andidentify itself as the original publisher
- Licence:
- CC Attribution (CC BY)
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