Article (Scientific journals)
Visual neglect: Is there a relationship between impaired spatial working memory and re-cancellation?
Wansard, Murielle; Meulemans, Thierry; Gillet, Sophie et al.
2014In Experimental Brain Research, 232 (10), p. 3333-3343
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Keywords :
Visual neglect; Spatial working memory; Re-cancellation
Abstract :
[en] In visual search tasks, neglect patients tend to explore and repeatedly re-cancel stimuli on the ipsilesional side, as if they did not realize that they had previously examined the rightward locations favoured by their lateral bias. The aim of this study was to explore the hypothesis that a spatial working memory deficit explains these ipsilesional re-cancellation errors in neglect patients. For the first time, we evaluated spatial working memory and re-cancellation through separate and independent tasks in a group of patients with right hemisphere damage and a diagnosis of left neglect. Results showed impaired spatial working memory in neglect patients. Compared to the control group, neglect patients cancelled fewer targets and made more re-cancellations both on the left side and on the right side. The spatial working memory deficit appears to be related to re-cancellations, but only for some neglect patients. Alternative interpretations of re-exploration of space are discussed.
Disciplines :
Theoretical & cognitive psychology
Author, co-author :
Wansard, Murielle ;  Université de Liège - ULiège > Département de Psychologie : cognition et comportement > Neuropsychologie
Meulemans, Thierry ;  Université de Liège - ULiège > Doyen de la Faculté de Psychologie et des sc. de l'éducation
Gillet, Sophie ;  Université de Liège - ULiège > Département de Psychologie : cognition et comportement > Neuropsychologie du langage et des apprentissages
Segovia-Román, Fermín ;  Université de Liège - ULiège > Centre de recherches du cyclotron
Bastin, Christine  ;  Université de Liège - ULiège > Département des sciences cliniques > Neuroimagerie des troubles de la mémoire et révalid. cogn.
Toba, Monica N.
Bartolomeo, Paolo
Language :
English
Title :
Visual neglect: Is there a relationship between impaired spatial working memory and re-cancellation?
Publication date :
2014
Journal title :
Experimental Brain Research
ISSN :
0014-4819
eISSN :
1432-1106
Publisher :
Springer Verlag, Berlin, Germany
Volume :
232
Issue :
10
Pages :
3333-3343
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 26 July 2014

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