Dissociations within neglect-related reading impairments: egocentric and allocentric neglect dyslexia

Consistently lateralized reading errors are commonly understood as side-effects of visuospatial neglect impairment. There is however a qualitative difference between systematically omitting full words presented on one side of passages (egocentric neglect dyslexia) and lateralized errors when reading...

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Main Authors: Moore, MJ, Shalev, N, Gillebert, CR, Demeyere, N
Format: Journal article
Language:English
Published: Routledge 2020
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author Moore, MJ
Shalev, N
Gillebert, CR
Demeyere, N
author_facet Moore, MJ
Shalev, N
Gillebert, CR
Demeyere, N
author_sort Moore, MJ
collection OXFORD
description Consistently lateralized reading errors are commonly understood as side-effects of visuospatial neglect impairment. There is however a qualitative difference between systematically omitting full words presented on one side of passages (egocentric neglect dyslexia) and lateralized errors when reading single words (allocentric neglect dyslexia). This study aims to investigate the relationship between egocentric and allocentric neglect dyslexia and visuospatial neglect.<br></br> 1209 stroke survivors completed standardized reading and cancellation tests. Stringent criteria identified unambiguous cases of allocentric neglect dyslexia (N = 17) and egocentric neglect dyslexia (N = 35). These conditions were found to be doubly dissociated with all cases of egocentric and allocentric neglect dyslexia occurring independently. Allocentric neglect dyslexia was dissociated from both egocentric and allocentric visuospatial neglect. Additionally, two cases of allocentric neglect dyslexia which co-occurred with oppositely lateralized domain-general visuospatial neglect were identified. Conversely, all cases of egocentric neglect dyslexia were found in the presence of domain-general visuospatial neglect. These findings suggest that allocentric neglect dyslexia cannot be fully understood as a consequence of visuospatial neglect. In contrast, we found no evidence for a dissociation between egocentric neglect dyslexia and visuospatial neglect. These findings highlight the need for new, neglect dyslexia specific rehabilitation strategies to be designed and tested.
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spelling oxford-uuid:022a8c57-22e8-479f-82ec-e0c347851a5b2023-01-20T16:41:01ZDissociations within neglect-related reading impairments: egocentric and allocentric neglect dyslexiaJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:022a8c57-22e8-479f-82ec-e0c347851a5bEnglishSymplectic ElementsRoutledge2020Moore, MJShalev, NGillebert, CRDemeyere, NConsistently lateralized reading errors are commonly understood as side-effects of visuospatial neglect impairment. There is however a qualitative difference between systematically omitting full words presented on one side of passages (egocentric neglect dyslexia) and lateralized errors when reading single words (allocentric neglect dyslexia). This study aims to investigate the relationship between egocentric and allocentric neglect dyslexia and visuospatial neglect.<br></br> 1209 stroke survivors completed standardized reading and cancellation tests. Stringent criteria identified unambiguous cases of allocentric neglect dyslexia (N = 17) and egocentric neglect dyslexia (N = 35). These conditions were found to be doubly dissociated with all cases of egocentric and allocentric neglect dyslexia occurring independently. Allocentric neglect dyslexia was dissociated from both egocentric and allocentric visuospatial neglect. Additionally, two cases of allocentric neglect dyslexia which co-occurred with oppositely lateralized domain-general visuospatial neglect were identified. Conversely, all cases of egocentric neglect dyslexia were found in the presence of domain-general visuospatial neglect. These findings suggest that allocentric neglect dyslexia cannot be fully understood as a consequence of visuospatial neglect. In contrast, we found no evidence for a dissociation between egocentric neglect dyslexia and visuospatial neglect. These findings highlight the need for new, neglect dyslexia specific rehabilitation strategies to be designed and tested.
spellingShingle Moore, MJ
Shalev, N
Gillebert, CR
Demeyere, N
Dissociations within neglect-related reading impairments: egocentric and allocentric neglect dyslexia
title Dissociations within neglect-related reading impairments: egocentric and allocentric neglect dyslexia
title_full Dissociations within neglect-related reading impairments: egocentric and allocentric neglect dyslexia
title_fullStr Dissociations within neglect-related reading impairments: egocentric and allocentric neglect dyslexia
title_full_unstemmed Dissociations within neglect-related reading impairments: egocentric and allocentric neglect dyslexia
title_short Dissociations within neglect-related reading impairments: egocentric and allocentric neglect dyslexia
title_sort dissociations within neglect related reading impairments egocentric and allocentric neglect dyslexia
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AT shalevn dissociationswithinneglectrelatedreadingimpairmentsegocentricandallocentricneglectdyslexia
AT gillebertcr dissociationswithinneglectrelatedreadingimpairmentsegocentricandallocentricneglectdyslexia
AT demeyeren dissociationswithinneglectrelatedreadingimpairmentsegocentricandallocentricneglectdyslexia