Neglect Patients Exhibit Egocentric or Allocentric Neglect for the Same Stimulus Contingent upon Task Demands

Abstract Hemispatial Neglect (HN) is a failure to allocate attention to a region of space opposite to where damage has occurred in the brain, usually the left side of space. It is widely documented that there are two types of neglect: egocentric neglect (neglect of information falling on the individ...

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Autores principales:	Louise-Ann Leyland, Hayward J. Godwin, Valerie Benson, Simon P. Liversedge
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d11ee8d9d2f64163a910dd6c2395c9b8
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spelling	oai:doaj.org-article:d11ee8d9d2f64163a910dd6c2395c9b82021-12-02T12:30:26ZNeglect Patients Exhibit Egocentric or Allocentric Neglect for the Same Stimulus Contingent upon Task Demands10.1038/s41598-017-02047-x2045-2322https://doaj.org/article/d11ee8d9d2f64163a910dd6c2395c9b82017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-02047-xhttps://doaj.org/toc/2045-2322Abstract Hemispatial Neglect (HN) is a failure to allocate attention to a region of space opposite to where damage has occurred in the brain, usually the left side of space. It is widely documented that there are two types of neglect: egocentric neglect (neglect of information falling on the individual’s left side) and allocentric neglect (neglect of the left side of each object, regardless of the position of that object in relation to the individual). We set out to address whether neglect presentation could be modified from egocentric to allocentric through manipulating the task demands whilst keeping the physical stimulus constant by measuring the eye movement behaviour of a single group of neglect patients engaged in two different tasks (copying and tracing). Eye movements and behavioural data demonstrated that patients exhibited symptoms consistent with egocentric neglect in one task (tracing), and allocentric neglect in another task (copying), suggesting that task requirements may influence the nature of the neglect symptoms produced by the same individual. Different task demands may be able to explain differential neglect symptoms in some individuals.Louise-Ann LeylandHayward J. GodwinValerie BensonSimon P. LiversedgeNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Louise-Ann Leyland Hayward J. Godwin Valerie Benson Simon P. Liversedge Neglect Patients Exhibit Egocentric or Allocentric Neglect for the Same Stimulus Contingent upon Task Demands
description	Abstract Hemispatial Neglect (HN) is a failure to allocate attention to a region of space opposite to where damage has occurred in the brain, usually the left side of space. It is widely documented that there are two types of neglect: egocentric neglect (neglect of information falling on the individual’s left side) and allocentric neglect (neglect of the left side of each object, regardless of the position of that object in relation to the individual). We set out to address whether neglect presentation could be modified from egocentric to allocentric through manipulating the task demands whilst keeping the physical stimulus constant by measuring the eye movement behaviour of a single group of neglect patients engaged in two different tasks (copying and tracing). Eye movements and behavioural data demonstrated that patients exhibited symptoms consistent with egocentric neglect in one task (tracing), and allocentric neglect in another task (copying), suggesting that task requirements may influence the nature of the neglect symptoms produced by the same individual. Different task demands may be able to explain differential neglect symptoms in some individuals.
format	article
author	Louise-Ann Leyland Hayward J. Godwin Valerie Benson Simon P. Liversedge
author_facet	Louise-Ann Leyland Hayward J. Godwin Valerie Benson Simon P. Liversedge
author_sort	Louise-Ann Leyland
title	Neglect Patients Exhibit Egocentric or Allocentric Neglect for the Same Stimulus Contingent upon Task Demands
title_short	Neglect Patients Exhibit Egocentric or Allocentric Neglect for the Same Stimulus Contingent upon Task Demands
title_full	Neglect Patients Exhibit Egocentric or Allocentric Neglect for the Same Stimulus Contingent upon Task Demands
title_fullStr	Neglect Patients Exhibit Egocentric or Allocentric Neglect for the Same Stimulus Contingent upon Task Demands
title_full_unstemmed	Neglect Patients Exhibit Egocentric or Allocentric Neglect for the Same Stimulus Contingent upon Task Demands
title_sort	neglect patients exhibit egocentric or allocentric neglect for the same stimulus contingent upon task demands
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/d11ee8d9d2f64163a910dd6c2395c9b8
work_keys_str_mv	AT louiseannleyland neglectpatientsexhibitegocentricorallocentricneglectforthesamestimuluscontingentupontaskdemands AT haywardjgodwin neglectpatientsexhibitegocentricorallocentricneglectforthesamestimuluscontingentupontaskdemands AT valeriebenson neglectpatientsexhibitegocentricorallocentricneglectforthesamestimuluscontingentupontaskdemands AT simonpliversedge neglectpatientsexhibitegocentricorallocentricneglectforthesamestimuluscontingentupontaskdemands
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Neglect Patients Exhibit Egocentric or Allocentric Neglect for the Same Stimulus Contingent upon Task Demands

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