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Titolo:
LATERAL AND RADIAL NEGLECT AS A FUNCTION OF SPATIAL POSITION - A CASE-STUDY
Autore:
HALLIGAN PW; MARSHALL JC;
Indirizzi:
RIVERMEAD REHABIL CTR,ABINGDON RD OXFORD OX1 4XD ENGLAND UNIV OXFORD,RADCLIFFE INFIRM,DEPT CLIN NEUROL OXFORD OX2 6HE ENGLAND
Titolo Testata:
Neuropsychologia
fascicolo: 12, volume: 33, anno: 1995,
pagine: 1697 - 1702
SICI:
0028-3932(1995)33:12<1697:LARNAA>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
SPACE;
Keywords:
VISUOSPATIAL NEGLECT; RIGHT HEMISPHERE; LINE BISECTION (HORIZONTAL AND RADIAL);
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
18
Recensione:
Indirizzi per estratti:
Citazione:
P.W. Halligan e J.C. Marshall, "LATERAL AND RADIAL NEGLECT AS A FUNCTION OF SPATIAL POSITION - A CASE-STUDY", Neuropsychologia, 33(12), 1995, pp. 1697-1702

Abstract

We report a case of severe visuo-spatial neglect after multiple right-hemisphere infarcts. Experiment 1 demonstrated that the magnitude of transection displacement for the bisection of horizontal lines could be modulated by the lateral position of those lines within peripersonalspace. As found in previous studies, neglect was attenuated when the true centre of the lines was to the right of the patient's midsagittalplane. In Experiment 2, radial lines were presented in left, middle, and right space. All bisections were placed too far from the body, butthe magnitude of this effect increased significantly from right to left space. In Experiment 3, horizontal lines were presented at three distances within peripersonal space; there was a small but reliable reduction of bisection error for the most distally-placed stimuli. These results suggest that unilateral right hemisphere damage can distort therepresentation of space (and action therein) more extensively than isimplied by the term left neglect.

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Documento generato il 29/01/20 alle ore 18:58:35