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Titolo:
SEEING THE FOREST BUT ONLY HALF THE TREES
Autore:
MARSHALL JC; HALLIGAN PW;
Indirizzi:
UNIV OXFORD,RADCLIFFE INFIRM,DEPT CLIN NEUROL,NEUROPSYCHOL UNIT OXFORD OX2 6HE ENGLAND RIVERMEAD REHABIL CTR OXFORD OX1 4XD ENGLAND
Titolo Testata:
Nature
fascicolo: 6514, volume: 373, anno: 1995,
pagine: 521 - 523
SICI:
0028-0836(1995)373:6514<521:STFBOH>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
NEGLECT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
10
Recensione:
Indirizzi per estratti:
Citazione:
J.C. Marshall e P.W. Halligan, "SEEING THE FOREST BUT ONLY HALF THE TREES", Nature, 373(6514), 1995, pp. 521-523

Abstract

IN visuo-spatial neglect after right hemisphere damage, patients failovertly to notice and respond to stimuli on the side of space contralateral to lesion(1,2). Nonetheless, these neglected stimuli may covertly influence their performance in other tasks less direct than overt detection or identification(1). We report here a new type of dissociation between two forms of conscious perceptual awareness in a patient with left neglect. J.R. was shown hierarchical drawings in which a larger (global) form, such as a geometric figure or an alphabetic letter, is composed of smaller (local) forms (dots, circles, or letters). She gave accurate verbal reports of the global structure of these stimuli (Navon figures(3)), yet when required to cross out the smaller subfigures, she only cancelled those on the right of each global figure. Conscious perception of the whole does not automatically lead to visual awareness of all the parts thereof.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/01/20 alle ore 19:45:54