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Titolo:
Occipital activation by pattern recognition in the early blind using auditory substitution for vision
Autore:
Arno, P; De Volder, AG; Vanlierde, A; Wanet-Defalque, MC; Streel, E; Robert, A; Sanabria-Bohorquez, S; Veraart, C;
Indirizzi:
Univ Catholique Louvain, Neural Rehabil Engn Lab, B-1200 Brussels, BelgiumUniv Catholique Louvain Brussels Belgium B-1200 B-1200 Brussels, Belgium Univ Catholique Louvain, Sch Publ Hlth, B-1200 Brussels, Belgium Univ Catholique Louvain Brussels Belgium B-1200 B-1200 Brussels, Belgium Univ Catholique Louvain, Positron Tomog Unit, B-1348 Louvain, Belgium UnivCatholique Louvain Louvain Belgium B-1348 , B-1348 Louvain, Belgium
Titolo Testata:
NEUROIMAGE
fascicolo: 4, volume: 13, anno: 2001,
pagine: 632 - 645
SICI:
1053-8119(200104)13:4<632:OABPRI>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
POSITRON-EMISSION TOMOGRAPHY; AUTOMATED IMAGE REGISTRATION; HUMAN EXTRASTRIATE CORTEX; VISUAL-CORTEX; CONGENITALLY BLIND; SENSORY SUBSTITUTION; CEREBRAL HEMISPHERES; BRAIN POTENTIALS; MENTAL ROTATION; OBJECT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
51
Recensione:
Indirizzi per estratti:
Indirizzo: Arno, P Univ Catholique Louvain, Neural Rehabil Engn Lab, B-1200 Brussels,Belgium Univ Catholique Louvain Brussels Belgium B-1200 russels, Belgium
Citazione:
P. Arno et al., "Occipital activation by pattern recognition in the early blind using auditory substitution for vision", NEUROIMAGE, 13(4), 2001, pp. 632-645

Abstract

This PET study aimed at investigating the neural structures involved in pattern recognition in early blind subjects using sensory substitution equipment (SSE). Six early blind and six blindfolded sighted subjects were studied during three auditory processing tasks: a detection task with noise stimuli, a detection task with familiar sounds, and a pattern recognition task using the SSE. The results showed a differential activation pattern with theSSE as a function of the visual experience: in addition to the regions involved in the recognition process in sighted control subjects, occipital areas of early blind subjects were also activated. The occipital activation was more important when the early blind subjects used SSE than during the other auditory tasks. These results suggest that activity of the extrastriate visual cortex of early blind subjects can be modulated and bring additionalevidence that early visual deprivation leads to crossmodal cerebral reorganization. (C) 2001 Academic Press.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/01/20 alle ore 11:49:28