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Titolo:
Auditory peripersonal space in humans: a case of auditory-tactile extinction
Autore:
Ladavas, E; Pavani, F; Farne, A;
Indirizzi:
Univ Bologna, Dept Psychol, I-40127 Bologna, Italy Univ Bologna Bologna Italy I-40127 Dept Psychol, I-40127 Bologna, Italy Osped INRCA I Fraticini, Florence, Italy Osped INRCA I Fraticini Florence Italy RCA I Fraticini, Florence, Italy
Titolo Testata:
NEUROCASE
fascicolo: 2, volume: 7, anno: 2001,
pagine: 97 - 103
SICI:
1355-4794(2001)7:2<97:APSIHA>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Soggetto:
PREMOTOR CORTEX; MACAQUE; ORGANIZATION; AREA-6; MONKEY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Ladavas, E Univ Bologna, Dept Psychol, Viale Berti Pichat 5, I-40127 Bologna, Italy Univ Bologna Viale Berti Pichat 5 Bologna Italy I-40127 Italy
Citazione:
E. Ladavas et al., "Auditory peripersonal space in humans: a case of auditory-tactile extinction", NEUROCASE, 7(2), 2001, pp. 97-103

Abstract

Animal experiments have shown that the spatial correspondence between auditory and tactile receptive fields of ventral pre-motor neurons provides a map of auditory peripersonal space around the head. This allows neurons to localize a near sound with respect to the head. In the present study, we demonstrated the existence of an auditory peripersonal space around the head in humans. In a right-brain damaged patient with tactile extinction, a sounddelivered near the ipsilesional side of the head extinguished a tactile stimulus delivered to the contralesional side of the head (crossmodal auditory-tactile extinction). In contrast, when an auditory stimulus was presentedfar from the head, cross-modal extinction was dramatically reduced. This spatially specific cross-modal extinction was found only when a complex sound like a white noise burst was presented; pure tones did not produce spatially specific cross-modal extinction. These results show a high degree of functional similarity between the characteristics of the auditory peripersonal space representation in humans and monkeys. This similarity suggests thatanalogous physiological substrates might be responsible for coding this multisensory integrated representation of peripersonal space in human and non-human primates.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 31/03/20 alle ore 03:41:04