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Titolo:
Abnormal peripheral auditory asymmetry in schizophrenia
Autore:
Veuillet, E; Georgieff, N; Philibert, B; Dalery, J; Marie-Cardine, M; Collet, L;
Indirizzi:
Hop Edouard Herriot, CNRS, UMR 5020, F-69437 Lyon 03, France Hop Edouard Herriot Lyon France 03 RS, UMR 5020, F-69437 Lyon 03, France Inst Cognit Sci, F-69373 Lyon, France Inst Cognit Sci Lyon France F-69373 nst Cognit Sci, F-69373 Lyon, France CHS Le Vinatier, F-69500 Bron, France CHS Le Vinatier Bron France F-69500 HS Le Vinatier, F-69500 Bron, France Univ Lyon 1, JE 1882, F-69365 Lyon, France Univ Lyon 1 Lyon France F-69365 iv Lyon 1, JE 1882, F-69365 Lyon, France
Titolo Testata:
JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY
fascicolo: 1, volume: 70, anno: 2001,
pagine: 88 - 94
SICI:
0022-3050(200101)70:1<88:APAAIS>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
MEDIAL OLIVOCOCHLEAR SYSTEM; OTOACOUSTIC EMISSIONS; MISMATCH NEGATIVITY; CONTRALATERAL SUPPRESSION; CEREBRAL ASYMMETRY; COCHLEAR MECHANICS; PLANUM TEMPORALE; EFFERENT SYSTEM; STIMULATION; RESPONSES;
Keywords:
schizophrenia; auditory processing; asymmetry; medial olivocochlear efferent system; otoacoustic emissions; lateralisation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
70
Recensione:
Indirizzi per estratti:
Indirizzo: Veuillet, E Hop Edouard Herriot, CNRS, UMR 5020, Pavillon U,3 Pl Arsonval,F-69437 Lyon 03, France Hop Edouard Herriot Pavillon U,3 Pl Arsonval LyonFrance 03 e
Citazione:
E. Veuillet et al., "Abnormal peripheral auditory asymmetry in schizophrenia", J NE NE PSY, 70(1), 2001, pp. 88-94

Abstract

Objective-Auditory processing difficulties have been reported in schizophrenia. This study explores peripheral auditory function in patients with schizophrenia in whom certain early disturbances of auditory message filteringhave been found and may be associated with certain abnormalities which areparticularly localised in the left temporal lobe. Methods-Otoacoustic emissions, including click evoked and spontaneous emissions and measurements of functioning of the medial olivocochlear efferent system were obtained from 12 chronic schizophrenic patients and compared with normative data recorded from 12 normal controls. Results-Otoacoustic emission amplitudes and medial olivocochlear functioning were similar between the normal controls and schizophrenic patients; theschizophrenic patients did, however, differ from the normal controls in otoacoustic emission intensity and in medial olivocochlear asymmetry. A tendency to a higher number of spontaneous peaks, and a significantly higher click evoked otoacoustic emission response amplitude were found in the right ear compared with the left ear of schizophrenic patients. For the medial, olivocochlear system, whereas normal controls showed greater attenuation in the right than in the left ear, schizophrenic patients lacked such an asymmetry. Conclusion-In the absence of any attention task, the findings show disturbed peripheral lateralisation in schizophrenia of mechanisms involved in auditory information filtering. Such a lack of right ear advantage in medial olivocochlear functioning may thus be a peripheral reflection of central lateralisation anomalies.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/01/20 alle ore 09:51:11