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Titolo:
IMPAIRED BRAIN PROCESSING IN NOISE-INDUCED TINNITUS PATIENTS AS MEASURED BY AUDITORY AND VISUAL EVENT-RELATED POTENTIALS
Autore:
ATTIAS J; FURMAN V; SHEMESH Z; BRESLOFF I;
Indirizzi:
SCHNEIDER CHILDRENS MED CTR ISRAEL,14 KAPLAN ST IL-49202 PETAH TIQWA ISRAEL CHAIM SHEBA MED CTR,ISRAEL DEF FORCES MED CORPS,INST NOISE HAZARDS RES & EVOKED POTENTIALS LAB TEL HASHOMER ISRAEL
Titolo Testata:
Ear and hearing
fascicolo: 4, volume: 17, anno: 1996,
pagine: 327 - 333
SICI:
0196-0202(1996)17:4<327:IBPINT>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
EVOKED MAGNETIC-FIELDS; INDUCED HEARING-LOSS; SELF-HYPNOSIS; ATTENTION; P300;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
28
Recensione:
Indirizzi per estratti:
Citazione:
J. Attias et al., "IMPAIRED BRAIN PROCESSING IN NOISE-INDUCED TINNITUS PATIENTS AS MEASURED BY AUDITORY AND VISUAL EVENT-RELATED POTENTIALS", Ear and hearing, 17(4), 1996, pp. 327-333

Abstract

Objectives: This study aimed to confirm that the brain processing of auditory stimuli in tinnitus patients is impaired (Attias, Urbach, Gold, & Shemesh, 1993). In addition, possible brain processing dysfunction in response to visual stimuli was assessed. Design: Auditory and visual event-related potentials (ERPs) and reaction times were recorded in response to a standard oddball target detection paradigm. The subjects consisted of 21 noise-induced chronic tinnitus patients and 21 age-and hearing-matched control subjects without tinnitus. Results: The tinnitus patients had significantly prolonged latencies for the auditory nontarget ERP components N1, N2, and P3 and for the auditory target ERP P3 component, The auditory P3 component was also significantly reduced in amplitude for both target and nontarget stimuli for the tinnitus patients. The visual P3 target and nontarget components were similarly significantly prolonged in latency for the tinnitus patients. Reaction times to both target and nontarget stimuli were significantly delayed for the tinnitus patients for both stimulus modalities. Conclusions: These findings point to a cortical information processing dysfunction in chronic tinnitus patients associated primarily with auditory stimuli. ERPs may provide an objective electrophysiologic tinnitus measure.

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Documento generato il 21/01/20 alle ore 07:11:07