Is it necessary to differentiate tinnitus from auditory hallucination in schizophrenic patients?

Although the definitions of subjective tinnitus and auditory hallucination are very similar, the origins and underlying causes of each symptom clearly differ. This study examined whether the differentiation of tinnitus from auditory hallucination is necessary for the proper management of these sympt...

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Bibliographic Details
Published in:Journal of laryngology and otology 2005-05, Vol.119 (5), p.352-355
Main Author: Nam, Eui-Cheol
Format: Article
Language:English
Subjects:
(RF) Otorhinolaryngology
Adult
Audiometry, Pure-Tone - methods
Auditory Perception
Auditory Perception - physiology
Auditory Threshold
Biological and medical sciences
Brain Stem - physiopathology
Diagnosis, Differential
Ear, auditive nerve, cochleovestibular tract, facial nerve: diseases, semeiology
Female
Hallucinations
Hallucinations - diagnosis
Hallucinations - physiopathology
Hearing Loss
Humans
Male
Medical sciences
Middle Aged
Mosquitoes
Non tumoral diseases
Otology
Otorhinolaryngology. Stomatology
Patients
Psychotic Disorders
Schizophrenia
Schizophrenia - complications
Schizophrenia - physiopathology
Sound
Tinnitus
Tinnitus - diagnosis
Tinnitus - physiopathology
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Summary:Although the definitions of subjective tinnitus and auditory hallucination are very similar, the origins and underlying causes of each symptom clearly differ. This study examined whether the differentiation of tinnitus from auditory hallucination is necessary for the proper management of these symptoms in schizophrenic patients. We investigated the characteristics of auditory hallucinations in 15 schizophrenic patients, and measured their pure-tone hearing levels and auditory brainstem responses (ABR). The average hearing level was 20.6 ± 16.2 dB, with a mild decrease at high frequencies. We classified the patients into three groups: pure hallucination, tinnitus, and hallucination plus tinnitus. Eight patients (53.3 per cent) complained of pure-hallucination and only one of them had a mild hearing loss. Hearing deficits were observed in six of seven tinnitus patients. Abnormal findings of ABR were found only in the pure-hallucination group. The results suggest that tinnitus should be differentiated fromauditory hallucination in the evaluation of schizophrenic patients.
ISSN:0022-2151
1748-5460
DOI:10.1258/0022215053945796