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- Title
SPEECH AUDIOMETRY TESTS AND THE RANDOM GAP DETECTION TEST IN THE PROGNOSIS OF HEARING AID EFFICIENCY.
- Authors
Boboshko, Maria; Garbaruk, Ekaterina; Maltseva, Natalia; Zhilinskaya, Ekaterina
- Abstract
OBJECTIVE: to study the hearing aid (HA) efficiency depending on the results of the binaural fusion and the random gap detection test. MATERIALS and METHODS: 20 patients with binaural symmetrical chronic sensorineural hearing loss, HA users were examined. Binaural fusion and the random gap detection test (RGDT) (Keith, 2000) were performed as well as standard tests. Speech audiometry in free sound field was used to evaluate the HA efficiency: polysyllable words both in quiet and in noise were presented, at first without HA and then with it. RESULTS: Considering the speech intelligibility in the binaural fusion test the listeners were divided into 3 groups: 35-50%; 55-75%; 8095%. Strong positive correlation between speech intelligibility in the binaural fusion test and in free-field speech tests was revealed. Mostly this correlation was shown while using HA and presenting speech in noise (r>0.463-0.684). Based on the RGDT results 2 groups of listeners were formed: with normal and poor temporal discrimination thresholds. The increase of speech intelligibility with HA in the first group was found to be higher than in the second group (p<0,05). Thus the HA efficiency in patients with normal RGDT results was proved to be higher, especially in the background noise. CONCLUSION: The HA efficiency can be prognosticated on the basis of the binaural fusion test and the RGDT results.
- Subjects
SPEECH audiometry; HEARING disorders; BINAURAL hearing aids; HEARING impaired; SYLLABLE (Grammar); INTELLIGIBILITY of speech; PROGNOSIS
- Publication
Journal of International Advanced Otology, 2015, Vol 11, p76
- ISSN
1308-7649
- Publication type
Article