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022 _a2148-3817
100 _aUdhayakumar Ravirose
245 0 _a Evaluation of Differential Sensitivity for Frequency, Intensity, and Duration around the Tinnitus Frequency in Adults with Tonal Tinnitus
260 _c2019
270 _aDepartment of Audiology, All India Institute of Speech and Hearing, Karnataka, India.
300 _a253-256
490 _vVolume 15 Issue 2
520 _aObjectives: The perceptual characteristics of tinnitus are usually assessed by a matching procedure, where loudness and pitch of an external sound are matched to those of the tinnitus percept. The duration discrimination test (DDT), differential limen for intensity (DLI) and differential limen for frequency (DLF) are relatively simple psychoacoustic methods of measuring differential sensitivity.Materials and methods: 15 participants with normal or minimal hearing loss with tinnitus in the age range of 18 to 40 years were enrolled in the present study. Pure tone audiometry (PTA), immittance audiometry and otoacoustic emissions were done to diagnose the degree of hearing loss. Duration discrimination test (DDT), differential limen for intensity (DLI) and differential limen for frequency (DLF) was administered on all the participants using MATLAB software (MLP toolbox) at the matched tinnitus frequency, half an octave below - above the frequency.Results: The results show that there was a significant increase in DDT, DLI and DLF thresholds at the tinnitus frequency compared to half an octave above and below the matched frequency. The result suggests that differential sensitivity abilities regarding frequency, intensity, and duration are affected at the tinnitus frequency in individuals with tinnitus. Conclusion: The results of the study suggest that the differential sensitivity ability is affected in individuals with tinnitus especially at the frequency of tinnitus.
700 _aPrashanth Prabhu
700 _aPrithivi Thanikaiarasu
773 _aThe Journal of International Advanced Otology
856 _uhttps://doi.org/10.5152/iao.2019.6698
942 _cFJAS
_yFJAS
999 _c18026
_d18026