This paper is published in Volume-4, Issue-3, 2018
Area
Hearing
Author
P. Anita Phoebe Ivvah, Narendra Kumar M., Ranjith R.
Org/Univ
Holy Cross College Autonomous,Tiruchirappalli,Tamil Nadu, India
Pub. Date
15 June, 2018
Paper ID
V4I3-1896
Publisher
Keywords
MCL, SNR, ITD, ILD, CI

Citationsacebook

IEEE
P. Anita Phoebe Ivvah, Narendra Kumar M., Ranjith R.. Profiling outcomes in clients with bimodal hearing, International Journal of Advance Research, Ideas and Innovations in Technology, www.IJARIIT.com.

APA
P. Anita Phoebe Ivvah, Narendra Kumar M., Ranjith R. (2018). Profiling outcomes in clients with bimodal hearing. International Journal of Advance Research, Ideas and Innovations in Technology, 4(3) www.IJARIIT.com.

MLA
P. Anita Phoebe Ivvah, Narendra Kumar M., Ranjith R.. "Profiling outcomes in clients with bimodal hearing." International Journal of Advance Research, Ideas and Innovations in Technology 4.3 (2018). www.IJARIIT.com.

Abstract

The current study aims to profile the outcome measures of bimodal hearing in terms of speech perception in noise, pitch pattern differentiation ability and also the range of hearing disabilities across several domains using the Speech, Spatial and Qualities of Hearing Scale (SSQ). A total of 15 subjects with age range of 6 – 20 years have participated in the study. Primarily aided responses were obtained for frequencies ranging from 250Hz to 8 KHz under three conditions. Loudness scaling procedure was attempted to obtain the most comfortable level. At the level of MCL, Pitch pattern test scores and also speech perception in noise scores by using variable SNR procedure were obtained under three conditions along with SSQ questionnaire administration. The results of the speech perception in noise test reveal that subjects with bimodal stimulation have shown a mean of +4 dB SNR improvement in signal to noise ratio when compared with CI alone condition. The temporal organization capacity is also better with bimodal condition with a mean percentage of 58.4% when compared with the unimodal condition. The perceptual rating of the bimodal condition also seems to be better than the unimodal condition for each question in SSQ questionnaire. To conclude with the Outcome measures of all test procedures, the subjects with bimodal stimulation perform significantly better than Unimodal stimulation condition. Binaural hearing improves better speech perception in noise with the help of squelch effect, better localization skills with the help of ITD and ILD cues, ease of listening through binaural summation. Bimodal stimulation provides the above mentioned binaural advantages to the hearing-impaired population. This bimodal stimulation is also helpful in restricting the auditory deprivation in the non-implanted side of the individual with bilateral Severe to Profound hearing loss, which in turn will give good prognosis if the CI is done on the other ear later