Environmental Sound Test

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PERCEPTION OF ENVIRONMENTAL SOUNDS IN PRE LINGUALLY HEARING IMPAIRED COCHLEAR IMPLANT RECIPIENTS Introduction: Accurate identification of environmental sounds plays an important role in maintaining listeners' awareness of their environment, and is a major concern for cochlear implant recipients. Although research indicates that the decrease in spectral resolution has a negative impact on environmental sound recognition, little is known about the process that is underlying the perceptual adaptation to spectrally-degraded input. Most listening environments contain a great variety of auditory signals. Although communication researchers till date have concentrated primarily only on speech and there is a growing appreciation of the importance…show more content…
Environmental Sound Test(EST): Environmental Sound Test was a test developed by NehaRawath in the year 2001. The test consisted of a test material and compact disk consisting of recorded environmental sounds which we hear in our day to day situations. The test material was divided into two parts, one part consisted of pictures for the children between the age ranges of 3- 5 years and the other part consisted of pictures for the age range of 0-2 years of age. Early Speech Perception Test (ESPT) : Environmental speech perception test was developed by Jean S Moog and Ann E Geers in the year 1990 for the children between the age range of 3-12 years. This test establishes objectives for auditory training for children who are profoundly hearing impaired. It helps in measuring affects of auditory training and effectiveness of hearing aids or cochlear implants. Meaningful Auditory Integration Scale…show more content…
The minimum identification score was 30/50. For analysis, the subjects in were further split into 2 groups based on therating scale which depicted the number of correct responses acquired for each stimuli given. The rating scale is as follows(Table 2) Number of correct responses Grades 40-45 Fair 46-50 Good Table 1: Rating scale for the correct response for ESPT response The responses obtained from group 1 participants (Figure 2) for ESPT test revealed three candidates with fair grade and three with good grades respectively. While group 2 (OA) responses revealed one candidates with fair grades and the remaining five with good grades.Though this result was not statistically significant (p>0.05) (Z signed ranks test, 2 tailed test) but comparatively group 2 candidates performed better than group 1.). Figure 2: Comparison of ESPT response scores between the groups For the Meaningful Auditory Integration Scale (MAIS) the total score is calculated as 40.The maximum score was 40/40. The minimum identification score was 30/40. For analysis, the subjects in were further split into 2 groups based on therating scale which depicted the number of correct responses acquired for each stimuli given. The rating scale is as follows (Table

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