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022 _a2582-4961
100 _aMythri, H. M.
245 0 _aNasalance in typically developing children and in children with hearing impairment
260 _bAll India Institute of Speech and Hearing
_c2014
270 _aAll India Institute of Speech and Hearing
270 _mpushpa19@yahoo.co.in
300 _a1-7
490 _vVolume 33
520 _aThis study compared the effects of vowels and CV combinations on nasalance scores in children with and without hearing impairment using Nasometer II Model 6400. The eect of voicing on nasalance scores was also analyzed. Fifteen children with normal hearing and fteen with hearing impairment in the age range of 3 to 7 years participated in the study. The subjects were instructed to repeat isolated vowels (/a/, /i/, /u/) and CV combinations (phonemes /p/, /t/, /k/, /b/, /d/ and /g/ with vowels /a/, /i/ and /u/) at their habitual rate. The mean nasalance value was extracted. Independent samples t-test showed a signicant dierence in the nasalance values across vowels in both the groups. High nasalance value was seen for high anterior vowel /i/ followed by /a/ and /u/. Both unvoiced and voiced bilabial, dental and velar consonants with /i/ had high nasalance value followed by /u/ and /a/ in the both groups. This is attributed to the valving function of velopharyngeal closure during the articulation of /i/. Children with hearing impairment had signicantly higher mean nasalance values when compared to children with normal hearing owing to the lack of auditory feedback, essential to maintain the oral/nasal distribution. The results also showed that voiced consonants had higher nasalance values than their unvoiced counterparts. The outcome of the present study would aid Speech Pathologists in developing appropriate stimuli for assessing velopharyngeal closure for children with hearing impairment.
653 _aNasality, Auditory feedback, Velopharyngeal closure, Voicing
700 _aDeepashree, S. R.
700 _aPushpavathi, M
773 _aJournal of All India Institute of Speech & Hearing
856 _uhttp://192.168.102.7/jaiish/index.php/aiish/article/view/759/459
942 _cFJAS
_yFJAS
999 _c17685
_d17685