Download 13th International Conference on Cochlear Implants and Other

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Transcript
S6-7
The impact of cochlear implantation of music appreciation
Looi V.
1
1
The Sydney Cochlear Implant Centre, Sydney, Australia
Intro: Existing research has shown that adult cochlear implant (CI) recipients report lower levels of music
appreciation and listening, compared to normal hearing (NH). However given that CI recipients have a significant
sensorineural hearing loss (SNHL), which results in physiological changes as well as psychoacoustic
abnormalities, is must be asked whether NH is a realistic or justifiable comparison of music outcomes for adult
recipients? When evaluating speech outcomes, a 'good' outcome is reported if a recipient's post-surgery scores
are better than those recorded in pre-implant evaluations (i.e. when the recipient had a significant SNHL).
Audiologists do not consider a 'good' outcome only to be when post-implant speech results are equal to, or better
than, NH. The purpose of this study was to evaluate the music appreciation levels of adults who met the
audiological criteria for standard implantation- i.e. a moderately-severe to profound bilateral SNHL.
Methods: The Music Quality Rating Test Battery (MQRTB) [Looi et al., 2011], along with a music questionnaire
[Looi et al., 2008] was administered to all adults who met the audiological criteria for a CI at a large clinic in
Australia. This paper is part of an ongoing study, with the MQRTB to be re-administered 3, 6 and 12 months
post-implant in a CI-only listening condition.
Results: Results are also compared to existing publications of CI recipients evaluated using the same MQRTB.
It was hypothesised that music appreciation levels would be higher post-implant than pre-implant, as the CI
should provide more of the higher frequency information that contributes to timbre perception, when compared to
having a moderately-severe to profound bilateral loss and using hearing aids.
Discussion and conclusion: These results have significant implications for clinical practice in terms of
counseling and setting realistic expectations for prospective as well as new recipients. It also has implications for
future research studies; are comparisons of CI recipients to NH listeners a fair or appropriate comparison?
Learning outcomes: This presentation will highlight the difference between music appreciation and music
perception will be given, and the need for separate assessments for these two independent issues. Delegates
will have a better understanding of the impact of cochlear implantation on music appreciation, as well as the
need to compare 'like with like'. That is, comparing results with the CI to those obtained just prior to implantation,
as opposed to comparing CI outcomes to NH performance. The application of these results in clinical practice
will be discussed.
References:
Looi, V., McDermott H. J., et al. 2008. Music perception of cochlear implant users compared to that of hearing
aid users. Ear Hear. 29, 421-434.
Looi, V., Winter, P., et al. 2011. A Music Quality Rating Test Battery for cochlear implant users to compare the
FSP and HCDCIS strategies for music appreciation. Int J Audiol 50, 503-518.
286