The CI MuMuFe - a new MMN paradigm for measuring music discrimination in electric hearing

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Music listening with a cochlear implant (CI) is challenging due to the poor representation of fine structure information. Therefore, extensive research has been initiated in the quest for improved music perception with a CI, including development of refined audio processing strategies and implementation of targeted musical ear training. To measure the music discrimination abilities of CI users, objective and feasible music tests are in demand. The purpose of this study was to design and test a novel musical multifeature MMN paradigm for use in future CI research. The paradigm presents four deviants (pitch, intensity, timbre and rhythm) at four levels of magnitude in a no-standards configuration.
To validate the paradigm, two groups of normal hearing participants were included and subjected to the tests: a young group (N: 17, M age 25) and an elderly group (N: 14; mean age 63). Results showed that the MMN paradigm elicited significant MMN responses for all 16 deviants in both groups. Furthermore, MMN amplitude strengths were in accordance with the levels of deviance. Results from a supplementary behavioral measurement, testing subjective discrimination of the deviants presented in the MMN paradigm, confirmed the overall findings of the MMN measurements, including the effect of level of deviation magnitude. The results suggest encouraging potential for using the paradigm in future CI research.
The study is work in progress and data are currently being collected from experienced and newly implanted CI users. Preliminary results from these groups will be available for presentation at the conference.
Original languageEnglish
Publication year13 Jun 2018
StatePublished - 13 Jun 2018
EventMMN 2018: The 8th Mismatch Negativity Conference: MMN from basic science to clinical applications - Helsinki, Finland
Duration: 12 Jun 201815 Jun 2018

Conference

ConferenceMMN 2018: The 8th Mismatch Negativity Conference
CountryFinland
CityHelsinki
Period12/06/201815/06/2018

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