Using a multi‐feature paradigm to measure mismatch responses to minimal sound contrasts in children with cochlear implants and hearing aids |
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Authors: | Inger Uhlén Elisabet Engström Petter Kallioinen Cecilia Nakeva von Mentzer Björn Lyxell Birgitta Sahlén Magnus Lindgren Marianne Ors |
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Affiliation: | 1. Department of Hearing and Balance, Karolinska University Hospital and Karolinska Institutet (CLINTEC), Stockholm, Sweden;2. Department of Linguistics, Stockholm University, Stockholm, Sweden;3. Department of Behavioral Sciences and Learning, Swedish Institute for Disability Research, Link?ping University, Link?ping, Sweden;4. Linneaus Centre;5. Cognition, Communication & Learning, Lund University, Lund, Sweden;6. Department of Logopedics, Phoniatrics and Audiology, Lund University, Sk?ne University Hospital, Lund, Sweden;7. Department of Psychology, Lund University, Lund, Sweden;8. Department of Clinical Neurophysiology, Lund University, Sk?ne University Hospital, Lund, Sweden |
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Abstract: | Our aim was to explore whether a multi‐feature paradigm (Optimum‐1) for eliciting mismatch negativity (MMN) would objectively capture difficulties in perceiving small sound contrasts in children with hearing impairment (HI) listening through their hearing aids (HAs) and/or cochlear implants (CIs). Children aged 5–7 years with HAs, CIs and children with normal hearing (NH) were tested in a free‐field setting using a multi‐feature paradigm with deviations in pitch, intensity, gap, duration, and location. There were significant mismatch responses across all subjects that were positive (p‐MMR) for the gap and pitch deviants (F(1,43) = 5.17, p = 0.028 and F(1,43) = 6.56, p = 0.014, respectively) and negative (MMN) for the duration deviant (F(1,43) = 4.74, p = 0.035). Only the intensity deviant showed a significant group interaction with MMN in the HA group and p‐MMR in the CI group (F(2,43) = 3.40, p = 0.043). The p‐MMR correlated negatively with age, with the strongest correlation in the NH subjects. In the CI group, the late discriminative negativity (LDN) was replaced by a late positivity with a significant group interaction for the location deviant. Children with severe HI can be assessed through their hearing device with a fast multi‐feature paradigm. For further studies a multi‐feature paradigm including more complex speech sounds may better capture variation in auditory processing in these children. |
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Keywords: | Mismatch negativity (MMN) hearing impairment cochlear implant hearing aid children multi‐feature paradigm |
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