User-operated speech in noise test: Implementation and comparison with a traditional test

Pedersen, Ellen Raben; Juhl, Peter Møller

doi:10.3109/14992027.2013.860486

Cited by 6 publications

(2 citation statements)

References 13 publications

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“…The marked improvement in the CI users’ SRT s suggested a transfer effect from the music training. The similar and significant progress in the non-trained NH group, however, indicates that these improvements are the results of a test learning effect, as seen in previous studies (Pedersen and Juhl, 2013 ). The Dantale II test requires the ability to identify words in spoken sentences in background noise and subsequently match these with a matrix of optional words on a computer screen, a complex task that relies on both reading skills and working memory and may benefit from previous exposure.…”

Section: Discussionsupporting

confidence: 82%

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Brain Responses to Musical Feature Changes in Adolescent Cochlear Implant Users

Petersen

Weed

Sandmann

et al. 2015

Front. Hum. Neurosci.

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Cochlear implants (CIs) are primarily designed to assist deaf individuals in perception of speech, although possibilities for music fruition have also been documented. Previous studies have indicated the existence of neural correlates of residual music skills in postlingually deaf adults and children. However, little is known about the behavioral and neural correlates of music perception in the new generation of prelingually deaf adolescents who grew up with CIs. With electroencephalography (EEG), we recorded the mismatch negativity (MMN) of the auditory event-related potential to changes in musical features in adolescent CI users and in normal-hearing (NH) age mates. EEG recordings and behavioral testing were carried out before (T1) and after (T2) a 2-week music training program for the CI users and in two sessions equally separated in time for NH controls. We found significant MMNs in adolescent CI users for deviations in timbre, intensity, and rhythm, indicating residual neural prerequisites for musical feature processing. By contrast, only one of the two pitch deviants elicited an MMN in CI users. This pitch discrimination deficit was supported by behavioral measures, in which CI users scored significantly below the NH level. Overall, MMN amplitudes were significantly smaller in CI users than in NH controls, suggesting poorer music discrimination ability. Despite compliance from the CI participants, we found no effect of the music training, likely resulting from the brevity of the program. This is the first study showing significant brain responses to musical feature changes in prelingually deaf adolescent CI users and their associations with behavioral measures, implying neural predispositions for at least some aspects of music processing. Future studies should test any beneficial effects of a longer lasting music intervention in adolescent CI users.

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Section: Discussionsupporting

confidence: 82%

“…CI users as well as NH participants completed the test at both recording sessions (T1 and T2). The rationale for testing NH participants twice was first to identify any effects of time and, second, to identify learning effects, which have been reported previously (Pedersen and Juhl, 2013 ).…”

Section: Methodsmentioning

confidence: 99%