Journal of Rehabilitation Research & Development (JRRD)

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Volume 50 Number 1, 2013
   Pages 99 — 110

Abstract — Minimal effects of visual memory training on auditory performance of adult cochlear implant users

Sandra I. Oba, MS;1* John J. Galvin III, BA;1 Qian-Jie Fu, PhD1–2
1Division of Communication and Auditory Neuroscience, House Research Institute, Los Angeles, CA; 2Department of Biomedical Engineering and Neuroscience Program, University of Southern California, Los Angeles, CA

Abstract — Auditory training has been shown to significantly improve cochlear implant (CI) users’ speech and music perception. However, it is unclear whether posttraining gains in performance were due to improved auditory perception or to generally improved attention, memory, and/or cognitive processing. In this study, speech and music perception, as well as auditory and visual memory, were assessed in 10 CI users before, during, and after training with a nonauditory task. A visual digit span (VDS) task was used for training, in which subjects recalled sequences of digits presented visually. After the VDS training, VDS performance significantly improved. However, there were no significant improvements for most auditory outcome measures (auditory digit span, phoneme recognition, sentence recognition in noise, digit recognition in noise), except for small (but significant) improvements in vocal emotion recognition and melodic contour identification. Posttraining gains were much smaller with the nonauditory VDS training than observed in previous auditory training studies with CI users. The results suggest that posttraining gains observed in previous studies were not solely attributable to improved attention or memory and were more likely due to improved auditory perception. The results also suggest that CI users may require targeted auditory training to improve speech and music perception.

Key words: auditory learning, auditory perception, auditory training, cochlear implant, digit span, hearing loss, memory training, music perception, rehabilitation, speech recognition.


View HTML  ¦  View PDF  ¦  Contents Vol. 50, No. 1
This article and any supplementary material should be cited as follows:
Oba SI, Galvin JJ 3rd, Fu QJ. Minimal effects of visual memory training on auditory performance of adult cochlear implant users. J Rehabil Res Dev. 2013;50(1):99–110.
http://dx.doi.org/10.1682/JRRD.2011.12.0229
ResearcherID: Sandra I. Oba, MS: A-8272-2013
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Last Reviewed or Updated  Monday, March 11, 2013 2:23 PM

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