Journal of Capital Medical University ›› 2011, Vol. 32 ›› Issue (1): 50-54.

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Analysis of Mismatch Negativity in Cochlear Implant Users

KANG Hui1,2, GONG Shu-sheng1,2*, CHEN Xue-qing1,2, LIU Sha1,2   

  1. 1. Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University; 2. Key Laboratory of Otorhinolaryngology Head and Neck Surgery, Ministry of Education, Beijing Institute of Otorhinolaryngology
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-02-21 Published:2011-02-21
  • Contact: GONG Shu-sheng

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Abstract:

Objective To investigate the characteristics of the cochlear implant users on mismatch negativity(MMN).
Methods The standard(/ba/) and deviant stimuli (/da/) were presented in an oddball paradigm and the MMN were recorded. The relevance among the scores of speech discrimination and the characters of MMN and the mean auditory thresholds were investigated.
Results The peak latency of MMN in the cochlear implant(CI) group was significantly longer than that in the control group, but the amplitude changed slightly. A significant correlation was found between the scores of speech discrimination and the characters of MMN in CI group.
Conclusion There was significant correlation among the scores of speech discrimination and MMN, which further confirmed that mismatch negativity is a tool for the assessment of stimuli discrimination in cochlear implant subjects.

Key words: cochlear implant, mismatch negativity, event related potentials

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