Binaural summation, binaural unmasking and fluctuating masker benefit in bimodal and bilateral adult cochlear implant users.

摘要: Objectives The number of bilateral adult cochlear implant (CI) users and bimodal CI is expanding worldwide. addition a hearing aid (HA) in the contralateral non-implanted ear (bimodal) or second (bilateral) can provide with some benefits associated listening two ears. Our was to examine whether demonstrate binaural summation, unmasking fluctuating masker benefit. Methods Direct audio input used present stimuli 10 CochlearTM users. Speech recognition noise (speech reception threshold, SRT) assessed monaurally, diotically (identical signals both devices) dichotically (antiphasic speech) different masking noises (steady-state interrupted), using digits-in-noise test. Results Bilateral demonstrated trend towards better SRTs CIs than one CI. Bimodal showed no difference between SRT for alone. No significant differences were found diotic dichotic conditions either group. Analyses electrodograms created from that substantial parts interaural speech cues preserved Advanced Combination Encoder, an n-of-m channel selection coding strategy, by significantly interrupted steady-state Conclusion but did not. group A large benefit