Cochlear-implant listeners benefit from training with time-compressed speech, even at advanced ages

Area of Science:

• Audiology
• Neuroscience
• Speech-Language Pathology

Background:

• Cochlear implantation is a vital auditory prosthesis for sensorineural hearing loss.
• Auditory training is crucial for optimizing cochlear implant outcomes.
• Temporal processing deficits can impact speech recognition, especially with faster speech rates.

Purpose of the Study:

• To investigate the efficacy of adaptive training using time-compressed speech for improving speech recognition in adult cochlear implant (CI) users.
• To determine if improvements in speech recognition are dependent on the age of CI users.

Main Methods:

• Employed a pretest-training-posttest design with 14 adult CI users.
• Utilized a 5-hour adaptive training protocol with time-compressed speech stimuli.
• Assessed speech recognition thresholds before and after the training intervention.

Main Results:

• Significant improvements in time-compressed speech recognition were observed post-training.
• The average speech recognition threshold improved by over 5% after training.
• No significant age-dependent effects were found on the training-induced improvements.

Conclusions:

• Adaptive training with time-compressed speech is an effective method for enhancing speech recognition in adult CI users.
• This training approach shows promise for aural rehabilitation across the adult lifespan.
• Time-compressed speech may be a valuable tool for training temporal processing skills in CI users.