Investigating Perception to Production Transfer in Children With Cochlear Implants: A High Variability Phonetic...

Area of Science:

• Speech-Language Pathology
• Auditory Neuroscience
• Pediatric Audiology

Background:

• Pediatric cochlear implant (CI) users often struggle with Mandarin lexical tone perception and production.
• Effective training methods are crucial for improving speech outcomes in this population.

Purpose of the Study:

• To investigate the benefits of high variability phonetic training (HVPT) for Mandarin-speaking pediatric CI recipients.
• To assess the impact of HVPT on both lexical tone perception and production.

Main Methods:

• Thirty-two pediatric CI recipients were divided into a training group (TG) and a control group (CG).
• The TG received 3 weeks of HVPT, while the CG did not.
• Mandarin tone perception and production were evaluated pre- and post-training.

Main Results:

• The TG showed significant improvements in Mandarin tone identification for trained and untrained stimuli.
• HVPT also facilitated the production of tones T1 and T2, evidenced by acoustic analysis.
• No significant changes were observed for tones T3 and T4 production, or in the CG.

Conclusions:

• Perceptual learning from HVPT shows limited and inconsistent transfer to lexical tone production in pediatric CI users.
• The findings challenge assumptions of robust transfer and highlight the complexity of auditory training outcomes.
• Further research with longitudinal designs is recommended to optimize interventions for diverse learner needs.