The Effect of Learning Modality and Auditory Feedback on Word Memory: Cochlear-Implanted versus Normal-Hearing Adults

Area of Science:

• Neuroscience
• Cognitive Psychology
• Audiology

Background:

• Cognitive abilities impact cochlear implant (CI) user achievements.
• Previous research suggests modality-specific cognitive gaps between CI users and normal-hearing (NH) individuals, primarily in auditory tasks.

Purpose of the Study:

• To investigate the influence of learning modality (auditory vs. visual) and auditory feedback on word memory in young adults with prelingual deafness and CIs.
• To compare memory performance between CI users and their NH peers.

Main Methods:

• Utilized a production effect (PE) paradigm with visual (written) and auditory (heard) word presentations.
• Participants learned words via vocal production (aloud) or no-production (silent reading/listening).
• CI users completed visual tasks with implants ON and OFF; all conditions followed by free recall tests.

Main Results:

• CI users demonstrated comparable visual memory performance and PE to NH peers, irrespective of implant status.
• With auditory presentation, CI users exhibited poorer memory for nonproduced words, resulting in a larger PE compared to NH peers.
• Vocal production enhanced auditory word memory in CI users.

Conclusions:

• Young adults with CIs benefit more from visual learning (reading) than auditory learning (listening).
• Vocal production significantly enhances auditory word memory, particularly for CI users.
• Findings highlight the importance of learning modality and vocalization for memory in CI users.