The Effect of Computer-Based Auditory Training on Speech-in-Noise Perception in Adults: a Systematic Review and...

Area of Science:

• Audiology
• Neuroscience
• Rehabilitation Science

Background:

• Difficulty understanding speech in noisy environments is a common complaint among adults.
• Computer-based auditory training (CBAT) offers a flexible and accessible approach to auditory rehabilitation.

Purpose of the Study:

• To systematically evaluate the effectiveness of CBAT for improving speech-in-noise (SPiN) perception in adults.
• To assess the quality of evidence and risk of bias in relevant clinical trials.

Main Methods:

• A comprehensive search of 11 databases (1990-2020) identified clinical trials comparing CBAT to control groups.
• Primary outcomes included speech perception thresholds and SPiN test scores, analyzed using the difference pretest-posttest-control (dppc²) index.
• Risk of bias and certainty of evidence were assessed using Cochrane Collaboration and GRADE guidelines.

Main Results:

• CBAT demonstrated a moderate effect in improving SPiN perception across two subgroups (dppc² = -0.69 and 0.71).
• However, 19 out of 23 studies had a high risk of bias.
• The overall certainty of the evidence for both primary outcomes was low.

Conclusions:

• Computer-based auditory training shows potential as a moderately effective intervention for enhancing SPiN perception in adults.
• The current evidence base is limited by the low quality and low certainty of the included studies.
• Further high-quality research is needed to confirm the definitive efficacy of CBAT for SPiN improvement.