Impact of an Auditory Processing Training Program on Individuals With Autism Spectrum Disorder

Area of Science:

• Neuroscience
• Audiology
• Developmental Psychology

Background:

• Individuals with autism spectrum disorder (ASD) frequently experience auditory processing difficulties, especially in noisy environments.
• Previous research indicates a need for targeted interventions to address these challenges in children and young adults with ASD.

Purpose of the Study:

• To evaluate the effectiveness of a 12-week auditory processing training (APT) program for individuals with ASD.
• To assess the impact of remote-microphone technology combined with auditory training on auditory processing skills.
• To analyze the effect sizes of training benefits and explore underlying performance constructs using principal component analysis (PCA).

Main Methods:

• A 12-week APT program involving speech-in-noise training, dichotic training, and remote-microphone technology use.
• Participants (N=28) with ASD completed pre- and post-training assessments.
• Tests included speech recognition in noise, spatial processing, binaural integration, and general auditory skills.

Main Results:

• Significant improvements were observed across most auditory skill measures post-training.
• Medium-to-large effect sizes indicated substantial training benefits.
• PCA revealed strong interrelationships among auditory tests and linked behavioral performance to training duration and improvements.

Conclusions:

• The APT program, integrated with remote-microphone technology, effectively enhanced auditory processing in individuals with ASD.
• Key areas of improvement included spatial processing, binaural integration, phonological processing, auditory memory, auditory cohesion, and speech recognition in noise.
• The study suggests the feasibility of a shorter auditory processing test battery for ASD and highlights the association between training engagement and outcomes.