Perceptual adaptation to dysarthric speech is modulated by concurrent phonological processing: A dual task study.

Listeners can adapt to noise-vocoded speech under divided attention using a dual task design [Wang, Chen, Yan, McGettigan, Rosen, and Adank, Trends Hear. 27, 23312165231192297 (2023)]. Adaptation to noise-vocoded speech, an artificial degradation, was largely unaffected for domain-general (visuomotor) and domain-specific (semantic or phonological) dual tasks.

Perceptual Learning of Dysarthria in Adolescence.

Purpose: As evidenced by perceptual learning studies involving adult listeners and speakers with dysarthria, adaptation to dysarthric speech is driven by signal predictability (speaker property) and a flexible speech perception system (listener property). Here, we extend adaptation investigations to adolescent populations and examine whether adult and adolescent listeners can learn to better understand an adolescent speaker with dysarthria.

Method: Classified by developmental stage, adult ( = 42) and adolescent ( = 40) listeners completed a three-phase perceptual learning protocol (pretest, familiarization, and posttest).