Abstract

This study explored the effect of contextual diversity on speech motor learning in an individual with apraxia of speech (AOS) using virtual reality (VR). One 62-year-old participant with severe AOS participated in the study where he practiced monosyllabic CVC words in both consistent and diverse VR environments. Kinematic, acoustic, and perceptual data were collected and evaluated for evidence of learning. Kinematic data were collected using electromagnetic articulography where sensors were glued to the participant's upper lip, lower lip, tongue blade, and tongue tip and were tracked with high precision. In addition, acoustic and perceptual data were collected using a microphone and analyzed using Praat software. Results suggest that the diverse condition may have benefitted speech motor learning and retention for the participant as seen by decreased stroke count, reduced duration of speech production, and increased accuracy in the diverse condition. These findings suggest that varied practice in multiple VR contexts might enhance speech motor skill acquisition and retention more effectively than consistent practice. While kinematic metrics show mixed results, overall data align with the hypothesis that diverse learning contexts might facilitate better motor learning outcomes. This research also highlights the potential of VR as a clinical tool for improving speech therapy interventions for individuals with AOS.

Degree

MS

College and Department

David O. McKay School of Education; Communication Disorders

Rights

https://lib.byu.edu/about/copyright/

Date Submitted

2024-08-01

Document Type

Thesis

Handle

http://hdl.lib.byu.edu/1877/etd13405

Keywords

speech impairments, aphasia, speech improvement, computer simulation, generalization

Language

english

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