The purpose of this study was to examine the following prosodic elements: speech rate, turn-taking latency, number of interruptions, and utterance duration across two groups' neurotypical and autistic young adults. Furthermore, the end goal of this study is to help provide a baseline and clinical application of prosodic differences between autistic and neurotypical adults. Speech samples were collected from 11 neurotypical and 11 autistic young adults from the ages of 18-26. Speech samples were recorded responses from a 10-minute interview between two research assistants and the autistic or neurotypical individual. Using Praat software, speech samples were analyzed and used to calculate speech rate, utterance duration, turn-taking latency, and the number of interruptions for each subject. Across the four prosodic elements, there were significant differences between the autistic and neurotypical groups. The neurotypical group exhibited significantly higher speech and interruption rates when compared to the autistic group. Whereas, the autistic group displayed longer turn-taking latency periods and longer utterance durations. Across all conditions, there were no significant difference between biological sex or effect of familiarity within the autistic and neurotypical groups. Results of this study provide clinicians and researchers a baseline of prosodic differences found between autistic and neurotypical individuals. Future research is needed to better understand how these findings might improve the assessment and treatment of autistic individuals.
| Identifer | oai:union.ndltd.org:BGMYU2/oai:scholarsarchive.byu.edu:etd-11290 |
| Date | 22 March 2024 |
| Creators | Bell, Grace Madeline |
| Publisher | BYU ScholarsArchive |
| Source Sets | Brigham Young University |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | Theses and Dissertations |
| Rights | https://lib.byu.edu/about/copyright/ |
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