Comparison of Disfluent and Ungrammatical Speech of Preadolescents with and without ASD
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ORIGINAL PAPER
Comparison of Disfluent and Ungrammatical Speech of Preadolescents with and without ASD Mari Wiklund1 · Minna Laakso2 Accepted: 30 September 2020 © The Author(s) 2020
Abstract This paper analyses disfluencies and ungrammatical expressions in the speech of 11–13-year-old Finnish-speaking boys with ASD (N = 5) and with neurotypical development (N = 6). The ASD data were from authentic group therapy sessions and neurotypical data from teacher-led group discussions. The proportion of disfluencies and ungrammatical expressions was greater in the speech of participants with ASD (26.4%) than in the control group (15.5%). Furthermore, a qualitative difference was noted: The ASD group produced long, complex disfluent turns with word searches, self-repairs, false starts, fillers, prolongations, inconsistent syntactic structures and grammatical errors, whereas in the control group, the disfluencies were mainly fillers and sound prolongations. The disfluencies and ungrammatical expressions occurring in the ASD participants’ interactions also caused comprehension problems. Keywords Asperger syndrome (AS) · Autism spectrum disorder (ASD) · Conversation · High-functioning autism · Speech disfluencies · Ungrammatical expressions Abbreviations CLI Clitic PER Person PL Plural PRT Particle SG Singular List of Symbols . Strongly falling pitch at the end of a prosodic unit ; Slightly falling pitch at the end of a prosodic unit , Flat pitch at the end of a prosodic unit ,? Slightly rising pitch at the end of a prosodic unit ? Strongly rising pitch at the end of a prosodic unit ↓ Segment produced on a lower pitch level than the surrounding speech * Mari Wiklund [email protected] 1
Department of Languages, University of Helsinki, Unioninkatu 40, P.O. Box 24, 00014 University of Helsinki, Helsinki, Finland
Department of Psychology and Logopedics, University of Helsinki, Helsinki, Finland
2
↑ Segment produced on a higher pitch level than the surrounding speech sika Prominent stress > tosi
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