Relationship between Adult Acquired Stuttering and Motor Speech: a Case Study
Presentation Type
Poster
Faculty Advisor
Michael Bixter
Access Type
Event
Start Date
26-4-2024 12:45 PM
End Date
26-4-2024 1:44 PM
Description
Acquired stuttering is a disorder with a neurogenic or psychogenic onset of stuttering-like disfluencies. Developmental stuttering is a neurodevelopmental disorder originating in childhood. Literature suggests that people who stutter may have limited motor skill. Guenther and Hickok (2016) utilized the DIVA model to account for mechanics of speech motor control in apraxia of speech, ataxic dysarthria, and stuttering, positing that stuttering involves an impairment of the basal ganglia and the Supplementary Motor Area, which is hypothesized to control the initiation of speech motor commands. Erdemir and colleagues (2023) found that children with persistent stuttering can be differentiated by speech rhythm from children who later recover. Neurogenic stuttering in Parkinson’s disease (PD) is higher in frequency in those with more highly impaired motor functioning, suggesting a “purely motoric basis” for the stuttered disfluencies in PD. The presence of adaptation in a portion of people with neurogenic and developmental stuttering implies that principles of motor learning (PML) may be effective for these individuals. In our literature review and case study we 1) explore characteristics of participant(s) diagnosed with acquired stuttering, with comorbid disorders including motor speech disorders, and 2) focus on the influence of motor speech impairment on stuttering, in search of new treatment options for disfluency based on PML. Expected findings include whether participant(s) exhibit adaptation, to what degree, and behavioral, social-emotional, cognitive aspects of participant stuttering. If adaptation is present, the implication is an increased likelihood of benefitting from PML applied to treatment.
Relationship between Adult Acquired Stuttering and Motor Speech: a Case Study
Acquired stuttering is a disorder with a neurogenic or psychogenic onset of stuttering-like disfluencies. Developmental stuttering is a neurodevelopmental disorder originating in childhood. Literature suggests that people who stutter may have limited motor skill. Guenther and Hickok (2016) utilized the DIVA model to account for mechanics of speech motor control in apraxia of speech, ataxic dysarthria, and stuttering, positing that stuttering involves an impairment of the basal ganglia and the Supplementary Motor Area, which is hypothesized to control the initiation of speech motor commands. Erdemir and colleagues (2023) found that children with persistent stuttering can be differentiated by speech rhythm from children who later recover. Neurogenic stuttering in Parkinson’s disease (PD) is higher in frequency in those with more highly impaired motor functioning, suggesting a “purely motoric basis” for the stuttered disfluencies in PD. The presence of adaptation in a portion of people with neurogenic and developmental stuttering implies that principles of motor learning (PML) may be effective for these individuals. In our literature review and case study we 1) explore characteristics of participant(s) diagnosed with acquired stuttering, with comorbid disorders including motor speech disorders, and 2) focus on the influence of motor speech impairment on stuttering, in search of new treatment options for disfluency based on PML. Expected findings include whether participant(s) exhibit adaptation, to what degree, and behavioral, social-emotional, cognitive aspects of participant stuttering. If adaptation is present, the implication is an increased likelihood of benefitting from PML applied to treatment.