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Bimanual task performance: Adults who do and do not stutter.

Danielle Werle1, Courtney Byrd1, Zoi Gkalitsiou1

  • 1Department of Communication Sciences and Disorders, The University of Texas at Austin, University Station A1100, Austin, TX 78759, USA.

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|June 2, 2019
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Summary
This summary is machine-generated.

Adults who stutter (AWS) did not show significant differences in Purdue Pegboard Test performance compared to adults who do not stutter (AWNS). Stuttering frequency did not predict performance in this adult group.

Keywords:
DisfluencyManualMotorPurdue Pegboard TestStuttering

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Area of Science:

  • Speech and Language Pathology
  • Neuroscience of Speech Disorders
  • Motor Control in Stuttering

Background:

  • Previous research indicated children who stutter perform worse on the Purdue Pegboard Test than peers without stuttering.
  • Prior studies suggested a link between Purdue Pegboard Test performance and stuttering frequency in children.

Purpose of the Study:

  • To investigate if performance differences on the Purdue Pegboard Test observed in children who stutter are also present in adults who stutter (AWS).
  • To determine if stuttering frequency correlates with Purdue Pegboard Test performance in adults.

Main Methods:

  • Forty-eight participants (24 AWS, 24 AWNS) were matched for age, gender, education, and handedness.
  • All participants completed all four tasks of the Purdue Pegboard Test.
  • Statistical analyses were performed to compare group performance and assess the relationship between stuttering frequency and task performance.

Main Results:

  • No significant differences in Purdue Pegboard Test performance were found between adults who stutter and adults who do not stutter.
  • Stuttering frequency did not emerge as a significant predictor of Purdue Pegboard Test performance in the adult participants.

Conclusions:

  • The manual dexterity differences observed in children who stutter on the Purdue Pegboard Test may not persist into adulthood.
  • The Purdue Pegboard Test may not be sensitive enough to detect subtle motor differences in adults who stutter, or these differences may be specific to certain subgroups.