Autonomic nervous system activity of preschool-age children who stutter

Details

• Alternative Title:
  J Fluency Disord
• Personal Author:
  Jones, Robin M. ; Buhr, Anthony P. ; Conture, Edward G. ; Tumanova, Victoria ; Walden, Tedra A. ; Porges, Stephen W.
• Description:
  Purpose ; The purpose of this study was to investigate potential differences in autonomic nervous system (ANS) activity to emotional stimuli between preschool-age children who do (CWS) and do not stutter (CWNS). ; Methods ; Participants were 20 preschool-age CWS (15 male) and 21 preschool-age CWNS (11 male). Participants were exposed to two emotion-inducing video clips (negative and positive) with neutral clips used to establish pre-and post-arousal baselines, and followed by age-appropriate speaking tasks. Respiratory sinus arrhythmia (RSA) – often used as an index of parasympathetic activity – and skin conductance level (SCL) – often used as an index of sympathetic activity – were measured while participants listened to/watched the audio-video clip presentation and performed a speaking task. ; Results ; CWS, compared to CWNS, displayed lower amplitude RSA at baseline and higher SCL during a speaking task following the positive, compared to the negative, condition. During speaking, only CWS had a significant positive relation between RSA and SCL. ; Conclusion ; Present findings suggest that preschool-age CWS, when compared to their normally fluent peers, have a physiological state that is characterized by a greater vulnerability to emotional reactivity (i.e., lower RSA indexing less parasympathetic tone) and a greater mobilization of resources in support of emotional reactivity (i.e., higher SCL indexing more sympathetic activity) during positive conditions. Thus, while reducing stuttering to a pure physiological process is unwarranted, the present findings suggest that parasympathetic and sympathetic nervous system activity is involved.
• Subjects:
  • Autonomic Nervous System
  • Case-Control Studies
  • Child, Preschool
  • Emotions
  • Female
  • Humans
  • Male
  • Socioeconomic Factors
  • Speech
  • Stuttering
  More +
• Keywords:
  • stuttering
  • preschool-age
  • respiratory sinus arrhythmia
  • skin conductance
• Source:
  J Fluency Disord. 2014; 0:12-31
• Pubmed ID:
  25087166
• Pubmed Central ID:
  PMC4150817
• Document Type:
  Journal Article
• Funding:
  UL1 TR000445/TR/NCATS NIH HHSUnited States/ ; T32-CH18921/CH/OID CDC HHSUnited States/ ; UL1 TR000445-06/TR/NCATS NIH HHSUnited States/ ; R01 DC000523/DC/NIDCD NIH HHSUnited States/ ; UL1 RR024975/RR/NCRR NIH HHSUnited States/ ; 1 UL1 RR024975-01/RR/NCRR NIH HHSUnited States/ ; 5R01DC000523-17/DC/NIDCD NIH HHSUnited States/
• Volume:
  0
• Download URL:
  https://stacks.cdc.gov/view/cdc/30097/cdc_30097_DS1.pdf
• File Type:
  [PDF - 471.63 KB]
• Collection(s):
  CDC Public Access
• Main Document Checksum:
  urn:sha256:0af4484539ec102b496ed01fe3c3b76f7c6f5f0de3689950696c039126321af6