Examination of Cerebral Hemodynamics of School-Aged Children Who Do and Do Not Stutter During Reading: a Near-Infrared Spectroscopy Pilot Study

  • Author / Creator
    Joseph, Catherene M
  • This exploratory pilot study examined the reliability of using functional near-infrared spectroscopy (fNIRS) to evaluate cerebral hemodynamic responses of oxygenated hemoglobin (HbO2), deoxygenated hemoglobin (HHb), hemoglobin difference (HbDiff) and total hemoglobin (tHb) in the left inferior frontal region during silent and out loud reading in 15 typically fluent school-aged children (TFC). Hemodynamic responses of 4 children who stutter (CWS) were also compared to matched TFC. In TFC, fNIRS was found to reliably measure changes in all cerebral hemodynamic variables during out loud reading, but only HbO2 and tHb during silent reading. Comparisons between CWS and matched TFC revealed no clear differences, except for group differences in the out loud condition, in which CWS exhibited consistent neuronal deactivation more frequently than matched TFC. The findings of this study provide support for the feasibility and reliability of using fNIRS to measure neural function in TFC during out loud reading.

  • Subjects / Keywords
  • Graduation date
    Spring 2014
  • Type of Item
  • Degree
    Master of Science
  • DOI
  • License
    This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.
  • Language
  • Institution
    University of Alberta
  • Degree level
  • Department
  • Specialization
    • Rehabilitation Science
  • Supervisor / co-supervisor and their department(s)
  • Examining committee members and their departments
    • De Nil, Luc (Speech-Language Pathology; University of Toronto)
    • Langevin, Marilyn (Speech Pathology and Audiology)
    • Bhambhani, Yagesh (Occupational Therapy)
    • Cummine, Jacqueline (Speech Pathology and Audiology)