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Neural Correlates of Interference Control in Adolescents with Traumatic Brain Injury: Functional Magnetic Resonance Imaging Study of the Counting Stroop Task

  • Sarah J. Tlustos (a1), C.-Y. Peter Chiu (a1) (a2), Nicolay Chertkoff Walz (a3) (a4), Scott K. Holland (a4) (a5), Lori Bernard (a6) and Shari L. Wade (a4) (a6)...
Abstract
Abstract

Difficulty in inhibition or cognitive control is a common and significant sequela of pediatric traumatic brain injury (TBI). The present study used functional MRI to examine one specific inhibitory function, interference control, in 11 adolescents, aged 12–16 years, (mean age, 15.7 years) with TBI who were at least 1 year postinjury and 11 age-matched typically developing control participants (TC) (mean age, 15.2 years). Participants completed a Counting Stroop task with 2 main conditions: (1) a neutral condition requiring the counting of animal words and (2) an interference condition in which mismatched number words were counted. Both TBI and TC adolescents activated similar networks of brain regions relevant to interference control, but the TBI group showed higher levels of activation relative to the TC group in multiple brain areas within this network, including predominantly right frontal and parietal regions. Findings of greater activation of the relevant neural network in the TBI group are consistent with recent fMRI findings using other interference control paradigms with individuals with a history of TBI. (JINS, 2011, 17, 000–000.)

Copyright
Corresponding author
Correspondence and reprint requests to: Peter Chiu, Department of Psychology, University of Cincinnati, 101A Dyer Hall, ML 0376, Cincinnati, OH 45221-0376. E-mail: peter.chiu@uc.edu
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Journal of the International Neuropsychological Society
  • ISSN: 1355-6177
  • EISSN: 1469-7661
  • URL: /core/journals/journal-of-the-international-neuropsychological-society
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