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Hyperactivity in boys with attention-deficit/hyperactivity disorder (ADHD): The role of executive and non-executive functions.

Motor activity of boys (age 8-12 years) with (n=19) and without (n=18) ADHD was objectively measured with actigraphy across experimental conditions that varied with regard to demands on executive functions. Activity exhibited during two n-back (1-back, 2-back) working memory tasks was compared to ac...

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Published in:Research in Developmental Disabilities Vol. 45; pp. 103 - 110
Main Authors: Hudec, Kristen L., Alderson, R. Matt, Patros, Connor H.G., Lea, Sarah E., Tarle, Stephanie J., Kasper, Lisa J.
Format: Journal Article
Published: Pergamon Press - An Imprint of Elsevier Science Oct2015
Online Access:View this record in EBSCOhost
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      dt: Oct2015
      vid: 45
      pid: 2410
      pub: Pergamon Press - An Imprint of Elsevier Science
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        NLM26232202
        10.1016/j.ridd.2015.07.012
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        109914997
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        atl: Hyperactivity in boys with attention-deficit/hyperactivity disorder (ADHD): The role of executive and non-executive functions.
      aug:
        au:
          Hudec, Kristen L.
          Alderson, R. Matt
          Patros, Connor H.G.
          Lea, Sarah E.
          Tarle, Stephanie J.
          Kasper, Lisa J.
        affil: Department of Psychology, Oklahoma State University, United States
      sug:
        subj:
          Attention Deficit Hyperactivity Disorder Physiopathology
          Executive Function
          Hyperkinesis Physiopathology
          Motor Activity
          Memory, Short Term
          Attention Deficit Hyperactivity Disorder Psychosocial Factors
          Actigraphy
          Reaction Time
          Case Control Studies
          Decision Making
          Hyperkinesis Psychosocial Factors
          Task Performance and Analysis
          Male
          Child
          Child: 6-12 years
          Male
      ab: Motor activity of boys (age 8-12 years) with (n=19) and without (n=18) ADHD was objectively measured with actigraphy across experimental conditions that varied with regard to demands on executive functions. Activity exhibited during two n-back (1-back, 2-back) working memory tasks was compared to activity during a choice-reaction time (CRT) task that placed relatively fewer demands on executive processes and during a simple reaction time (SRT) task that required mostly automatic processing with minimal executive demands. Results indicated that children in the ADHD group exhibited greater activity compared to children in the non-ADHD group. Further, both groups exhibited the greatest activity during conditions with high working memory demands, followed by the reaction time and control task conditions, respectively. The findings indicate that large-magnitude increases in motor activity are predominantly associated with increased demands on working memory, though demands on non-executive processes are sufficient to elicit small to moderate increases in motor activity as well.
      pubtype: Academic Journal
      doctype: Journal Article
      ougenre: Article
    language: English
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