Duda Thomas A, Casey Joseph E, McNevin Nancy
University of Windsor, 401 Sunset Avenue, Windsor, Ontario N9B 3P4, Canada.
University of Windsor, 401 Sunset Avenue, Windsor, Ontario N9B 3P4, Canada.
Hum Mov Sci. 2014 Dec;38:331-42. doi: 10.1016/j.humov.2014.07.006. Epub 2014 Nov 19.
Although graphomotor differences and variability of performance have been observed in children with attention deficit hyperactivity disorder (ADHD), no study has investigated whether this variability manifests in the kinematic graphomotor domain in adults with ADHD. Fourteen ADHD and 20 control participants wrote a novel grapheme and common word on a digitizing tablet 30 times each, with ADHD participants counterbalanced on and off stimulant medication. Variability of graphomotor fluency was significantly greater in ADHD versus control participants only in the novel writing task, both on, F(1,31)=5.988, p=.020, and off stimulant medication, F(1,32)=8.789, p=.006. Results suggest that motor control differences in ADHD are not limited to childhood and extend into adulthood. Given sufficient additional research, variability of kinematic graphomotor fluency may increase the sensitivity/specificity of differential diagnoses and/or represent a biomarker for ADHD.
尽管在患有注意力缺陷多动障碍（ADHD）的儿童中已观察到书写运动差异和表现变异性，但尚无研究调查这种变异性是否在患有ADHD的成年人的运动学书写运动领域中表现出来。14名ADHD参与者和20名对照参与者在数位板上各书写一个新的字母和一个常用单词30次，ADHD参与者在服用和未服用兴奋剂药物的情况下进行平衡。仅在新的书写任务中，ADHD参与者的书写运动流畅性变异性显著大于对照参与者，无论是在服用兴奋剂药物时，F(1,31)=5.988，p=.020，还是在未服用兴奋剂药物时，F(1,32)=8.789，p=.006。结果表明，ADHD中的运动控制差异不仅限于儿童期，还会延伸至成年期。如果有足够的额外研究，运动学书写运动流畅性的变异性可能会提高鉴别诊断的敏感性/特异性和/或代表ADHD的生物标志物。
