Volume 4, Issue 1 (Winter 2013 -- 2013)                   BCN 2013, 4(1): 50-56 | Back to browse issues page

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Ghanizadeh A, Safavi S, Berk M. Clock Face Drawing Test Performance in Children with ADHD . BCN. 2013; 4 (1) :50-56
URL: http://bcn.iums.ac.ir/article-1-313-en.html
1- Research Center for Psychiatry and Behavioral Sciences, Shiraz University of Medical Sciences, Hafez Hospital, Shiraz, Iran.
2- School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
3- Deakin University, School of Medicine and Barwon Health, Geelong, Australia.

Introduction: The utility and discriminatory pattern of the clock face drawing test in ADHD is unclear. This study therefore compared Clock Face Drawing test performance in children with ADHD and controls.

Methods: 95 school children with ADHD and 191 other children were matched for gender ratio and age. ADHD symptoms severities were assessed using DSM-IV ADHD checklist and their intellectual functioning was assessed. The participants completed three clock-drawing tasks, and the following four functions were assessed: Contour score, Numbers score, Hands setting score, and Center score

Results: All the subscales scores of the three clock drawing tests of the ADHD group were lower than that of the control group. In ADHD children, inattention and hyperactivity/impulsivity scores were not related to free drawn clock test scores. When pre-drawn contour test was performed, inattentiveness score was statistically associated with Number score while none of the other variables of age, gender, intellectual functioning, and hand use preference were associated with that kind of score. In pre-drawn clock, no association of ADHD symptoms with any CDT subscales found signi.cant. In addition, more errors are observed with free drawn clock and Pre-drawn contour than pre-drawn clock.

Discussion: Putting Numbers and Hands setting are more sensitive measures to screen ADHD than Contour and Center drawing. Test performance, except Hands setting, may have already reached a developmental plateau. It is probable that Hand setting de.cit in children with ADHD may not decrease from age 8 to 14 years. Performance of children with ADHD is associated with complexity of CDT.

Type of Study: Original | Subject: Cellular and molecular Neuroscience
Received: 2012/12/18 | Accepted: 2013/03/2 | Published: 2013/03/2

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