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KMID : 0368820050440040511
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Journal of the Korean Neuropsychiatr Association
2005 Volume.44 No. 4 p.511 ~ p.517
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The Differences of Psychopathology and Executive Functions According to Intelligence Level in Children with Attention Deficit Hyperactivity Disorder.
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Cheon Eun-Jin
Seo Wan-Seok
Lee Jong-Bum
Kim Jin-Sung
Koo Bon-Hoon
Song Chang-Jin
Sung Hyung-Mo
Bae Jun-Yong
Bai Dai-Seg
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Abstract
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To investigate psychopathology and executive functions of attention deficit hyperactivity disorder (ADHD) children according to intelligence level, this study included 197 ADHD children who visited the outpatient department of neuropsychiatry of YeungNam University Medical Center, from July 2000 to June 2002. The children were divided into groups based on their intelligence levels. They were compared by the Personality Inventory for Children (PIC), Conncers’ Continuous Performence Test (CPT), and Wisconsin Card Sorting Test (WCST). There were significant differences in PIC, on the subscales of verbal development, socialization and autism. In the CPT, there was no significant difference. In the WCST, there were significant differences in the total number of errors, the number of perseverative errors, the number of completed categories and the number of trials needed to complete the first category. Considering these results, the intelligence level of ADHD children is related to their disabilities and behavioral symptoms. Executive functions such as abstract thinking, categorization, working memory and flexibility had significant relationship to the intelligence levels of ADHD children. Therefore, the intelligence level of children with ADHD influences the higher executive functions of regulating attention and information processing rather than attentional functions and capacity alone.
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KEYWORD
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ADHD, Intelligence level, Executive function
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