Korean Journal of Biological Psychiatry (생물정신의학)

The Korean Society of Biological Psychiatry (대한생물정신의학회)
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Comparison of Working Memory Among the Subtypes of Child and Adolescent Attention-Deficit/Hyperactivity Disorder

아동.청소년주의력결핍/과잉행동장애 하위유형에 따른 작업기억의 비교

  • Lee, Soyoung Irene (Department of Psychiatry, Soonchunhyang University College of Medicine) ;
  • Lim, Eun-Ji (Department of Psychology, The Catholic University of Korea Graraduate School) ;
  • Park, Joon-Ho (Department of Psychiatry, Soonchunhyang University College of Medicine) ;
  • Jung, Han-Yong (Department of Psychiatry, Soonchunhyang University College of Medicine)
  • 이소영 (순천향대학교 의과대학 정신과학교실) ;
  • 임은지 (가톨릭대학교 일반대학원 심리학과) ;
  • 박준호 (순천향대학교 의과대학 정신과학교실) ;
  • 정한용 (순천향대학교 의과대학 정신과학교실)
  • Published : 2010.05.31
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Abstract

Objectives : This study investigated the differences of working memory among the subtypes of ADHD. Methods : Eighty-one children and adolescents with ADHD and thirty normal controls were recruited. Children with any cognitive disorders and low intelligence were excluded. In order to evaluate the verbal and visuospatial working memory, Digit span and Finger windows tasks were measured, respectively. Performances on these measures between children with ADHD and controls were compared. Further, performances among the groups of ADHD predominantly inattentive(ADHD-IA)(n=40), predominantly hyperactive-impulsive(ADHD-HI)(n= 10), and combined type(ADHD-C)(n=31), were compared. Results : Scores of Finger windows forward task were lower in the ADHD group as compared to the control group, whereas, the Digit span forward showed no difference. Both scores of Digit span backward and Finger windows backward task were lower in the ADHD group than the controls. Children with ADHD-IA performed poorer than children with ADHD-C on the Finger windows backward task. Conclusion : The results of this study showed that children with ADHD have deficits in spatial short-term memory and verbal and visuospatial working memory when compared to normal children. The deficits were evident in children with ADHD-IA subtype and in particular, performance on the visuospatial working memory task in this group was poorer than the ADHD-C group.

Keywords

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