Psychiatry Investig Search


Psychiatry Investig > Volume 15(2); 2018 > Article
Psychiatry Investigation 2018;15(2):172-177.
DOI:    Published online November 21, 2017.
Comparative Analysis of the WISC between Two ADHD Subgroups
Yoichiro Kubo1,2, Tetsufumi Kanazawa1,3,4, Yasuo Kawabata1, Koyuki Tanaka1, Tatsushi Okayama1, Miho Fujta1, Atsushi Tsutsumi1, Shingo Yokota2, Hiroshi Yoneda1
1Department of Neuropsychiatry, Osaka Medical College, Osaka, Japan
2Department of Psychiatry, Han-nan Hospital, Osaka, Japan
3Department of Psychiatry, The University of Melbourne, Melbourne, Australia
4Florey Institute, Oxidation Biology Unit, Melbourne, Australia
Correspondence  Tetsufumi Kanazawa ,Tel: +81-72-683-1221, Fax: +81-72-683-4810, Email:
Received: April 24, 2017   Revised: June 5, 2017   Accepted: July 12, 2017   Published online: November 21, 2017
The prevalence of attention deficit/hyperactivity disorder (ADHD) in school-age children is 7.2%, and ADHD is divided into clinical subtypes.
The current study explored whether specific cognitive profiles as assessed using the Wechsler Intelligence Scale for Children (WISC)-IV could be obtained for each clinical ADHD subtype (ADHD-Inattentive type and ADHD-Combined type) and investigated the correlation between WISC scores and parental age at their children’s birth or birthweight. The enrolled sample comprised 12 ADHD-I and 15 ADHD-C subjects.
An impaired Processing Speed Index was found in ADHD-I. The age of the father at the child’s birth and birthweight positively correlated with the full scale intelligence quotient (FSIQ) score in the WISC assessment.
Inattentiveness within the behaviors of the children with ADHD-I is partly due to the impaired processing speed, therefore effective support for ADHD will be conducted if educator decreases their speaking speed. Since biological basis of ADHD is still largely unknown, future studies using both psychological and biological methods will reveal the etiology of ADHD. These scientific assessments will provide information for more effective approaches in the care of children with ADHD.
Keywords: Neurodevelopmental disorder, Child and adolescence psychiatry, Cognitive sciences
Facebook Twitter Linked In Google+
Graph View
  • 0 Crossref
  •   Scopus
  • 48 View
  • 6 Download


Browse all articles >

Editorial Office
#522, 27, Seochojungang-ro 24-gil, Seocho-gu, Seoul 06601, Korea
Tel: +82-2-537-6171    Fax: +82-2-537-6174    E-mail:                

Copyright © 2018 by Korean Neuropsychiatric Association. All rights reserved.

Developed in M2community

Close layer
prev next