Comparing Intelligence Test Profiles to Assess Tourette's Disorder with Attention-Deficit Hyperactivity Disorder.
10.5765/jkacap.2017.28.1.25
- Author:
Woo Hyun KIM
1
;
Tae Won PARK
;
Juhyun PARK
;
Sang Keun CHUNG
;
Jong Chul YANG
;
Jong Il PARK
;
Eun Ji KIM
;
Eun Cheong CHO
;
Jae Cheol PARK
Author Information
1. Department of Psychiatry, Chonbuk National University Medical School, Jeonju, Korea. ptaewon@jbnu.ac.kr
- Publication Type:Original Article
- Keywords:
Tourette's disorder;
Attention-deficit hyperactivity disorder;
Intelligence test;
Working memory function
- MeSH:
Adolescent;
Child;
Cognition;
Endophenotypes;
Freedom;
Humans;
Intelligence Tests*;
Intelligence*;
Memory;
Memory, Short-Term;
Tourette Syndrome*
- From:Journal of the Korean Academy of Child and Adolescent Psychiatry
2017;28(1):25-30
- CountryRepublic of Korea
- Language:English
-
Abstract:
OBJECTIVES: The study compared the intelligence test profiles of Tourette's Disorder (TD), attention-deficit hyperactivity disorder (ADHD), and TD with ADHD (TD+ADHD) groups. METHODS: The Korean Wechsler Intelligence Scale for Children-third edition (K-WISC-III) and Korean Wechsler Intelligence Scale for Children-fourth edition (K-WISC-IV) were administered to 13 children and adolescents with TD, 17 children and adolescents with ADHD, and 15 children and adolescents with TD+ADHD. Each parameter was compared among the groups using the Kruskal-Wallis test. RESULTS: The mean scores of the freedom from distractibility/working memory index (FD/WMI) and the digit span and arithmetic subtests of the TD+ADHD group were significantly lower than those of the TD group. CONCLUSION: According to the intelligence test results, the comorbid ADHD+TD group showed a significant decrease in working memory compared to the TD group. These findings are similar to those of previous research on cognitive functions and suggest that the TD+ADHD comorbid and TD alone groups exhibit different endophenotypes. The results also imply that WISC-III and WISC-IV, the most commonly used intelligence tests clinically, are effective in evaluating cognitive functions such as attention. Further research is required to confirm these results.
