Open Access, Peer-reviewed
pISSN 1015-4817
eISSN 2289-0963
    J Korean Neuropsychiatr Assoc. 2013 May;52(3):143-149. Korean.
    Published online May 31, 2013.
    https://doi.org/10.4306/jknpa.2013.52.3.143
    Copyright © 2013 Korean Neuropsychiatric Association
    Original Article

    Quantitative Electroencephalography Findings in Attention-Deficit Hyperactivity Disorder According to Korean DISC-IV

    Jun Won Kim, MD,1,2 Hyun Jin Kim, MD,1 Doug Hyun Han, MD, PhD,3 Young Sik Lee, MD, PhD,3 Kyung Joon Min, MD, PhD,3 Kounseok Lee, MD,4 and Jaewon Lee, MD5
      • 1Department of Psychiatry, Gongju National Hospital, Gongju, Korea.
      • 2Graduate School, Chung-Ang University, Seoul, Korea.
      • 3Department of Psychiatry, College of Medicine, Chung-Ang University, Seoul, Korea.
      • 4Department of Psychiatry, Samsung Medical Center, Seoul, Korea.
      • 5Department of Psychiatry, Gangnam Eulji Hospital, Eulji University, Seoul, Korea.
    • Address for correspondence: Jaewon Lee, MD. Department of Psychiatry, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul 137-710, Korea. Tel +82-2-3438-1121, Fax +82-2-3438-1001, Email: f_affection@korea.kr
    Received March 05, 2013; Revised March 13, 2013; Accepted April 25, 2013.

    Abstract

    Objectives

    This study was designed to investigate the clinical availability of quantitative electroencephalography (QEEG) as an auxiliary diagnostic tool in attention-deficit hyperactivity disorder (ADHD).

    Methods

    A total 95 participants completed examinations, which included Korean ADHD Rating Scale (K-ARS), Diagnostic Interview Schedule for Children Version IV-Korean Version (DISC-IV), and QEEG. From the result of the DISC-IV, we divided them into three groups, ADHD, ADHD NOS (not otherwise specified), and Normal control. The QEEG was analyzed by the ranges of Hz : delta (1-4 Hz), theta (4-8 Hz), alpha (8-12 Hz), beta (12-25 Hz), and high beta (25-30 Hz).

    Results

    ADHD NOS group showed significantly decreased delta activity (NOS<normal, p=0.003) and increased theta activity (NOS>normal, p=0.044) compared with normal control. ADHD group showed increased high beta activity (ADHD>NOS, p=0.043) compared with NOS group. The z-scores of relative power of theta were negatively correlated with the K-ARS at O1, O2 electrodes of ADHD group. On the other hand, the z-scores of relative power of high beta were negatively correlated with the K-ARS at F7, F8 electrodes of ADHD NOS group.

    Conclusion

    We confirmed QEEG abnormalities in ADHD patients, especially the difference between ADHD NOS and Normal control. Therefore, we expect to use QEEG as the valuable tool to diagnose ADHD accurately.

    Keywords
    ADHD; QEEG; DISC-IV; K-ARS

    Figures

    Fig. 1
    The result of Pearson's correlation analysis between K-ARS and each z-score of relative power in ADHD group. ADHD : Attention-deficit hyperactivity disorder, K-ARS : Korean ADHD Rating Scale.

    Fig. 2
    The result of Pearson's correlation analysis between K-ARS and each z-score of relative power in ADHD NOS group. ADHD : Attention-deficit hyperactivity disorder, NOS : Not otherwise specified, K-ARS : Korean ADHD Rating Scale.

    Tables

    Table 1
    Demographic characteristics of subjects (n=95)

    Table 2
    Comparisons of five different band frequency among three groups

    Notes

    The authors have no financial conflicts of interest.

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