• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제27권3호
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• pp.207-215
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• 2016

Objectives: This study aimed to investigate the differences in the facial emotion recognition and discrimination ability between children with attention-deficit hyperactivity disorder (ADHD) and autism spectrum disorder (ASD). Methods: Fifty-three children aged 7 to 11 years participated in this study. Among them, 43 were diagnosed with ADHD and 10 with ASD. The parents of the participants completed the Korean version of the Child Behavior Checklist, ADHD Rating Scale and Conner's scale. The participants completed the Korean Wechsler Intelligence Scale for Children-fourth edition and Advanced Test of Attention (ATA), Penn Emotion Recognition Task and Penn Emotion Discrimination Task. The group differences in the facial emotion recognition and discrimination ability were analyzed by using analysis of covariance for the purpose of controlling the visual omission error index of ATA. Results: The children with ADHD showed better recognition of happy and sad faces and less false positive neutral responses than those with ASD. Also, the children with ADHD recognized emotions better than those with ASD on female faces and in extreme facial expressions, but not on male faces or in mild facial expressions. We found no differences in the facial emotion discrimination between the children with ADHD and ASD. Conclusion: Our results suggest that children with ADHD recognize facial emotions better than children with ASD, but they still have deficits. Interventions which consider their different emotion recognition and discrimination abilities are needed.

• 생물정신의학
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• 제11권2호
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• pp.146-154
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• 2004

Objective:Attention deficit hyperactivity disorder(ADHD) is the most common childhood psychiatric disorder, affecting 3-5% of school-aged children. Although the biological basis of ADHD is unknown, family studies provide strong evidence that ADHD has a genetic basis. Recent genetic studies have suggested associations between ADHD and serotonin 1B(5HT1B) receptor gene G861C polymorphism. The aim of this study is to test for the association between ADHD and 5HT1B receptor gene G861C polymorphism in Korean population. Method:We processed DNA extraction and genotyping. 106 Korean children with ADHD and their parents were analyzed using the transmission disequilibrium test(TDT) and haplotype-based haplotype relative risk (HHRR). And the ADHD children were compared with 212 age and gender matched normal controls. Results:There was no statistical difference of distributions between ADHD cases and controls. We did not observe any preferential transmission of alleles of 5HT1B receptor gene G861C polymorphism in ADHD. Conclusions:Though there is the possibility of failing to detect small genetic effects, our results show no evidence of an association between ADHD and 5HT1B receptor gene G861C polymorphism in the Korean population and indicate that it is unlikely that the 5HT1B receptor is implicated in the susceptibility to ADHD.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제20권2호
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• pp.61-67
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• 2009

Objectives: The purpose of this study was to examine the performance and electrophysiological characteristics of drug-naive children with attention-deficit/hyperactivity disorder(ADHD) during the Go/NoGo task. Methods: Twenty-three boys with ADHD and 18 age-matched normal boys were recruited at a child psychiatric outpatient clinic in Seoul. All subjects were assessed by the Kiddie Schedules for Affective Disorders and Schizophrenia Present and Lifetime version. The investigator also assessed all subjects using the ADHD Rating Scale-IV(ADHDRS). Event-related potentials were recorded from 8 scalp electrodes during the visual Go/NoGo task. Results: Children with ADHD showed a larger mean of standard deviation of response time during the Go/NoGo task than normal children. The temporal N200 and P300 amplitudes were larger in children with ADHD relative to controls. The parietal N200 and P300 latencies were more prolonged in children with ADHD compared to normal controls. Conclusion: These results suggest that psychotropic-naive children with ADHD may have more variable performance ability, more difficulty in discriminating visual stimuli, and slower information processing speed than their normal age-matched counterparts.

• Child Health Nursing Research
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• 제17권2호
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• pp.127-135
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• 2011

Purpose: The purpose of this study was to examine the relationship of mothers' recognition of Attention deficit hyperactivity disorder (ADHD), parenting stress and family support in mothers of children diagnosed with ADHD. Methods: The data were collected from December 24, 2009 to July 23, 2010. The participants were 141 mothers of children diagnosed with ADHD and who lived in D city. Descriptive statistics, t-test, ANOVA, Pearson correlation coefficients with SPSS 17.0 were used to analyze the data. To determine the most effective variable (mothers' recognition, parenting stress and family support) to predict parental stress, data were analyzed using canonical correlation with SAS 9.1 TS. Results: Canonical correlation analysis revealed that professional and teachers' roles of the 3 sub-domains of mothers' recognition were the most outstanding variables in predicting parenting stress. Parental distress/parent-child dysfunctional interaction of parenting stress was the most outstanding variable in predicting both mothers' recognition and family support. Spouse cooperation in family support was the most outstanding variable in predicting parenting stress. Conclusion: The results suggest that strengthening parents' recognition of ADHD and supporting interventions are important for reducing parenting stress. Professional and teachers' roles, parental distress/parent-child dysfunctional interaction and spouse cooperation should be included in the contents of structured programs.

• Child Health Nursing Research
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• 제17권2호
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• pp.136-144
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• 2011

Purpose: The purpose of this study was to analyze teaching status and knowledge about children with Attention Deficit Hyperactivity Disorder (ADHD) in elementary school teachers. Methods: The participants of this study were 204 elementary school teachers in Busan. From July to September 2010, the researchers collected data by using self-report questionnaires consisted of questions about their teachers' characteristics and teaching status and KADDS (36 items) developed by Sciutto, Terjesen and Frank. Frequency, percentage, arithmetic mean, standard deviation, t-test and ANOVA were used to analyze the data using SPSS WIN 16.0 program. Results: Less than 50% of the participants had previous education on ADHD. According to this experience, there were significant differences in participants' knowledge about children with ADHD (t=4.703, p<.001). For the 36 items, participants had an average of $19.19{\pm}4.58$ points out of a possible 36. Moreover, lack of knowledge about teaching children with ADHD and communication problems with the parents of these children were considered to be the most disturbing factors. Conclusion: These results suggest that networks among teachers, parents and medical care professionals should be established. The results also indicate that educational programs for elementary school teachers should be developed in order to identify and teach children with ADHD appropriately.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제23권2호
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• pp.63-68
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• 2012

Objectives : The purpose of this study was to examine the association of exposures to heavy metals with positive diagnosis for attention-deficit hyperactivity disorder (ADHD) and Tourette's syndrome (TS). Methods : Study participants included 27 children diagnosed with ADHD ($9.9{\pm}2.9$ years of age), 21 diagnosed with Tourette's disorder ($10.7{\pm}2.2$ years of age), and 45 normal control children ($9.6{\pm}0.5$ years of age). A Perkin-Elmer mass spectrometer was used to measure the concentrations of 5 heavy metals (Pb, Cd, U, Be, Hg) in hair samples obtained from each participant. Each heavy metal concentration was compared among the groups by use of a Kruskal-Wallis test. Results : The levels of lead (p=.006) and cadmium (p=.037) observed in the hair of children diagnosed with ADHD were significantly higher than those found in the control subjects. There were no significant differences observed for heavy metal levels when comparing TS and control subjects. Conclusion : We confirmed that lead exposure is a risk factor for ADHD. We also identified that cadmium may be a new candidate risk factor for manifestation of ADHD. We did not find an association between heavy metals and manifestation of TS.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제27권1호
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• pp.31-38
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• 2016

Pharmacotherapy is considered the first line therapy in attention-deficit hyperactivity disorder (ADHD). Many patients also choose complementary medicine such as dietary supplements. Omega-3 has shown some efficacy for improving ADHD symptoms in several studies. The goal of this review is to integrate the previous research findings on omega-3 and understand the issues worth considering in the treatment of ADHD. The terms "attention deficit disorder with hyperactivity", "omega-3", and "dietary supplements" were searched on PubMed, Cochrane, and Google scholar. The search was further limited to clinical trials, reviews, and meta-analyses. Trials that examined treatments for ADHD, used randomized design, and placebo-controlled trials were included. Eighteen clinical trials with a total of 1,141 participants were included in this review. Fifteen trials had parallel designs, comparing an omega-3/6 polyunsaturated fatty acid (PUFAs) or a combination of both to a placebo and three compared omega-3/6 PUFAs to a placebo and psycho-stimulants. Seven of the included trials showed significant improvements in groups receiving omega-3/6 PUFAs compared to placebo groups, however, 11 trials showed no significant differences. Evidence that PUFAs supplementation provides benefits for ADHD was yet limited. Mixed results were due to selection variability criteria, variability of supplementation, and short follow-up intervals.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제26권3호
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• pp.190-196
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• 2015

Objectives : The aim of this study was to determine whether children with Tourette disorder (TD) have functional impairment and executive dysfunction in comparison to children with attention-deficit hyperactivity disorder (ADHD) and non-affected controls. Methods : From January 2006 to December 2013, 45 children and adolescents with TD and 50 children and adolescents with ADHD diagnosed at the Soonchunhyang University Bucheon Hospital and 50 non-affected controls were enrolled in this study. Functional impairment of the subjects was assessed using the Child and Adolescents Functioning Impairment Scale (CAFIS), parent and teacher versions. In addition, neuropsychological tests including Stroop color-word Test, Finger windows Test (FWT), and Digit span were administered. Outcomes were compared across the TD, ADHD, and non-affected controls. Results : No difference in CAFIS-parent and CAFIS-teacher results was observed between children with TD and non-affected controls, whereas, children with ADHD showed more impairments relative to non-affected controls in the CAFIS-parent. According to the Stroop color-word Test, FWT, and Digit span, executive function in children with TD did not differ from non-affected controls. Children with ADHD had poorer performance in measures of the Stroop color-word Test compared to children with TD. Conclusion : Children and adolescents with TD but not ADHD were not significantly different from non-affected controls on most measures of functional impairment and executive function. These findings suggest that an education program and intervention for children with TD would be important to reducing the stigma of TD.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제26권3호
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• pp.183-189
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• 2015

Objectives : The aim of this study was to investigate Korean Wechsler Intelligence profiles and specific abilities related to attention problem of children with attention-deficit hyperactivity disorder (ADHD). Methods : The Korean Wechsler Intelligence Scale for Children-fourth edition (K-WISC-IV) and Advanced Test of Attention (ATA) were administered to 91 children and adolescents (age $8.5{\pm}2.6$ years, 73 boys) with ADHD. Pearson correlation and independent t-tests were used. Results : The means of Working Memory Index (WMI) and Processing Speed Index (PSI) showed a score of low average in K-WISC-IV. WMI scores for the K-WISC-IV showed clinically significant correlations with omission errors, commission errors, and response time variability on auditory ATA. PSI scores also showed significant correlations with response time and variability on visual ATA. In addition, significantly lower digit span backward scores were observed in hyperactive-impulsive/combined subtypes compared to inattentive subtype (t=3.60, p<.001). Conclusion : Children with ADHD showed significantly lower scores in WMI and PSI which were clinically correlated with ATA scores, and hyperactive-impulsive/combined subtypes showed poorer working memory functions in WMI. Follow-up studies are proposed.

• 정신신체의학
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• 제19권2호
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• pp.74-82
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• 2011

연구목적: 본 연구의 목적은 소아 청소년 정신과 외래를 방문하는 주의력결핍 과잉행동장애(Attention-Deficit/Hyper-activity Disorder, ADHD) 아동의 주의력 결핍 정도와 심박 변이도(Heart Rate Variability, HRV)의 인자와의 관계를 비교하고 주의력 결핍 과잉행동의 검사 척도를 통한 증상의 정도와 부모 양육 스트레스 정도와의 연관성을 평가하고자 하였다. 방 법: 2007년 8월부터 2009년 7월까지 고려대학교 구로병원 정신건강의학과의 소아 클리닉을 방문하여 ADHD 진단을 받은 환자 중 이전에 약물 치료를 받은 기왕력이 없는 환자를 대상으로 하였다. ADHD 진단 및 평가에 주의력 장애 진단 시스템(ADHD diagnostic system, ADS)과 ADHD 평가 척도(ADHD rating scale, ARS)를 이용하였고, HRV 측정은 5분 동안 시행되는 것으로 평가하였다. 또한 부모의 양육 스트레스 정도를 측정하기 위하여 부모의 양육 스트레스 척도를 이용하였고 지능검사로는 한국판 아동용 웩슬러 지능검사가 이용되었다. Pearson 상관 분석을 통해 ARS 변수, ADS 변수와 HRV의 인자, 양육 스트레스 변수들 간의 상관관계에 대하여 알아보았다. 결 과: ADHD로 진단 받은 59명의 환자가 본 연구에 최종 참여하였다. HRV 인자 중 주파수 영역 분석법에서 저주파 스펙트럼은 ADS 변수 중 반응 시간 변산성(r=0.325, p<0.05)과 유의한 상관관계를 보였으나, 그 외 ADS 변수들과 ARS 변수들과는 유의한 상관 관계를 보이지 않았다. 부모 양육 스트레스에서는 ARS의 부주의 인자의 증상 정도가 심해질수록 부모-자녀의 역기능적 상호작용과 자녀의 기질과 관련된 척도가 유의하게 증가하였고 과활동성 인자의 증상 정도가 심해질수록 부모의 스트레스와 자녀의 기질과 관련된 척도가 유의하게 증가되었으며 그 외에는 유의한 차이를 보이지 않았다. 결 론: 본 연구에서는 ADHD 아동들에서의 임상적 변인과 HRV의 인자 사이에서 일부 연관성을 보여주었다. 따라서 차후 HRV가 임상적으로 ADHD 아동들에 있어서 치료를 받은 후 정신적 할당에 향상되었는지를 알아볼 수 있는 도구 중 하나가 될 가능성을 보여 주는 것이라 할 수 있겠고 이후 이에 따른 양육스트레스의 변화 또한 전향적인 연구가 필요할 것으로 생각된다.