• 생물정신의학
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• 제25권4호
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• pp.118-124
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• 2018

Objectives Although impulsivity has long been thought as an important factor influencing suicidal behaviors, it is unknown whether impulsivity increases the risk of dying from suicidal behaviors and what specific component among constructs of impulsivity contributes to the risk of dying among suicide attempters. Methods To elucidate the association between impulsivity and medical lethality of suicide attempt among suicide attempters, we consecutively recruited 46 suicide attempters who visited an emergency room of a general hospital located in a metropolitan area, Seoul, Republic of Korea, due to suicide attempts and consented to participate in this study. Then we assessed medical lethality with the Beck Lethality Scale (LS) and impulsivity with the Korean version of the Barratt Impulsiveness Scale-11-Revised (BIS). Demographic variables were obtained from medical records and structured social work reports for suicide attempters. Results Although total scores of the BIS did not correlate with LS scores, only the scores of self-control, that is one of the Barrett's six theoretical constructs of impulsivity in which the higher score indicates less self-control and more impulsivity, had a significant positive correlation with scores of LS (p = 0.003). The association remained significant after adjusting for variables known to affect suicide lethality such as job status, recent alcohol consumption, diagnosis of depressive disorders, and having a plan for suicide (${\beta}=0.429$, p = 0.009). Conclusions Not impulsivity in general, but poor self-control, in particular, predicts lethal suicidal behaviors among suicide attempters. The degree of self-control should be evaluated when assessing patients with elevated suicide risk, and proper measures should be installed to prevent possible future lethal suicide attempts.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제20권1호
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• pp.17-22
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• 2009

Objectives : A higher level of aggression has been reported for children with attention-deficit/hyperactivity disorder (ADHD) than for non-ADHD children. Aggression was shown to have a negative effect on the social functioning of children with ADHD. The ability to recognize facial emotion expression has also been related to aggression. In this study, we examined whether impulsivity and dysfunctional recognition of facial emotion expression could explain the aggressiveness of children with ADHD. Methods : 67 children with ADHD participated in this study. We measured the ability to recognize facial emotion expression by using the Emotion Recognition Test (ERT) and we measured aggression by the T score of the aggression subscale of the Child Behavior Checklist (CBCL). Impulsivity was measured by the ADHD diagnostic system (ADS). Results : The teacher rated level of aggression was related to the score of recognizing negative affect. After controlling for the effect of impulsivity, this relationship is not significant. Only the score of the visual commission errors ex plained the level of aggression of children with ADHD. Conclusion : Impulsivity seems to have a major role in explaining the aggression of children with ADHD. The clinical implication of this study is that effective intervention for controlling impulsivity may be expected to reduce the aggression of children with ADHD.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제32권2호
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• pp.43-50
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• 2021

Objectives: The purpose of this study was to evaluate the effects of a school bullying prevention camp for adolescent perpetrators of school violence. Methods: A total of 95 adolescents (boys=73, girls=22) were included in this study. The changes after the program were evaluated using several self-rating scales for the assessment of the degree of depression, loneliness, impulsivity, self-esteem, and interpersonal reactivity compared with the baseline scales. Results: The school bullying prevention camp significantly reduced the degree of depression severity (z=-5.874, p<0.001) and impulsivity scale (z=-3.861, p<0.001), while increasing self-esteem (z=-2.091, p=0.037). The degree of depression severity (z=-4.635, p<0.001), loneliness (z=-2.168, p=0.030), and impulsivity (z=-2.987, p=0.003) significantly reduced, whereas self-esteem significantly increased (z=-2.221, p=0.026) for male students who had no history of child abuse. However, there were no significant changes after the program for the degree of depression, loneliness, impulsivity, self-esteem, and interpersonal reactivity among female students with a history of child abuse. Conclusion: The results of our study suggest that the development of diverse standardized guidance programs is necessary for teenagers with different characteristics and backgrounds. Such programs are expected to be more effective in preventing school violence.

• 한국산학기술학회논문지
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• 제19권1호
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• pp.368-378
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• 2018

본 연구를 통하여 적대성과 강박증상의 관계를 알아보고, 특히 외현적 적대성과 내현적 적대성이 강박증상에 대해 차별적인 영향을 갖는지 밝히고자 하였다. 아울러 적대성이 강박증상에 대해 끼치는 영향에 있어서 충동성이 조절효과를 갖는지도 검증하고자 했다. 150명의 온라인 학생을 대상으로 Buss Durkee Hostility 척도, 강박증상 척도 개정판, 바렛 충동성 척도를 실시하여 적대성, 강박증상, 충동성을 각각 측정하였다. 150명의 온라인 대학생의 자료를 수집하여 이 자료에 대해 상관과 조절다중회귀 모형을 분석하였다. 그 결과 외현적 적대성과 강박행동간의 상관이 유의미하였고 강박사고는 외현적 적대성 및 내현적 적대성과 모두 유의미한 상관을 나타냈다. 회귀분석을 한 결과 내현적 적대성이 강박사고와 강박행동을 증진시키는 효과가 있었다. 내현적 적대성이 강박증상에 영향을 끼치는 관계에 있어서 충동성이 조절 변수로서 기여하는 역할을 확인한 분석 결과, 충동성은 내현적 적대성이 강박 사고에 미치는 영향에 있어서만 조절역할을 하였고 외현적 적대성의 영향에서는 유의미한 조절역할을 하지 않는 것으로 나타났다. 이러한 결과를 바탕으로 하여 연구의 함의와 제한점에 대해 논하였다.

• Human Ecology Research
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• 제52권6호
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• pp.639-649
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• 2014

The main purpose of this study was to find the relationship between the delinquency-onset time in the source and the continuity of delinquency. In order to achieve this objective, we divided 350 first-year high school students into three groups early-onset type, late-onset type, and non-delinquent adolescents on the basis of the delinquency onset. The results of this study were as follow: (1) for the boys, the early-onset type shows a higher continuity of delinquency than both the late-onset type and the general adolescents. On the other hand, for the girls, the early-onset type shows a higher continuity of delinquency than the late-onset type, but there was no difference in the persistence duration between the late-onset type and the non-delinquent adolescents. (2) For the boys, the examination reveals that the early-onset type has a higher degree of sensation seeking and impulsivity than the general adolescents. In addition, the early-onset type shows a higher degree of sensation seeking than the late-onset type, whereas the two show no difference in impulsivity. For the girls, sensation seeking did not show any difference depending on the delinquency onset. However, more impulsivity appeared in the early-onset type than in the late-onset type or the non-delinquent adolescents. (3) The relative priorities of variables determining the group to which the students belong on the basis of the delinquency onset are in the order of sensation seeking and juvenile impulsivity. Therefore, this study, suggests that the early-onset type requires a different kind of intervention than the late-onset type.

• 대한불안의학회지
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• 제16권1호
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• pp.41-48
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• 2020

Objective : There have been limited scientific studies differentiating those who attempt suicide from those who think about suicide but do not attempt suicide. Altered event-related potential (ERP) performance, such as GoNogo ERP has been regarded as the neurocognitive processes associated with behavioral inhibition and poor impulse control. The purpose of this study was to investigate the association between Nogo ERP and suicide attempt. Methods : A total of 63 participants (33 participants with suicide ideation and 30 with suicide attempt) were recruited, and performed GoNogo tasks during the electroencephalogram measurement. Depression, anxiety, emotional regulation and impulsivity were evaluated by self-rating scales. The clinical measures and Nogo P3 component were compared between the groups. The correlational analyse was conducted to evaluate the relationship between the clinical characteristics and the Nogo P3 component. Results : Participants with suicide attempt significantly decreased the Nogo P3 amplitudes at the frontal-central electrode than participants with suicide ideation (p=0.004, FDR adjusted p=0.032). In the correlation analysis, the Nogo P3 amplitude at frontal-central electrode was correlated with the total score of the Barrett impulsivity scale (r=-0.383, p=0.002), attentional impulsivity (r=-0.365, p=0.003) and motor impulsivity (r=-0.389, p=0.002) subscales of the Barrett impulsivity scale. Conclusion : These findings suggest that the decreased Nogo P3 amplitude may be one of the candidates of biological marker for poor impulse control in those who attempt suicide.

• 한국산학기술학회논문지
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• 제16권11호
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• pp.7607-7616
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• 2015

본 연구는 청소년의 SNS(Social Network Service) 이용시간에 따른 우울 및 충동성의 차이에 대해 알아보고자 하였다. 이를 위하여 2013년 12월 27일부터 2014년 1월 3일까지 수집된 '2014년 청소년 전자기기 과몰입 실태와 예방방안' 연구 설문 중 서울지역 중 고등학생 1,008명의 데이터를 활용하였다. 이 중 SNS 이용시간 상위 33%(N=364)와 하위 33%(N=319)의 자료를 추출하여 두 집단을 구성하였고, 성별을 통제한 후 두 집단의 우울 및 충동성의 차이를 살펴보기 위하여 Mplus 7.31 프로그램을 사용해 최대우도법 추정을 적용한 구조방정식모형(SEM) 분석을 실시하였다. 분석 결과, SNS 이용시간에 따른 집단 간 우울 및 충동성 수준은 통계적으로 의미 있는 차이를 보였다. 즉 우울과 충동성에 성별이 미치는 영향력을 통제했을 때, 청소년의 우울 및 충동성 수준은 SNS 이용시간 하위집단 보다 SNS 이용시간 상위집단에서 더 높게 나타났다. 이것은 SNS 이용시간이 많을수록 청소년의 우울 및 충동성이 높아질 가능성이 있음을 의미한다.

• 지역사회간호학회지
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• 제32권3호
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• pp.325-343
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• 2021

Purpose: The purpose of this study is to determine the results of a meta-analysis of impulsivity variables related to self-destructive behavior of South Korean adolescents. Methods: A meta-analysis was carried out according to the Cochrane guidelines criteria and the quality of the studies was evaluated using the JBI checklist. 2,333 studies were collected through the databases of RISS, KISS, and DBpia on 'impulsivity' published from 2000 to 2020. Self-destructive behavior-related variables were largely categorized into three areas (addiction, violence, and delinquency), and six subgroups. Results: Using the correlations with impulsivity in the final 53 papers, 231 self-destructive behavior-related variables were identified. The social delinquency showed the closest relationship with impulsivity (ES=0.34, 95% CI: 0.23~0.43, p<.001), followed by addictive behavior (ES=0.28, 95% CI: 0.24~0.32, p<.001), personal delinquency (ES=0.28, 95% CI: 0.23~0.32, p<.001), violence against others, violence against self, and substance addiction. These effects were identified as ranging from magnitudes of 0.23 to 0.27 based on the criteria of Cohen. Conclusion: To improve the reliability of the results of meta-analysis, more studies on the impulsivity of adolescents should be carried out so that the results can be accumulated, and the effectiveness can be examined in-depth later.

• 한국콘텐츠학회논문지
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• 제21권9호
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• pp.502-515
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• 2021

본 연구는 학교 밖 청소년의 부정적 사건 경험이 우울과 충동성을 이중매개로 비행에 미치는 영향의 규명을 목적으로 하였다. 이를 위해 본 연구는 학업중단 청소년 패널에서 1차 조사 당시 학업중단 상태였던 청소년 표본을 대상으로 PROCESS macro for SPSS의 모델 6을 활용하여 부정적 사건 경험이 비행에 미치는 직접적 영향뿐만 아니라 우울과 충동성을 통한 매개 및 이중매개효과를 분석하였다. 주요 결과는 다음과 같다. 첫째, 학교 밖 청소년의 부정적 사건 경험은 비행에 유의미한 정적 영향을 미쳤다. 둘째, 학교 밖 청소년의 우울은 부정적 사건 경험이 비행에 미치는 영향을 매개하지 않았다. 셋째, 학교 밖 청소년의 충동성은 부정적 사건 경험이 비행에 미치는 영향을 매개했다. 넷째, 학교 밖 청소녀의 우울과 충동성은 부정적 사건 경험이 비행에 미치는 영향을 이중매개했다. 이상의 연구 결과를 기반으로 부정적 사건을 경험한 학교 밖 청소년의 비행을 예방하기 위한 다양한 개입 전략에 대하여 논의하였다.

• 디지털융복합연구
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• 제17권1호
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• pp.269-280
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• 2019

본 연구의 목적은 남녀 대학생의 자기결정성, 우울, 자아존중감, 충동성, 스마트폰 과의존간의 관계를 탐색함으로써 이들 요인이 대학생의 스마트폰 과의존에 미치는 영향을 규명하기 위함이다. 2개 대학교에 재학중인 남녀 대학생 263명을 대상으로 자가보고형 설문조사를 실시하였다. 연구결과 남학생의 스마트폰 과의존에 영향을 미치는 요인은 스마트폰의 중요성에 대한 인식(${\beta}=.411$, p<.001), 충동성(${\beta}=.204$, p=.007)과 우울(${\beta}=.200$, p=.040)인 것으로 나타났다. 여학생의 스마트폰과의존에 영향을 미치는 요인은 스마트폰의 중요성에 대한 인식(${\beta}=.630$, p<.001)과 충동성(${\beta}=.185$, p=.010) 이었다. 본 연구결과를 바탕으로 남녀 대학생의 충동성 조절 및 스마트폰에 대한 왜곡된 인식 변화를 통해서 남녀 대학생의 스마트폰 과의존을 예방하기 위한 맞춤형 프로그램 개발이 필요하다.