Causal model of insight and psychopathology based on the PANSS factors: 1-year cross-sectional and longitudinal revalidation.

Hwang, Samuel Suk-Hyun,Chang, Jae Seung,Lee, Kyu Young,Kim, Se Hyun,Ahn, Yong Min,Kim, Yong Sik Clinical Neuroscience Publishers 2009 International clinical psychopharmacology Vol.24 No.4

<P>This study presents results of a 1-year follow-up investigation of the causal model of insight in schizophrenia using a subsample of acute patients starting or switching to amisulpride included in an earlier study. Our causal model of insight based on the Positive and Negative Syndrome Scale factors, with the positive, negative, and autistic preoccupation factors designated as the primary predictors, and the activation factor as a mediating variable of insight, was examined for fitness at the stabilized stage (8 week) and at the chronic stage (1 year) using the structural equation modeling method. Results showed that the intercorrelations among the factors and regression coefficients toward insight changed in their magnitudes, but the validity of our hypothesized model of insight was still confirmed for both the stages with nearly perfect goodness-of-fitness indices. The fitness of the model was also confirmed for the longitudinal changes in the scores of insight and psychopathology. An alternative model, which included the anxiety/depressive factor as a second mediating variable between insight and the positive and negative factors, was also found to be valid for both the stages. A post-hoc causal model with anxiety/depressive factor showed tentative evidence favoring anxiety/depressive variable predicting insight than the other way around.</P>

Validity and Reliability of Korean Version of Behavior Problems Inventory in Autism Spectrum Disorder and/or Intellectual Developmental Disorder

Samuel Suk-Hyun Hwang,Jangho Park,Sohee Kim,Gayoung Lee,Yeni Kim,Soo-Young Bhang 대한소아청소년정신의학회 2018 소아청소년정신의학 Vol.29 No.1

Objectives: Problem behaviors pose a great obstacle to daily functioning in children with neurodevelopmental deficits and are an important target for treatment. In this study, we translated the Behavior Problems Inventory (BPI)-01 into Korean language and tested its psychometric properties. Methods: We attained the approval of the BPI author and performed standard translation-back translation. Then, professional caregivers examined appropriateness according to cultural and situational contexts in order to make necessary modifications of the Korean version of the BPI. Results: The BPI-01, Korea-Scales of Independent Behavior-Revised (K-SIB-R), and Child Behavior Checklist were completed for 98 autistic spectrum disorder or intellectual development disorder participants (mean age=28.3, standard deviation=7.3, range=10.1–51.7). The inter-rater reliability of the BPI-01 was found to be high (r=0.992–1.000). As for the results for concurrent validity for subscale items of BPI-01 and scales of SIB, correlations between SIB and BPI-01 subscales were statistically significant (r=0.357–0.672). Discussion: The Korean version of the BPI-01 showed good psychometric properties with high reliability and sufficient convergent validity. Further examination of the validity of BPI-01 should be carried out with inclusion of younger aged children and a closer look at less frequently occurring symptoms.

개인차 변인으로서의 정서복잡성의 개념화

황석현(Samuel Suk-Hyun Hwang),민경환(Kung-Hwan Min) 서울대학교 심리과학연구소 1998 心理科學 Vol.7 No.1

본 논문은 분화와 통합의 개념들이 여러 분야에서 어떻게 사용되고 있는가를 특히 인지복잡성 파라다임에 초점을 맞추어 개관하였다. 본 논문에서는 정서복잡성을 정서와 관련된 정보처리의 복잡성이라는 개인치 변인으로 개념화하였다. 본 개관에 기초하여, 개인내의 정서구조는 일반적인 정보처리 과정과는 독립적인 구조일 수 있으며, 정서 복잡성이 인지적 능력과 정서적 유능성에 대한 기존의 상반된 연구결과들을 설명하는 데에 유용한 개념이라는 점을 제안하였다. 끝으로, 앞으로의 연구방향이 제시되었다. The present article reviews the use of concepts of differentiation and integration in various fields, with a particular focus on cognitive complexity paradigm and conceptualizes emotional complexity on processing emotion-relevant information. It is thereby proposed the complexity of emotional structure is independent form the complexity of general cognitive information processing and that emotional complexity will be a useful concept that may help to clarify and resolve the discrepant findings concerning cognitive ability and emotional competence. Finally, relevant research findings and the directions for future investigations are discussed.

The Conceptualization of Emotional Complexity as an Individual Difference Variable

Min, Kyung-Hwan,Hwang, Samuel Suk-Hyun 서울大學校 社會科學大學 心理科學硏究所 1998 心理科學 Vol.7 No.1

본 논문은 분화와 통합의 개념들이 여러 분야에서 어떻게 사용되고 있는가를 특히 인지복잡성 파라다임에 초점을 맞추어 개관하였다. 본 논문에서는 정서복잡성을 정서와 관련된 정보처리의 복잡성이라는 개인차 변인으로 개념화하였다. 본 개관에 기초하여, 개인내의 정서구조는 일반적인 정보처리 과정과는 독립적인 구조일 수 있으며, 정서복잡성이 인지적 능력과 정서적 유능성에 대한 기존의 상반된 연구 결과들을 설명하는 데에 유용한 개념이라는 점을 제안하였다. 끝으로, 앞으로의 연구방향이 제시되었다. The present article reviews the use of concepts of differentiation and integration in various fields, with a particular focus on cognitive complexity paradigm and conceptualizes emotional complexity as an individual difference variable that reflects individual's degree of complexity in processing emotion-relevant information. It is thereby proposed that complexity of emotional structure is independent from the complexity of general cognitive information processing and that emotional complexity will be a useful concept that may help to clarify and resolve the discrepant findings concerning cognitive ability and emotional competence. Finally, relevant research findings and the directions for future investigations are discussed.

Factor Structure, Reliability and Validity of Korean Version of the Yale Food Addiction Scale 2.0 (YFAS 2.0) for Children and Adolescents

Eun Jin Park,Samuel Suk-Hyun Hwang,Marc N Potenza,Ashley N,Mi-Sun Lee,Soo-young Bhang(방수영) 대한소아청소년정신의학회 2019 대한소아청소년정신의학회 학술대회논문집 Vol.2019 No.11

한국판 문제행동 평가도구(Behavior Problems Inventory-01) 표준화 연구

최미지(Miji Choi),김예니(Yeni Kim),반지정(Ji-Jeong Ban),황석현(Samuel Suk-Hyun Hwang),김붕년(Bung-Nyun Kim),양영희(Young-Hui Yang) 대한소아청소년정신의학회 2017 소아청소년정신의학 Vol.28 No.4

Objectives: The purpose of this study was to examine the reliability and validity of the Korean version of the Behavior Problems Inventory (BPI-01) among children and adolescents aged between 3 and 18. Methods: The control group consisting of one hundred children and adolescents was recruited from schools and the patient group consisting of forty one children and adolescents with autism spectrum disorder were recruited from a hospital. We compared the measurements of both groups. To assess the concurrent validity of the BPI-01, we compared the problem behavior index of the Korean Scale of Independent Behavior-Revised (K-SIB-R) and, to assess the discriminant validity, we compared the Korean version of the Child Behavior Checklist (K-CBCL). The Cronbach’s alpha of the BPI-01 was measured to assess its reliability. Correlation analyses between the BPI-01 and the other scale were carried out to examine the former’s concurrent and discriminant validity. Results: The patient group showed a significantly higher score for all three subscales of the BPI than the control group. The Cronbach’s alpha was 0.92 for the total severity score of the BPI and ranged between 0.67–0.89 for each subscale in the patient group. All subscales of the BPI-01’s, i.e., self injurious behavior, stereotyped behavior and aggressive/destructive behavior, were significantly correlated with the corresponding subscales of the K-SIB-R. The BPI-01 generally did not demonstrate any significant correlation with emotional items such as anxiety/depression in the K-CBCL. Especially, the BPI-01’s stereotyped behavior subscale showed little correlation with externalizing behaviors such as social problems and aggressive behaviors. Conclusion: This study found that the Korean version of BPI-01 is a reliable and valid behavior rating instrument for problem behavior in developmental disabilities among children and adolescents.

Serum BDNF levels in patients with gambling disorder are associated with the severity of gambling disorder and Iowa Gambling Task indices

Choi, Sam-Wook,Shin, Young-Chul,Mok, Jung Yeon,Kim, Dai-Jin,Choi, Jung-Seok,Suk-Hyun Hwang, Samuel Akadémiai Kiadó 2016 JOURNAL OF BEHAVIOURAL ADDICTIONS Vol.5 No.1

<P><B>Background and aims</B></P><P>Gambling disorder (GD) shares many similarities with substance use disorders (SUDs) in clinical, neurobiological, and neurocognitive features, including decision-making. We evaluated the relationships among, GD, decision-making, and brain-derived neurotrophic factor (BDNF), as measured by serum BDNF levels.</P><P><B>Methods</B></P><P>Twenty-one male patients with GD and 21 healthy sex- and age-matched control subjects were evaluated for associations between serum BDNF levels and the Problem Gambling Severity Index (PGSI), as well as between serum BDNF levels and Iowa Gambling Task (IGT) indices.</P><P><B>Results</B></P><P>The mean serum BDNF levels were significantly increased in patients with GD compared to healthy controls. A significant correlation between serum BDNF levels and PGSI scores was found when controlling for age, depression, and duration of GD. A significant negative correlation was obtained between serum BDNF levels and IGT improvement scores.</P><P><B>Discussion</B></P><P>These findings support the hypothesis that serum BDNF levels constitute a dual biomarker for the neuroendocrine changes and the severity of GD in patients. Serum BDNF level may serve as an indicator of poor decision-making performance and learning processes in GD and help to identify the common physiological underpinnings between GD and SUDs.</P>