Psychiatry Investigation

Original Article

November 5, 2021

Smartphone Addiction Proneness Is Associated With Subjective-Objective Sleep Discrepancy in Patients With Insomnia Disorder

Jeewon Lee, Han-Yong Jung, Soyoung Irene Lee, HyunChul Youn, Shin-Gyeom Kim

Psychiatry Investig. 2021;18(11):1035-1043.

Objective Subjective reports of patients with insomnia often show a discrepancy with their objective assessments of sleep. We aimed to assess subjective-objective sleep discrepancy in subjects with insomnia disorder as...

Original Article

September 10, 2021

Prevalence and Factors Associated With Elder Abuse in Community-Dwelling Elderly in Korea: Mediation Effects of Social Support

Yu Jeong Lee, Yong Kim, Jong-Il Park

Psychiatry Investig. 2021;18(11):1044-1049.

Objective The objectives of this study were to investigate the factors associated with elder abuse and the mediation effects of social support in a community-dwelling elderly population in Korea. Methods This...

Original Article

October 29, 2021

The Impact of Maternal Adverse Childhood Experiences on Offspring’s Internalizing and Externalizing Problems

Na Ri Kang, Young Sook Kwack, Jeong-Kook Song, Moon-Doo Kim, Joon Hyuk Park, Bung-Nyun Kim, Duk-Soo Moon

Psychiatry Investig. 2021;18(11):1050-1057.

Objective Adverse childhood experiences (ACEs) are associated with negative physical and mental health outcomes across the lifespan, but research on intergenerational transmission of maternal ACEs and its impact on the...

Original Article

November 5, 2021

A Call for a Rational Polypharmacy Policy: International Insights From Psychiatrists

Yukako Nakagami, Kohei Hayakawa, Toru Horinouchi, Victor Pereira-Sanchez, Marcus P.J. Tan, Seon-Cheol Park, Yong Chon Park, Seok Woo Moon, Tae Young Choi, Ajit Avasthi, et al.

Psychiatry Investig. 2021;18(11):1058-1067.

Objective Recently, rational polypharmacy approaches have been proposed, regardless of the lower risk and cost of monotherapy. Considering monotherapy as first-line treatment and polypharmacy as rational treatment, a balanced attitude...

Original Article

October 29, 2021

Identification of Central Symptoms in Depression of Older Adults With the Geriatric Depression Scale Using Network Analysis and Item Response Theory

Kyoung Min Kim, Dohyun Kim, Un Sun Chung, Jung Jae Lee

Psychiatry Investig. 2021;18(11):1068-1075.

Objective This study aimed to identify the central symptoms of late-life depression using network analysis and the item response theory. Methods A total of 3,472 older adults were enrolled and the...

Original Article

November 5, 2021

The Effect of Suicide Prevention Education on Attitudes Toward Suicide in Police Officers

Yujin Ko, HyunChul Youn, Soyoung Irene Lee, Jeewon Lee, Areum Lee, Shin-Gyeom Kim

Psychiatry Investig. 2021;18(11):1076-1081.

Objective This study investigated the effect of suicide prevention education on attitudes toward suicide among police officers. Methods We used an anonymous questionnaire for 518 officers and surveyed the demographic profiles...

Original Article

October 29, 2021

Insomnia Disorder Among Coronavirus Disease Survivors: A South Korean Nationwide Cohort Study

Hye Yoon Park, In-Ae Song, Tak Kyu Oh

Psychiatry Investig. 2021;18(11):1082-1090.

Objective We investigated the prevalence and associated factors of insomnia disorder among survivors of coronavirus disease of 2019 (COVID-19). Methods This population-based cohort study used data from the National Health Insurance...

Original Article

November 5, 2021

Gender Differences in the Link Between Marital Quality and Cognitive Decline Among Older Adults in Korea

Yujin Kim

Psychiatry Investig. 2021;18(11):1091-1099.

Objective This study aimed to investigate the association between positive marital quality and cognitive health over time and to examine gender differences in this association. Methods Drawing on 2006–2018 Korean Longitudinal...

Original Article

November 5, 2021

Effects of Indirect Experience of Client Violence on Social Workers’ Posttraumatic Stress Disorder

Yongwoo Lee, Sun Mi Kim, Doug Hyun Han, Seo-Koo Yoo, HyunSoo Kim

Psychiatry Investig. 2021;18(11):1100-1108.

Objective This study aims to empirically determine if indirect exposure to client violence has significant negative effects on social workers’ posttraumatic stress disorder (PTSD) the same way direct victimization does. Methods...

Original Article

October 29, 2021

Empathy and Theory of Mind in Ultra-High Risk for Psychosis: Relations With Schizotypy and Executive Function

Wanji Kong, Se Jun Koo, Eunchong Seo, Hye Yoon Park, Eun Lee, Suk Kyoon An

Psychiatry Investig. 2021;18(11):1109-1116.

Objective While recent studies have found deficits in theory of mind (ToM) skills in individuals at ultra-high risk (UHR) for psychosis, empathic tendencies in these subjects remain unclear. The presence...

Original Article

November 5, 2021

Childhood Emotional Abuse Is Associated With the Desire to Get Married and Have Children in Korean Young Adults

Jeewon Lee, Shin-Gyeom Kim, HyunChul Youn, Soyoung Irene Lee

Psychiatry Investig. 2021;18(11):1117-1124.

Objective Young adults putting off marriage and having less children have become recent trends in many modern societies. Yet less is known about the psychological factors underlying the drastically low...

Original Article

November 5, 2021

Association Between CLOCK Gene Variants and Restless Legs Syndrome in Koreans

Jae Eun Seo, Ji Won Yeom, Sehyun Jeon, Chul-Hyun Cho, Seunghwa Jeong, Heon-Jeong Lee

Psychiatry Investig. 2021;18(11):1125-1130.

Objective Previous studies have suggested various causes of restless legs syndrome (RLS), including iron and dopamine concentrations in the brain. Genetic influences have also been reported in many studies. There...

Original Article

October 29, 2021

Effect of Childhood Trauma on the Association Between Stress-Related Psychological Factors and Hair Cortisol Level in Young Adults

Won Jae Kim, Kyung Mee Park, Jung Tak Park, Eunchong Seo, Minji Bang, Suk Kyoon An, Hye Yoon Park, Eun Lee

Psychiatry Investig. 2021;18(11):1131-1136.

Objective Relationship between hair cortisol concentration (HCC) and stress-related psychological measures are inconclusive, possibly due to overlooked heterogeneity regarding childhood trauma and a lack of comprehensive research on stress-related psychological...

Original Article

November 5, 2021

Classification of Adolescent Psychiatric Patients at High Risk of Suicide Using the Personality Assessment Inventory by Machine Learning

Kyung-Won Kim, Jae Seok Lim, Chan-Mo Yang, Seung-Ho Jang, Sang-Yeol Lee

Psychiatry Investig. 2021;18(11):1137-1143.

Objective There are growing interests on suicide risk screening in clinical settings and classifying high-risk groups of suicide with suicidal ideation is crucial for a more effective suicide preventive intervention....

Smartphone Addiction Proneness Is Associated With Subjective-Objective Sleep Discrepancy in Patients With Insomnia Disorder Jeewon Lee, Han-Yong Jung, Soyoung Irene Lee, HyunChul Youn, Shin-Gyeom Kim Psychiatry Investig. 2021;18(11):1035-1043. Original Article November 5, 2021 Full text PubReader ePub PDF	Prevalence and Factors Associated With Elder Abuse in Community-Dwelling Elderly in Korea: Mediation Effects of Social Support Yu Jeong Lee, Yong Kim, Jong-Il Park Psychiatry Investig. 2021;18(11):1044-1049. Original Article September 10, 2021 Full text PubReader ePub PDF
The Impact of Maternal Adverse Childhood Experiences on Offspring’s Internalizing and Externalizing Problems Na Ri Kang, Young Sook Kwack, Jeong-Kook Song, Moon-Doo Kim, Joon Hyuk Park, Bung-Nyun Kim, Duk-Soo Moon Psychiatry Investig. 2021;18(11):1050-1057. Original Article October 29, 2021 Full text PubReader ePub PDF	A Call for a Rational Polypharmacy Policy: International Insights From Psychiatrists Yukako Nakagami, Kohei Hayakawa, Toru Horinouchi, Victor Pereira-Sanchez, Marcus P.J. Tan, Seon-Cheol Park, Yong Chon Park, Seok Woo Moon, Tae Young Choi, Ajit Avasthi, et al. Psychiatry Investig. 2021;18(11):1058-1067. Original Article November 5, 2021 Full text PubReader ePub PDF
Identification of Central Symptoms in Depression of Older Adults With the Geriatric Depression Scale Using Network Analysis and Item Response Theory Kyoung Min Kim, Dohyun Kim, Un Sun Chung, Jung Jae Lee Psychiatry Investig. 2021;18(11):1068-1075. Original Article October 29, 2021 Full text PubReader ePub PDF Supplementary Material	The Effect of Suicide Prevention Education on Attitudes Toward Suicide in Police Officers Yujin Ko, HyunChul Youn, Soyoung Irene Lee, Jeewon Lee, Areum Lee, Shin-Gyeom Kim Psychiatry Investig. 2021;18(11):1076-1081. Original Article November 5, 2021 Full text PubReader ePub PDF Supplementary Material
Insomnia Disorder Among Coronavirus Disease Survivors: A South Korean Nationwide Cohort Study Hye Yoon Park, In-Ae Song, Tak Kyu Oh Psychiatry Investig. 2021;18(11):1082-1090. Original Article October 29, 2021 Full text PubReader ePub PDF Supplementary Material	Gender Differences in the Link Between Marital Quality and Cognitive Decline Among Older Adults in Korea Yujin Kim Psychiatry Investig. 2021;18(11):1091-1099. Original Article November 5, 2021 Full text PubReader ePub PDF
Effects of Indirect Experience of Client Violence on Social Workers’ Posttraumatic Stress Disorder Yongwoo Lee, Sun Mi Kim, Doug Hyun Han, Seo-Koo Yoo, HyunSoo Kim Psychiatry Investig. 2021;18(11):1100-1108. Original Article November 5, 2021 Full text PubReader ePub PDF	Empathy and Theory of Mind in Ultra-High Risk for Psychosis: Relations With Schizotypy and Executive Function Wanji Kong, Se Jun Koo, Eunchong Seo, Hye Yoon Park, Eun Lee, Suk Kyoon An Psychiatry Investig. 2021;18(11):1109-1116. Original Article October 29, 2021 Full text PubReader ePub PDF
Childhood Emotional Abuse Is Associated With the Desire to Get Married and Have Children in Korean Young Adults Jeewon Lee, Shin-Gyeom Kim, HyunChul Youn, Soyoung Irene Lee Psychiatry Investig. 2021;18(11):1117-1124. Original Article November 5, 2021 Full text PubReader ePub PDF	Association Between CLOCK Gene Variants and Restless Legs Syndrome in Koreans Jae Eun Seo, Ji Won Yeom, Sehyun Jeon, Chul-Hyun Cho, Seunghwa Jeong, Heon-Jeong Lee Psychiatry Investig. 2021;18(11):1125-1130. Original Article November 5, 2021 Full text PubReader ePub PDF
Effect of Childhood Trauma on the Association Between Stress-Related Psychological Factors and Hair Cortisol Level in Young Adults Won Jae Kim, Kyung Mee Park, Jung Tak Park, Eunchong Seo, Minji Bang, Suk Kyoon An, Hye Yoon Park, Eun Lee Psychiatry Investig. 2021;18(11):1131-1136. Original Article October 29, 2021 Full text PubReader ePub PDF	Classification of Adolescent Psychiatric Patients at High Risk of Suicide Using the Personality Assessment Inventory by Machine Learning Kyung-Won Kim, Jae Seok Lim, Chan-Mo Yang, Seung-Ho Jang, Sang-Yeol Lee Psychiatry Investig. 2021;18(11):1137-1143. Original Article November 5, 2021 Full text PubReader ePub PDF
Effects of BDNF Val66Met Polymorphism on White Matter Microalterations of the Corpus Callosum in Patients with Panic Disorder in Korean Populations Hyun-Ju Kim, Minji Bang, Kang Soo Lee, Tai Kiu Choi, Chun Il Park, Sang-Hyuk Lee Psychiatry Investig. 2021;18(11):1144-1144. Erratum November 11, 2021 Full text PubReader ePub PDF