Psychiatry Investigation

Original Article

September 1, 2026

Mapping the Symptom Networks of Depression, Anxiety, and Their Comorbidity Among Chinese Individuals Under Community Correction

Yichao Lv, Ruyong Li, Zhe Hou, Xinze Liu, Xinyuan Zou, Minmin Cai, Xiangping Liu, Shanshan Chen, Yanqiang Tao

Psychiatry Investig. 2026;23(9):1081-1095.

Objective Individuals under community correction are a high-risk population for anxiety and depression, which frequently co-occur. However, the symptom network structures of anxiety, depression, and their comorbidity in this population...

Original Article

September 1, 2026

Daily Language as an Objective Indicator of Depressive Affective States: A Two-Week Ecological Momentary Assessment Study in Emotional Labor Workers

Hye Hyeon Kim, Seok Jun Kim, Dae-Kwang Kim, Eun-Kyoung Jeon, Yoonjoo Choi, Jae-Min Kim, Sung-Wan Kim, Suehyun Lee, Min Jhon, Ju-Wan Kim

Psychiatry Investig. 2026;23(9):1096-1106.

Objective Workers performing emotional labor are at increased risk for depression, yet conventional self-report assessments often lack objectivity and temporal sensitivity. This study aimed to examine whether longitudinal analysis of...

Original Article

September 1, 2026

Delayed Diagnosis of Narcolepsy: Family History and Clinical Features as Predictive Factors

Eun Hye Lee, Tae-Won Kim, Young-Chan Kim, Su-Hyung Kim, Yoo Hyun Um, Ho Jun Seo, Jong-Hyun Jeong, Seung Chul Hong

Psychiatry Investig. 2026;23(9):1107-1113.

Objective Narcolepsy often begins in adolescence, yet diagnosis is frequently delayed. This study aimed to identify factors associated with delayed diagnosis of narcolepsy, defined as more than 1 year between...

Original Article

September 1, 2026

Latent Trajectories of Screen Time and Their Predictors in School-Aged Children: A Six-Year Longitudinal Analysis

Sunmi Cho, Saebom Jeon, Sang-ha Lee, Ji-hye Song, Yunmi Shin

Psychiatry Investig. 2026;23(9):1114-1122.

Objective Children’s screen time has increased rapidly with the rise of digital technology and was further accelerated by the COVID-19 pandemic, heightening concerns about developmental impacts. This study investigates six-year...

Original Article

September 1, 2026

Self-Control Buffers the Association Between Aggression and Problematic Internet Gaming in Adolescents

Yeon Jung Lee, Jung Ho Kim

Psychiatry Investig. 2026;23(9):1123-1130.

Objective Problematic internet gaming is an increasing mental health concern in adolescence; however, not all individuals exposed to known risk factors develop maladaptive gaming behaviors. Although aggression and self-control have...

Original Article

August 27, 2026

Bridging Genes and Behavior in Autism Spectrum Disorder: Contributions of OXTR Gene Variants and Methylation to Brain Connectivity Patterns

Narae Yoon, Sohui Kim, Mee Rim Oh, Johanna Inhyang Kim, Jong-Min Lee, Bung-Nyun Kim

Psychiatry Investig. 2026;23(9):1131-1142.

Objective To investigate how genetic variants and epigenetic modification of the oxytocin receptor gene (OXTR) relate to resting-state functional connectivity (FC) alterations and core symptom severity in children with autism...

Original Article

August 13, 2026

Grit as a Protective Predictor of Suicidality Among Patients With Breast Cancer

C. Hyung Keun Park, Ji Seon You, Harin Kim, Yangsik Kim

Psychiatry Investig. 2026;23(9):1143-1153.

Objective Evidence continues to accumulate indicating that grit could be a protective factor against suicidality. This study examined, over 6 months, whether each aspect of grit—consistency of interests and perseverance...

Original Article

August 13, 2026

Validation of the Korean Version of the Center for Epidemiologic Studies Depression Scale for Children

Juhye Kweon, Jin Young Park, Jungwon Choi, Yul-Mai Song, Eunmi Roh, Kyungun Jhung

Psychiatry Investig. 2026;23(9):1154-1162.

Objective Depression in children and adolescents is a global concern associated with adverse psychological and developmental outcomes. The Center for Epidemiologic Studies Depression Scale for Children (CES-DC) measures depressive symptoms...

Original Article

August 27, 2026

The Thought Induction Psychotherapy Technique’s Clinical Effectiveness in Treating Adolescent Depression and Anxiety: A Randomized Controlled Trial

Yaqi Feng, Rong Zhang, Lingyun Fan, Jing Tang, Jingxia Zhang

Psychiatry Investig. 2026;23(9):1163-1171.

Objective We evaluated the clinical effectiveness of low resistance state thought induction psychotherapy (TIP) in treating adolescent depression and anxiety. Methods This study was registered in the Chinese Clinical Trial Registry...

Original Article

September 1, 2026

Social Media Addiction in Adolescents and the Effect of Emotional Intelligence on Ghosting

Ramazan İnci, Sevgi Köroğlu Gökbel, Hatice Kiliçkiran Doğan, Nursel Gül, Kübra Yesin, Metin Yıldız

Psychiatry Investig. 2026;23(9):1172-1182.

Objective This study was conducted to examine the effect of social media addiction and emotional intelligence on ghosting among adolescents. Methods This descriptive cross-sectional study was conducted between June and...

Original Article

September 1, 2026

Combined Associations of Diabetes and Depressive Symptoms on Cognitive Impairment Risk in the Population Aged 60 or Older: Cross-Cohort Comparisons From NHANES and CHARLS

Siheng Ma, Qilong Wang, Dongrong Zhao, Huaning Wang, Min Cai

Psychiatry Investig. 2026;23(9):1183-1195.

Objective Diabetes mellitus (DM) and cognitive impairment (CoI) are correlated, but the combined impact of depressive symptoms on CoI risk in older adults remains unclear. Methods This study included 1,200...

Original Article

September 1, 2026

Disruptive, Impulse-Control, & Conduct Disorders in South Korean Children & Adolescents

JungYun Go, Jung Hyun Lee, MinKyung Jo, Subin Park

Psychiatry Investig. 2026;23(9):1196-1207.

Objective Though disruptive, impulse-control, and conduct disorders (DICCD) represent significant public health challenges in Korea, diagnosis-specific epidemiological data remain limited. This study investigated DICCD’s prevalence, risk factors, and psychiatric comorbidities...

Original Article

September 1, 2026

Multimorbidity Clusters and Depressive Symptom Networks in Old Age: Evidence From China

Xin Guan, Li-gang Wang, Zhen-jing Liu, Yan-kai Zhang, Xin-mei Hao, Xin-yue Wang, Lei Zhang, Ping Sun

Psychiatry Investig. 2026;23(9):1208-1217.

Objective To identify patterns of chronic disease multimorbidity in older Chinese adults, examine variables associated with the link between multimorbidity and depression, and characterize depressive symptom network features. Methods We...