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Sung‐Ha Lee

Yonsei University · Psychology

About the Lab

Professor Sung-Ha Lee's research lab focuses on the interdisciplinary investigation of biological, psychological, and social factors influencing mental health, well-being, and behavioral decision-making. Key research directions include the neurocognitive mechanisms underlying substance use disorders, the gut-brain axis in emotional regulation, genetic influences on addiction and mental health, and the social determinants of life satisfaction and loneliness in aging populations. The lab integrates computational modeling, molecular genetics, microbiome analysis, and large-scale survey data to uncover mechanisms linking biology, behavior, and well-being across the lifespan.

gut-brain axissubstance use disordersgenetic riskwell-beingloneliness in aging

Research Overview

Papers
51
Total Citations
592
Papers (5y)
31
Primary Field
Psychology

Research Output Trend

Figures are computed from collected data and may differ slightly.

Publications per year (5y)
31total
2022
2023
2024
2025
2026
Citations per year (5y)
93total
20222023202420252026

Selected Papers

15
1
Article|189 citations·2014
Decision-making in stimulant and opiate addicts in protracted abstinence: evidence from computational modeling with pure users
Woo‐Young Ahn, Georgi Vasilev, Sung‐Ha Lee, Jerome R. Busemeyer, John K. Kruschke, Antoine Bechara, Jasmin Vassileva
SJR Q2Frontiers in PsychologyOA

Substance dependent individuals (SDI) often exhibit decision-making deficits; however, it remains unclear whether the nature of the underlying decision-making processes is the same in users of different classes of drugs and whether these deficits persist after discontinuation of drug use. We used computational modeling to address these questions in a unique sample of relatively "pure" amphetamine-dependent (N = 38) and heroin-dependent individuals (N = 43) who were currently in protracted abstin

Cognitive NeuroscienceNeuroscience
2
Article|75 citations·2020
Emotional well-being and gut microbiome profiles by enterotype
Sung‐Ha Lee, Seok-Hwan Yoon, Yeonjae Jung, Namil Kim, Ui-Gi Min, Jongsik Chun, Incheol Choi
SJR Q1Scientific ReportsOA

With increasing attention being paid to improving emotional well-being, recent evidence points to gut microbiota as a key player in regulating mental and physical health via bidirectional communication between the brain and gut. Here, we examine the association between emotional well-being and gut microbiome profiles (i.e., gut microbiome composition, diversity, and the moderating role of the enterotypes) among healthy Korean adults (n = 83, mean age = 48.9, SD = 13.2). The research was performe

Molecular BiologyBiochemistry, Genetics and Molecular Biology
3
Article|32 citations·2020
Psychological well-being and gene expression in Korean adults: The role of age
Sung‐Ha Lee, Incheol Choi, Eun-Soo Choi, Minha Lee, Yuri Kwon, Bumjo Oh, Steve W. Cole
SJR Q1Psychoneuroendocrinology
Social PsychologyPsychology
4
Article|28 citations·2018
Combined genetic influence of the nicotinic receptor gene cluster CHRNA5/A3/B4 on nicotine dependence
Sung‐Ha Lee, Woo‐Young Ahn, Michał Seweryn, Wolfgang Sadée
SJR Q1BMC GenomicsOA

These results indicate rs4887074 is associated with CHRNB4 expression, and along with two regulatory variants of CHRNA3 and CHRNA5, modulates the effect of rs16969968 on nicotine dependence risk. Assignable to individuals because of strong LD structures, 4-SNP haplotypes and diplotypes serve to assess the combined genetic influence of this multi-gene cluster on complex traits, accounting for complex LD relationships and tissue-specific genetic effects (CHRNA5/3) relevant to the traits analyzed.

Molecular BiologyBiochemistry, Genetics and Molecular Biology
5
Article|20 citations·2020
Life Satisfaction in Later Life: The Interplay of Marital Condition and Income among Elderly Koreans
Sung‐Ha Lee, Jiyoun Lee, Incheol Choi
SJR Q1SustainabilityOA

Although both marital status and economic conditions significantly contribute to life satisfaction in later life, the effect of their interaction (or moderating) on life satisfaction has been understudied. Our goal was to examine whether marriage buffers the negative consequences of low income among elderly people. Using two large national survey datasets, the Korean Community Health Survey (n = 126,936) and the Korean Longitudinal Study of Aging (KLoSA) (n = 5687), we examined the relationship

HealthSocial Sciences
6
Article|15 citations·2019
Estimating quality of life with biomarkers among older Korean adults: A machine-learning approach
Sung‐Ha Lee, Incheol Choi, Woo‐Young Ahn, Enyoung Shin, Sung‐Il Cho, Sun Young Kim, Bumjo Oh
SJR Q1Archives of Gerontology and Geriatrics
PhysiologyMedicine
7
Article|10 citations·2021
Loneliness and immune gene expression in Korean adults: The moderating effect of social orientation.
Sung‐Ha Lee, Steve W. Cole, Jiyoung Park, Incheol Choi
SJR Q1Health Psychology

The current finding highlights the role that individual variation in social orientation plays in modulating the risk of loneliness on adverse health outcomes. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

HealthSocial Sciences
8
Article|6 citations·2023
Social network position and the Conserved Transcriptional Response to Adversity in older Koreans
Sung‐Ha Lee, Steve W. Cole, Incheol Choi, Kiho Sung, Somin Kim, Yoosik Youm, Jeanyung Chey
SJR Q1Psychoneuroendocrinology
HealthSocial Sciences
9
Article|5 citations·2024
Unraveling the Most Important Predictors of Eudaimonic and Hedonic Well-Being in Korean Adults: A Machine Learning Approach
Mina Jyung, Sung‐Ha Lee, Incheol Choi
SJR Q1Journal of Happiness StudiesOA

Abstract The quest to unravel what contributes to happiness continues to captivate interest in both everyday experiences and academic discourse. Nonetheless, empirical research on the relative importance of possible candidates and their associations with two key aspects of well-being—eudaimonia (the good life) and hedonia (pleasure)—is limited. This study addresses this gap by exploring the relative strength of 32 predictors from multiple domains on psychological well-being (PWB) and subjective

Social PsychologyPsychology
10
Article|5 citations·2022
Psychological well‐being and salivary markers of inflammation: The moderating effect of age
Sung‐Ha Lee, Jeanyung Chey, Woo‐Young Ahn, Choong‐Wan Woo, Yoosik Youm, Hairin Kim, Naeun Oh, Hye-Young Park, Suhwan Gim, Eunjin Lee, Incheol Choi
SJR Q1Applied Psychology Health and Well-Being

Abstract Increasing evidence suggests a significant impact of higher psychological well‐being (PWB) on health outcomes; however, such associations have been studied exclusively in middle‐aged to older adults. This study examined the aging effect on PWB measures as well as the moderating effect of age on the link between PWB and inflammation, using salivary markers by comparing the younger adults ( n = 127; M age = 22.98 years) versus older adults ( n = 75; M age = 75.60 years). Older adults show

Behavioral NeuroscienceNeuroscience
11
Article|4 citations·2021
Social connectedness and hair cortisol in community-dwelling older adults
Sung‐Ha Lee, Ekaterina Baldina, Eun Lee, Yoosik Youm
SJR Q2Comprehensive PsychoneuroendocrinologyOA

The current findings underscore the role of emotional support on reducing cumulative cortisol, thus providing potential resilience mechanisms for the psychobiological stress response.

Behavioral NeuroscienceNeuroscience
12
Article|3 citations·2024
Longitudinal associations between gut microbiome diversity and emotional well-being.
Sung‐Ha Lee, Xyle Ku, Hyun-Seok Oh, Yeonjae Jung, Jongsik Chun, Incheol Choi
SJR Q1Health Psychology

Our findings indicate that emotional happiness may be associated with gut microbiome profiles at a particular time point, but they may not serve as predictive factors for each other over time. Future research is needed to establish causal relationships between them. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Molecular BiologyBiochemistry, Genetics and Molecular Biology
13
Book Chapter|2 citations·2019
Nicotine Dependence and the CHRNA5/CHRNA3/CHRNB4 Nicotinic Receptor Regulome
Sung‐Ha Lee, Elizabeth S. Barrie, Wolfgang Sadée, Ryan M. Smith
Elsevier eBooks
Molecular BiologyBiochemistry, Genetics and Molecular Biology
14
Article|1 citations·2023
Association of group-level segregation with cardiovascular health in older adults: an analysis of data from the Korean Social Life, Health, and Aging Project
Sung‐Ha Lee, Hyeok‐Hee Lee, Kiho Sung, Yoosik Youm, Hyeon Chang Kim
SJR Q2Epidemiology and HealthOA

OBJECTIVES: The adverse health effects of individual-level social isolation (e.g., perceived loneliness) have been well documented in older adults. However, little is known about the impact of collective-level social isolation on health outcomes. We sought to examine the association of group-level segregation with cardiovascular health (CVH) in older adults. METHODS: From the prospective Korean Social Life, Health, and Aging Project database, we identified 528 community-dwelling older adults who

HealthSocial Sciences
15
Article|1 citations·2008
A case of inguinal lymph node squamous cell carcinoma of unknown origin, accompanied with carcinoma in situ of cervix
Sung‐Ha Lee, Minjung Kim, Hee-Jung Lee, Sa-Jin Kim, Jong Sup Park, Soo Young Hur
SJR Q1Journal of Gynecologic OncologyOA

Metastatic Cancer of Unknown Primary Site (CUP) accounts for approximately 3-5% of all malignant neoplasms. CUP represents a heterogeneous group of metastatic tumors for which no primary site can be detected following a thorough medical history, careful clinical examination, and extensive diagnostic work-up. Several authors have reported poor prognosis of this malignancy, because there is no consensus on diagnostic guidelines and optimal therapy. Historically, chemotherapy has been the cornersto

OncologyMedicine

Research Areas

HealthExperimental and Cognitive PsychologyMolecular BiologySocial PsychologyPhysiologyGeneral Health Professions

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