Cited by 46Suicide and Self-Harm StudiesTryptophan and brain disordersNeural and Behavioral Psychology Studies

Exploratory Analysis of Behavioral Impulsivity, Pro-inflammatory Cytokines, and Resting-State Frontal EEG Activity Associated With Non-suicidal Self-Injury in Patients With Mood Disorder

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Kim, Ji Sun, Kang, Eun-Sook, Bahk, Yong Chun, Jang, Sunglee, Hong, Kyung Sue, Baek, Ji Hyun·2020·Frontiers in Psychiatry

Abstract

Introduction: Non-suicidal self-injury (NSSI) is a rapidly increasing mental health problem that requires more clinical attention. In this study, we aimed to explore the biobehavioral markers of NSSI in participants with mood disorders. Methods: A total of 45 participants with mood disorders (bipolar I, II, and major depressive disorder) were included in the study. Behavioral impulsivity was measured using the immediate memory task (IMT)/ delayed memory task (DMT) and the go-no-go (GNG) tests. Plasma levels of tumor necrosis factor- (TNF-), interleukin 1 beta (IL-1), and interleukin 6 (IL-6) and resting-state quantitative electroencephalography (qEEG) were measured. Results: The NSSI group had shorter GNG reaction time (GNG-RT) and higher TNF- levels compared to the non-NSSI group. TNF- was positively correlated with frontal theta power. In addition, GNG-RT showed a significant positive association with frontal alpha activity. Conclusion: NSSI in mood disorders was associated with increased behavioral impulsivity and greater inflammation. Increased pro-inflammatory cytokines were associated with frontal theta power and increased theta-beta ratio. Increased inflammation might change major neurotransmitter metabolism, which eventually affects frontal function and decreases response inhibition. Further studies to explore their causal relationship are warranted.

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Authors
Kim, J. S., Kang, E.-S., Bahk, Y. C., Jang, S., Hong, K. S., & Baek, J. H.
Affiliations
  • Soonchunhyang University Hospital Cheonan (KR)
  • Samsung Medical Center (KR)
  • Samsung (South Korea) (KR)
Corresponding author
Baek, Ji Hyun
Venue
Frontiers in Psychiatry
Published
2020-02-26
Volume
11
Pages
124-124
ISSN
1664-0640 (ISSN-L)
OpenAlex
W3008013491
Cited by
46
References
57
Citations by year
2026: 7 · 2025: 12 · 2024: 7 · 2023: 5 · 2022: 5 · 2021: 8 · 2020: 2
FWCI
2.00
Type
journal article
Language
en
Open access
Locations
  • Frontiers in Psychiatry (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Soonchunhyang University
  • National Research Foundation
Topics
  • Social Sciences › Psychology › Clinical Psychology › Suicide and Self-Harm Studies
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
Keywords
non-suicidal self-injury, mood disorders, bipolar disorder, major depressive disorder, behavioral impulsivity, inflammatory cytokines, TNF-α, interleukin-6, IL-1β, resting-state EEG, frontal theta power, response inhibition

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