ISSN 1671-3710
CN 11-4766/R

心理科学进展 ›› 2023, Vol. 31 ›› Issue (1): 87-98.doi: 10.3724/SP.J.1042.2023.00087

• 研究前沿 • 上一篇    下一篇


肖婷炜1, 董洁1, 梁飞1, 王福顺1(), 李洋2   

  1. 1四川师范大学脑与心理科学研究院, 成都 610066
    2南京市森林警察学院心理学系, 南京 210023
  • 收稿日期:2021-10-12 出版日期:2023-01-15 发布日期:2022-10-13
  • 通讯作者: 王福顺
  • 基金资助:

The relationship between disgust and suicidal behavior

XIAO Tingwei1, DONG Jie1, LIANG Fei1, WANG Fushun1(), LI Yang2   

  1. 1Institute of Brain and Psychological Science, Sichuan Normal University, Chengdu 610066, China
    2Department of Psychology, Nanjing Forest Police College, Nanjing 210023, China
  • Received:2021-10-12 Online:2023-01-15 Published:2022-10-13
  • Contact: WANG Fushun


自杀导致人类死亡的人数与日俱增, 然而自杀的心理机制却并不清楚。最近研究发现, 厌恶情绪是导致自杀的主要情绪因素, 个体因为自身厌恶而走向自杀。厌恶情绪是一种对自己和他人排泄物等反感的基本情绪, 促进个体远离毒性和疾病, 从而产生“免疫行为”。许多心理问题来自于对周围人或事物的厌恶, 有自杀行为的个体对自身极其厌恶, 说明他们的厌恶情绪出现了问题。如同躯体免疫攻击自身一样, 自身厌恶是自杀意念的关键因素, 早年创伤是其根源, 生活压力和精神疾病也参与厌恶诱发自杀意念。厌恶诱发自杀意念的神经基础与HPA轴和五羟色胺系统有关。未来研究可利用神经影像和电生理等神经科学技术, 检验自杀行为的神经机制, 探讨厌恶情绪影响自杀行为的心理和神经机制。

关键词: 厌恶情绪, 死亡本能, 基本情绪, 抑郁, 自杀行为


Suicide is the primary cause of adolescent death, and suicide seriously endangers the life security and mental health of human being. Suicidal behavior includes suicidal ideation, suicidal attempt and suicide. Suicidal ideation refers to serious suicidal thoughts of preparing for a fatal, self-directed, and potentially injurious behavior, or refers to the intension to die without specific plans. Suicidal attempt refers to the intension to commit suicide, including the plans for suicide and even committed suicide; they might attempt to attract attention through bodily harm, but not necessarily causing actual harm. However, suicide is self-directed harm or death. According to suicidal theories which were based on the ideation-to-action framework, self-disgust is a key factor for the formation of suicidal ideation. This article reviews theoretical basis, correlation factor and neurophysiological mechanism of disgust induced suicidal behavior, and predicts future research direction.

Many recent studies suggested that many psychological problems, including suicide, are caused by patients' disgust to the surroundings and the environment. Disgust is a basic emotion, which is a response to disgustful things, and it is a defensive mechanism to keep people away from spoiled foods or from pollutants to prevent potential diseases, viruses and pollution. However, under heavy burdens and pressures, people would feel depressed and self-disgust, and ultimately lead to despair (extreme self-disgust), resulting in suicidal ideation. Under the condition of having suicidal ability, suicidal ideation would turn to be suicidal attempts, and thus suicide.

It is also suggested that early life trauma might be the root for disgust inducing suicidal ideation. And life stress and mental illness might aggravate the induction of disgust to suicide. High-intensity self-disgust has been proved to be the most relevant predictor of suicidal risks in mental illness. Psychoanalysis shows that when people are disgusted by themselves, the aggression behavior induced by disgust would also be directed to themselves, so self-disgust might induce suicide.

The neural mechanism of self-disgust inducing suicide may be related to monoamine (including serotonin) and oxytocin. Hypothalamic-pituitary-adrenal (HPA) axis are related to the stress response system that plays a very important role in disgust-induced suicidal ideation. Besides, self-disgust may be affected by traumatic stresses in early life, current psychological problems and mental diseases, which might lead to the mal-development of 5-hydroxytryptamine (5-HT) system, that determines the pattern of stress response in adulthood, including suicide.

However, there are still some limitations in current suicide studies. First of all, most studies are still limited to cross-sectional design and cannot compare time factors. Therefore, future studies should adopt vertical design and prospective research. Secondly, since most studies are limited to questionnaire studies, future studies could apply neuroscience technologies, such as neuroimaging and electrophysiology, in investigating the neural mechanisms of suicidal behavior, as well as the psychological and neural mechanisms of suicidal behavior affected by disgust.

Key words: disgust, death instinct, basic emotions, depression, suicidal behavior