Stumps Anna D, Bounoua Nadia, Sheehan Ana E, Sadeh Naomi
Department of Psychological and Brain Sciences, University of Delaware, Newark, Delaware, USA.
Department of Psychology, University of Maryland, College Park, Maryland, USA.
Suicide Life Threat Behav. 2024 Dec;54(6):1072-1082. doi: 10.1111/sltb.13112. Epub 2024 Jul 11.
As suicide remains a global public health concern, recent work has sought to characterize mechanisms underlying the transition from suicidal ideation to action. Acquired capability for suicide, or fearlessness about death, has been identified as one key factor underlying this transition; however, understanding how this capability emerges remains limited. This study sought to extend previous work on the correlates of fearlessness about death by examining its relationship with painful and provocative events and emotional reactivity.
We tested the extent to which trait emotional reactivity and past self-injurious behavior moderated the relationship between assaultive trauma exposure and fearlessness about death in a diverse sample of 273 community adults (aged 18-55, M/SD = 32.77/10.78).
A three-way interaction emerged, such that among individuals with heightened emotional reactivity and a history of self-injurious behavior (suicide attempt or non-suicidal self-injury), assaultive trauma was associated with increased fearlessness about death. In contrast, among adults with low emotional reactivity and a history of self-injurious behavior, assaultive trauma was associated with reduced fearlessness about death.
Results suggest that emotional reactivity may be a key dispositional factor that influences how trauma exposure and self-injurious behavior impact fearlessness about death.
由于自杀仍是一个全球公共卫生问题，近期的研究试图描述从自杀意念转变为自杀行为背后的机制。获得性自杀能力或对死亡的无畏被确定为这一转变背后的一个关键因素；然而，对于这种能力是如何出现的理解仍然有限。本研究旨在通过检验无畏死亡与痛苦和挑衅性事件以及情绪反应性之间的关系，扩展先前关于无畏死亡相关因素的研究。
我们在273名社区成年人（年龄18 - 55岁，M/SD = 32.77/10.78）的多样化样本中，测试了特质情绪反应性和过去的自我伤害行为在攻击性创伤暴露与无畏死亡之间的关系中所起的调节作用。
出现了一个三向交互作用，即对于情绪反应性增强且有自我伤害行为史（自杀未遂或非自杀性自我伤害）的个体，攻击性创伤与无畏死亡增加相关。相比之下，在情绪反应性低且有自我伤害行为史的成年人中，攻击性创伤与无畏死亡减少相关。
结果表明，情绪反应性可能是一个关键的性格因素，它影响着创伤暴露和自我伤害行为如何影响对死亡的无畏。
