Abstract：
BACKGROUND: 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.
METHODS: 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).
RESULTS: 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.
CONCLUSIONS: Results suggest that emotional reactivity may be a key dispositional factor that influences how trauma exposure and self-injurious behavior impact fearlessness about death.
METHODS: 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).
RESULTS: 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.
CONCLUSIONS: Results suggest that emotional reactivity may be a key dispositional factor that influences how trauma exposure and self-injurious behavior impact fearlessness about death.
摘要：
背景：由于自杀仍然是全球公共卫生问题，最近的工作试图描述从自杀意念过渡到行动的潜在机制。获得自杀能力，或者对死亡无所畏惧，已被确定为这种转变的一个关键因素；然而，了解这种能力是如何出现的仍然有限。这项研究试图通过检查死亡与痛苦和挑衅性事件以及情绪反应的关系，来扩展先前关于死亡无畏相关的工作。
方法：我们在273名社区成年人（年龄18-55岁，M/SD=32.77/10.78）的不同样本中，测试了特质情绪反应和过去的自我伤害行为在多大程度上调节了攻击性创伤暴露与无畏死亡之间的关系。
结果：出现了三方互动，在情绪反应性增强且有自伤行为史（自杀未遂或非自杀性自伤）的个体中，攻击性创伤与对死亡的恐惧增加有关。相比之下,在情绪反应性低，有自我伤害行为史的成年人中，攻击性创伤与减少对死亡的恐惧有关。
结论：结果表明，情绪反应可能是影响创伤暴露和自我伤害行为如何影响死亡无畏的一个关键因素。
方法：我们在273名社区成年人（年龄18-55岁，M/SD=32.77/10.78）的不同样本中，测试了特质情绪反应和过去的自我伤害行为在多大程度上调节了攻击性创伤暴露与无畏死亡之间的关系。
结果：出现了三方互动，在情绪反应性增强且有自伤行为史（自杀未遂或非自杀性自伤）的个体中，攻击性创伤与对死亡的恐惧增加有关。相比之下,在情绪反应性低，有自我伤害行为史的成年人中，攻击性创伤与减少对死亡的恐惧有关。
结论：结果表明，情绪反应可能是影响创伤暴露和自我伤害行为如何影响死亡无畏的一个关键因素。
