Abstract：
OBJECTIVE: To test the hypothesis that exposure to peer self-harm induces adolescents\' urges to self-harm and that this is influenced by individual suggestibility.
METHODS: We recruited 97 UK-based adults aged 18-25 years with a recent history of self-harm, measuring baseline suggestibility (Resistance to Peer Influence; RPI) and perceived ability to control urges to self-harm (using an adapted item from the Self-Efficacy to Resist Suicidal Action scale; SEASA) before and after two self-harm vignettes featuring named peers from the participant\'s social network (to simulate exposure to peer non-suicidal self-harm) and after a wash-out exposure. We used paired t-tests to compare mean SEASA scores pre- and post-exposure, and linear regression to test for an association between RPI and change in SEASA scores pre- and post-exposure.
RESULTS: Perceived ability to control urges to self-harm was significantly reduced following exposure to peer self-harm (t(96) = 4.02, p < 0.001, mean difference = 0.61; 95% CI = 0.31, 0.91), but was not significantly different from baseline after exposure to a wash-out. We found no association between suggestibility and change in urges to self-harm after exposure to peer self-harm.
CONCLUSIONS: Our findings support social influences on self-harm in a sample of young adults, regardless of their individual degree of suggestibility.
METHODS: We recruited 97 UK-based adults aged 18-25 years with a recent history of self-harm, measuring baseline suggestibility (Resistance to Peer Influence; RPI) and perceived ability to control urges to self-harm (using an adapted item from the Self-Efficacy to Resist Suicidal Action scale; SEASA) before and after two self-harm vignettes featuring named peers from the participant\'s social network (to simulate exposure to peer non-suicidal self-harm) and after a wash-out exposure. We used paired t-tests to compare mean SEASA scores pre- and post-exposure, and linear regression to test for an association between RPI and change in SEASA scores pre- and post-exposure.
RESULTS: Perceived ability to control urges to self-harm was significantly reduced following exposure to peer self-harm (t(96) = 4.02, p < 0.001, mean difference = 0.61; 95% CI = 0.31, 0.91), but was not significantly different from baseline after exposure to a wash-out. We found no association between suggestibility and change in urges to self-harm after exposure to peer self-harm.
CONCLUSIONS: Our findings support social influences on self-harm in a sample of young adults, regardless of their individual degree of suggestibility.
摘要：
目的：检验以下假设：暴露于同伴自我伤害会引起青少年自我伤害的冲动，这受到个人暗示的影响。
方法：我们招募了97名年龄在18-25岁之间、最近有自残史的英国成年人，测量基线暗示能力(对同伴影响的抵抗力，RPI）和感知的控制能力，促使自我伤害（使用自我效能抵抗自杀行动量表中的改编项目；SEASA）在两次自我伤害小插曲之前和之后，以参与者的社交网络中的指定同伴为特征（模拟暴露于同伴非自杀自我伤害），以及洗出暴露后。我们使用配对t检验来比较暴露前和暴露后的平均SEASA分数，和线性回归来检验RPI与暴露前后SEASA评分变化之间的关联。
结果：暴露于同伴自我伤害后，控制自我伤害冲动的感知能力显着降低（t（96）=4.02，p<0.001，平均差=0.61；95％CI=0.31，0.91），但暴露于冲洗后与基线无显著差异.我们发现在暴露于同伴自我伤害后，暗示与自我伤害冲动的变化之间没有关联。
结论：我们的研究结果支持对年轻人样本中自我伤害的社会影响，不管他们个人的暗示程度如何。
方法：我们招募了97名年龄在18-25岁之间、最近有自残史的英国成年人，测量基线暗示能力(对同伴影响的抵抗力，RPI）和感知的控制能力，促使自我伤害（使用自我效能抵抗自杀行动量表中的改编项目；SEASA）在两次自我伤害小插曲之前和之后，以参与者的社交网络中的指定同伴为特征（模拟暴露于同伴非自杀自我伤害），以及洗出暴露后。我们使用配对t检验来比较暴露前和暴露后的平均SEASA分数，和线性回归来检验RPI与暴露前后SEASA评分变化之间的关联。
结果：暴露于同伴自我伤害后，控制自我伤害冲动的感知能力显着降低（t（96）=4.02，p<0.001，平均差=0.61；95％CI=0.31，0.91），但暴露于冲洗后与基线无显著差异.我们发现在暴露于同伴自我伤害后，暗示与自我伤害冲动的变化之间没有关联。
结论：我们的研究结果支持对年轻人样本中自我伤害的社会影响，不管他们个人的暗示程度如何。
