Department of Psychology, Hunter College, City University of New York, NY, USA; Department of Psychology, The Graduate Center, City University of New York, NY, USA.
Psychiatry Res. 2013 Nov 30;210(1):174-81. doi: 10.1016/j.psychres.2013.02.033. Epub 2013 Mar 23.
Previous research suggests that cognitive inflexibility prospectively increases vulnerability to suicidal ideation, but the specific cognitive factors that may explain the relation have not been examined empirically. The present study examined the brooding subtype of rumination and hopelessness as potential mediators of the prospective relation between cognitive inflexibility and suicidal ideation. Fifty-six young adults who completed a measure of cognitive inflexibility and suicidal ideation at baseline were followed up 2-3 years later and completed measures of brooding, hopelessness, and suicidal ideation. Cognitive inflexibility at baseline predicted suicidal ideation at follow up, adjusting for baseline ideation. This relation was mediated by brooding but not by hopelessness. However, there was an indirect relation between perseverative errors and suicidal ideation through brooding, followed by hopelessness, such that brooding was associated with greater hopelessness and hopelessness, in turn, was associated with greater suicidal ideation. Cognitive inflexibility may increase vulnerability to suicidal thinking because it is associated with greater brooding rumination, while brooding, in turn, is associated with hopelessness.
先前的研究表明，认知灵活性前瞻性地增加了自杀意念的易感性，但尚未通过实证研究来检验可能解释这种关系的具体认知因素。本研究探讨了沉思的沉思亚型和绝望作为认知灵活性与自杀意念之间前瞻性关系的潜在中介。56 名年轻人在基线时完成了认知灵活性和自杀意念的测量，然后在 2-3 年后进行了随访，并完成了沉思、绝望和自杀意念的测量。在调整了基线意念的情况下，基线时的认知不灵活性预测了随访时的自杀意念。这种关系是由沉思介导的，而不是由绝望介导的。然而，在通过沉思和绝望之后，坚持错误与自杀意念之间存在间接关系，即沉思与更大的绝望相关，而绝望又与更大的自杀意念相关。认知灵活性可能会增加自杀思维的易感性，因为它与更多的沉思性反刍有关，而沉思性反刍又与绝望有关。
