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首页> 外文学位 >The Relationship between Suicide Ideation and Parasuicide: An Electrophysiological Investigation using the Loudness Dependence of Auditory Evoked Potential.
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The Relationship between Suicide Ideation and Parasuicide: An Electrophysiological Investigation using the Loudness Dependence of Auditory Evoked Potential.

机译：自杀念头和副自杀之间的关系：使用听觉诱发电位的响度依赖性的电生理调查。

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摘要

The loudness dependence of the auditory evoked potential (LDAEP) has been proposed as a promising valid and a non-invasive indicator of behaviorally relevant central 5-HT functioning. There is limited research on the utility of the LDAEP in discriminating individuals who engage in various degrees of suicidal behavior. The primary purpose of the present study was to examine if the LDAEP, as a measure of central serotonergic functioning, can be useful in distinguishing groups of individuals who: (a) solely experience suicidal ideation (SI group); (b) experience suicidal ideation and have engaged in deliberate self-harm acts (SH group); and (c) individuals with no history of suicidal ideation or deliberate self-harm behavior (control group). I was also interested in observing whether the nature of individuals’ suicidal behavior (i.e., cognitive versus cognitive and behavioral) would differentiate individuals’ performance on Self-Aggression Paradigm (behavioral measure of self-aggression; SAP) and Suicide-Implicit Association Test (reaction-time based measure of implicit cognitive associations with death/suicide; S-IAT). Forty-eight participants consisting of college students and community members were recruited for this study. I predicted that (1) The SH group would exhibit the largest LDAEP slope, followed by the SI group, and finally the Control group; (2) The SH group would obtain the largest mean shock score and would self-select the highest number of “20” shock, followed by the SI group, and finally the Control group; (3) SI and SH groups would obtain a more negative S-IAT index, indicating pro-suicide tendencies, than the Control group; (4) the LDAEP slope would be positively related to the SAP indexes and negatively related to S-IAT index; and (5) the LDAEP would be positively related to the self-report measures of self-harm behavior and aggression, and negatively related to self-report measure of reasons for living. Contrary to expectations, most of our predictions were not supported. Clinical implications and future research directions are discussed.
机译：已经提出听觉诱发电位（LDAEP）的响度依赖性是与行为相关的中枢5-HT功能的有前途的有效和非侵入性指标。关于LDAEP在区分参与不同程度自杀行为的个人方面的用途的研究很少。本研究的主要目的是检验LDAEP作为中枢5-羟色胺能功能的量度对区分以下人群是否有用：（a）仅经历自杀念头（SI组）； （b）经历过自杀念头并蓄意从事自残行为（上海小组）； （c）没有自杀意念或有故意自残行为的人（对照组）。我还对观察个体的自杀行为（即认知与认知和行为）的性质是否会区分个体在自我攻击范式（自我攻击的行为度量； SAP）和自杀-隐性联想测验（基于反应时间的与死亡/自杀的内隐认知联系的量度； S-IAT）。这项研究招募了由大学生和社区成员组成的48名参与者。我预测（1）SH组的LDAEP斜率最大，其次是SI组，最后是对照组。 （2）SH组将获得最大的平均电击得分，并自行选择数量最多的“ 20”次电击，其次是SI组，最后是对照组。 （3）与对照组相比，SI和SH组的S-IAT指数更负，表明有自杀倾向。 （4）LDAEP斜率与SAP指数呈正相关，与S-IAT指数呈负相关； （5）LDAEP与自我伤害行为和攻击行为的自我报告测度呈正相关，与与生活原因自我报告的测度呈负相关。与期望相反，我们的大多数预测均不受支持。临床意义和未来的研究方向进行了讨论。

著录项

  • 作者

    Marsic, Angelika.;

  • 作者单位

    The University of Southern Mississippi.;

  • 授予单位 The University of Southern Mississippi.;
  • 学科 Psychology Psychobiology.
  • 学位 Ph.D.
  • 年度 2012
  • 页码 125 p.
  • 总页数 125
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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