Early and Late Components of Error Monitoring in Violent Offenders with Psychopathy
Early and Late Components of Error Monitoring in Violent Offenders with Psychopathy
复制标题
DOI：
10.1016/j.biopsych.2008.08.011
复制
发表时间：
2009-01-15
影响因子：
10.6
通讯作者：
Verkes, Robbert J.
中科院分区：
文献类型：
--
作者：
Brazil, Inti A.;de Bruijn, Ellen R. A.;Verkes, Robbert J.
背景：精神病最明显的特征之一是成功学习和适应明显行为的能力下降。这可能是由于错误信息处理不足，表明需要适应受控行为。方法：对 16 名精神病患者和 18 名健康受试者的事件相关电位 (ERP) 和错误监控过程的行为成分进行了调查。埃里克森侧翼任务的字母版本在两种情况下使用。第一个条件（正常条件）要求参与者根据目标刺激的身份按下两个按钮中的一个。第二个条件（信号条件）要求他们在每次犯错时通过第二次按下信号按钮来发出信号。使用错误相关负值（ERN/Ne）和错误后减速作为指标来研究错误监控的早期阶段。通过检查错误阳性率 (Pe) 和信号发送率来探索后期阶段。结果：两组均显示出相似的 ERN 幅度和错误后减慢量。与对照组相比，精神病组表现出 Pe 幅度降低和错误信号率降低。结论：精神病个体表现出完整的早期错误处理和自动行为适应，但在错误处理和受控行为适应的后期阶段存在缺陷。这表明患有精神病的人无法有效地利用错误信息来充分改变他们的行为。
Background: One of the most recognizable features of psychopathy is the reduced ability to successfully learn and adapt overt behavior. This might be due to deficient processing of error information indicating the need to adapt controlled behavior.Methods: Event-related potentials (ERPs) and behavioral components of error-monitoring processes were investigated in 16 individuals with psychopathy and in 18 healthy subjects. A letter version of the Eriksen flanker task was used in two conditions. The first condition (normal condition) required participants to press one of two buttons depending on the identity of the target stimulus.The second condition (signaling condition) required them to signal each time they had committed an error by making a second press on a signaling button. Early stages of error monitoring were investigated by using the error-related negativity (ERN/Ne) and post-error slowing as indexes. Later stages were explored by examining the error positivity (Pe) and signaling rates.Results: Both groups showed similar ERN amplitudes and amounts of post-error slowing. The psychopathic group exhibited both reduced Pe amplitudes and diminished error-signaling rates compared with the control group.Conclusions: Individuals with psychopathy show intact early error processing and automatic behavioral adaptation but have deficits in later stages of error processing and controlled behavioral adaptation. This is an indication that individuals with psychopathy are unable to effectively use error information to change their behavior adequately.