■获得性脑损伤(ABI)后的自我意识(SA)受损传统上与执行功能缺陷有关。然而,文献中已经报道了关于这种关系的相互矛盾的发现。这种不一致可能是由于两种结构的多组分性质,因为并非执行功能的所有方面都可能与自我意识的所有组成部分同等相关。本研究探讨了离线SA(即元认知知识)和在线SA(即错误检测)是否与较少研究的执行组件有关,冲突监控/解决。
■26名ABI患者执行了三冲突认知控制任务(3CCT),一项实验任务,允许测量监控和解决三种不同类型冲突的能力(Distractors-filtering,SpatialStroop和Simon)。收集SA的测量值:离线SA基于患者日常功能困难的自我信息差异,在线SA基于基于性能的自然任务(早餐冲突任务)期间的错误检测能力。
■在控制全球认知之后,3CCT的冲突监测措施在预测自然任务中测量的离线和在线SA方面开始增加有效性。
■冲突监视/解决似乎是SA的重要组成部分。这一发现有助于进一步理解执行功能与SA之间的关系。此外,冲突监测/解决是在设计应对ISA的评估和干预策略时应该考虑的执行部分。
UNASSIGNED: Impaired self-awareness (SA) after acquired brain injury (ABI) has traditionally been linked to deficits in executive functions. However, conflicting findings about this relationship have been reported in the literature. This inconsistency is probably due to the multicomponent nature of both constructs, as not all aspects of executive functions may be equally relevant to all components of self-awareness. This study explored whether offline SA (i.e. metacognitive knowledge) and online SA (i.e. error detection) relate to a less studied executive component, conflict monitoring/resolution.
UNASSIGNED: Twenty-six patients with ABI performed the Three-Conflict Cognitive Control Task (3CCT), an experimental task that allowed to measure the ability to monitor and solve three different types of conflicts (Distractors-filtering, Spatial Stroop and Simon). Measures of SA were collected: offline SA was based on self-informant discrepancy about patient\'s everyday functional difficulties, and online SA was based on error detection abilities during a performance-based naturalistic task (The Breakfast Conflict Task).
UNASSIGNED: After controlling for global cognition, the conflict monitoring measure of 3CCT demonstarted incremental validity in predicting offline and online SA measured in naturalistic tasks.
UNASSIGNED: Conflict monitoring/resolution seems to be an important component of SA. This finding contributes to further understand the relationship between executive functions and SA. In addition, conflict monitoring/resolution is an executive component that should be considered when designing assessment and intervention strategies to deal with ISA.