Department of Psychology.
Yale University School of Medicine.
J Abnorm Psychol. 2020 May;129(4):422-431. doi: 10.1037/abn0000509. Epub 2020 Mar 12.
Impaired cognition and amotivation are considered core features of psychotic disorders. Amotivation may manifest as reduced willingness to expend effort on cognitive tasks. It remains unclear whether reduced effort is responsible for any of the observed cognitive deficits in these patients, as we do not generally assess continuous effort during testing. In the current study, we tested whether disengagement of effort is greater during cognitive performance in individuals with first-episode psychosis (FEP) compared with healthy community members. We used a novel task called Cognitive Effort and DisEngagement (CEDE), which increases in difficulty and permits skipping any trial without penalty. No additional monetary incentives were used, and skips were used as an index of effort disengagement. We found that FEP patients had lower overall accuracy on the CEDE, but they also skipped significantly more, specifically on difficult trials. Self-reported amotivation significantly predicted skips among patients. The present results suggest that disengagement of effort may account for a portion of cognitive test performance among individuals with FEP. This possibility is relevant to cognitive remediation, as effort and ability may optimally be targeted by different interventions. (PsycInfo Database Record (c) 2020 APA, all rights reserved).
认知障碍和动机缺乏被认为是精神病性障碍的核心特征。动机缺乏可能表现为减少在认知任务上付出努力的意愿。目前尚不清楚在这些患者中观察到的任何认知缺陷是否是由于努力程度降低所致,因为我们通常不在测试期间评估连续努力。在当前的研究中,我们测试了首发精神病(FEP)患者与健康社区成员相比,在认知表现期间是否表现出更大的努力脱离。我们使用了一种称为认知努力和脱离(CEDE)的新任务,该任务的难度逐渐增加,并且允许跳过任何没有惩罚的试验。没有使用额外的金钱奖励,跳过被用作努力脱离的指标。我们发现,FEP 患者在 CEDE 上的整体准确性较低,但他们也明显跳过了更多的内容,特别是在困难的试验中。自我报告的动机缺乏症显著预测了患者的跳过次数。目前的结果表明,努力脱离可能解释了 FEP 个体认知测试表现的一部分。这种可能性与认知矫正有关,因为努力和能力可能需要不同的干预措施来最佳地针对。(PsycInfo 数据库记录(c)2020 APA,保留所有权利)。