The Effects of Prior Cognitive Control Task Exposure on Responses to Emotional Tasks in Healthy Participants
The Effects of Prior Cognitive Control Task Exposure on Responses to Emotional Tasks in Healthy Participants
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DOI：
10.1017/s1352465810000652
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发表时间：
2011-03-01
影响因子：
1.8
通讯作者：
Siegle, Greg J.
中科院分区：
文献类型：
--
作者：
Calkins, Amanda W.;Deveney, Christen M.;Siegle, Greg J.
背景：认知训练策略作为精神障碍干预措施的应用最近取得了进展。一种新的方法，认知控制训练(CCT)，使用基于计算机的练习来慢性地增加前额叶皮质的招募。前额叶控制机制的激活与情绪反应的减弱有明确的联系。然而，尚不清楚前额叶资源的招募是否单独在这方面起作用，或者前额叶控制是否只在外显情绪调节中起重要作用。这项研究考察了情绪挑战前的认知任务是否会减弱情绪挑战的影响。目的：我们调查了一次训练是否会改变参与者在两个基于计算机的任务中对后续情绪刺激的反应，以及影响在研究期间做出的评级。我们假设，与执行周边视觉(PV)比较任务的人相比，执行认知控制(CC)任务的个体将(1)在情绪诱导和情绪任务之后报告减少的负面情绪，(2)在情绪任务的反应和恢复阶段都表现出对负面刺激的反应减少(由较低的情感评级定义)，以及(3)对威胁信息的偏见减少。方法：59名健康受试者被随机分为CC任务组或PV组，接受负性情绪诱导，然后对IAPS图像进行效价和唤醒评分，并完成注意偏向的评估。结果：结果表明，单次CC训练并不能一致地改变参与者对任一任务的反应。然而，CC任务的表现与随后的情绪图像评分相关。结论：虽然总体来说，这些结果并不支持让健康志愿者在情感任务前使用前额叶皮质来改变情感反应的观点，但它们在研究设计问题和未来研究方向的背景下进行了讨论。
Background: Recent advances have been made in the application of cognitive training strategies as interventions for mental disorders. One novel approach, cognitive control training (CCT), uses computer-based exercises to chronically increase prefrontal cortex recruitment. Activation of prefrontal control mechanisms have specifically been identified with attenuation of emotional responses. However, it is unclear whether recruitment of prefrontal resources alone is operative in this regard, or whether prefrontal control is important only in the role of explicit emotion regulation. This study examined whether exposure to cognitive tasks before an emotional challenge attenuated the effects of the emotional challenge. Aims: We investigated whether a single training session could alter participants' reactivity to subsequent emotional stimuli on two computer-based tasks as well as affect ratings made during the study. We hypothesized that individuals performing the Cognitive Control (CC) task as compared to those performing the Peripheral Vision (PV) comparison task would (1) report reduced negative affect following the mood induction and the emotion task, and (2) exhibit reduced reactivity (defined by lower affective ratings) to negative stimuli during both the reactivity and recovery phases of the emotion task and (3) show a reduced bias towards threatening information. Method: Fifty-nine healthy participants were randomized to complete CC tasks or PV, underwent a negative mood induction, and then made valence and arousal ratings for IAPS images, and completed an assessment of attentional bias. Results: Results indicated that a single-session of CC did not consistently alter participants' responses to either task. However, performance on the CC tasks was correlated on subsequent ratings of emotional images. Conclusions: While overall these results do not support the idea that affective responding is altered by making healthy volunteers use their prefrontal cortex before the affective task, they are discussed in the context of study design issues and future research directions.