Introduction

The conflict monitoring system exerts an influence on centers responsible for cognitive control, causing them to intervene more strongly in processing when conflict occurs. These mechanisms are usually investigated through specific tasks where there is an inherent interference elicited by the congruency or incongruency between the stimuli and responses, such as the Stroop task. In studies of emotional conflict, one hypothesis related to the dorsal anterior cingulate cortex (ACC) is that it serves, in part, to signal the appearance of conflicts, thus triggering compensatory adjustments. This study aims to verify whether the conflict monitoring hypothesis is confirmed in a group with Alzheimer’s disease and, therefore, whether they exhibit a reduction in their reaction times.

Method

A group of healthy older adults (HOA) and a group with Major Neurocognitive Disorders due to probable AD were evaluated to test the conflict monitoring hypothesis with an emotional Stroop task.

Results

A significant interaction was obtained on the word and faces blocks. In the HOA group, a reduction in reaction times was observed, whereas in the AD groups, no reduction in reaction times was obtained.

Conclusions

Whereas in HOA the conflict monitoring hypothesis is confirmed, in the Major Neurocognitive Disorders due to probable AD group there is no reduction in their reaction times on the high conflict resolution trials (incongruent trials that follow incongruent trials) due to their difficulty in making compensatory adjustments to cognitive control that help them to reduce conflict and improve their success rate.

中文翻译：

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在情感Stroop任务上进行冲突监视。健康老年人和可能患有AD的主要神经认知障碍患者的比较。

介绍

冲突监控系统会对负责认知控制的中心产生影响，从而使它们在发生冲突时更加强烈地干预过程。这些机制通常通过特定的任务进行研究，在这些任务中，刺激和响应之间的一致性或不一致会引起固有干扰，例如Stroop任务。在情感冲突研究中，与背扣带回前皮（ACC）有关的一种假设是，它在某种程度上起到了标志冲突发生的作用，从而触发了补偿性调整。这项研究旨在验证冲突监测假说是否在阿尔茨海默氏病组中得到证实，因此，他们是否表现出缩短的反应时间。

方法

评估了一组健康的老年人（HOA）和一组由于可能的AD而导致的重大神经认知障碍，以通过情感Stroop任务测试冲突监测假说。

结果

在单词和面块上获得了显着的交互作用。在HOA组中，观察到反应时间减少，而在AD组中，未观察到反应时间减少。

结论

在HOA中，冲突监控假设得到了确认，而在可能的AD组引起的主要神经认知障碍中，由于难以进行补偿性调整，因此在高冲突解决方案试验（不一致试验之后的不一致试验）中，它们的反应时间没有减少。认知控制，帮助他们减少冲突并提高成功率。