Task-irrelevant emotional faces impair response adjustments in a double-step saccade task
Task-irrelevant emotional faces impair response adjustments in a double-step saccade task
复制标题
与任务无关的情绪面孔会损害双步扫视任务中的反应调整
DOI：
10.1080/02699931.2017.1386621
复制
发表时间：
2018
影响因子：
2.6
通讯作者：
Ling Li
中科院分区：
文献类型：
--
作者：
Zhenlan Jin;Shulin Yue;Junjun Zhang;Ling Li
摘要 认知控制使我们能够根据任务需求调整行为，而情绪影响认知控制。我们研究了与任务无关的情绪刺激如何影响抑制已准备好的反应，然后编程另一个适当的反应的能力。在这项研究中，在情绪面部图像（积极、中性和消极）之后出现单个目标或两个连续目标。受试者被要求自由地观看情绪面孔，并在目标出现时快速扫视，但抑制最初的扫视，并将目光转向第二个目标（如果出现）。我们发现，随着目标间延迟的增加，受试者在抑制最初的眼跳方面不太成功。情绪化的面孔在较长的延迟下会进一步降低其抑制能力，但在较短的延迟下则不会。当受试者未能抑制最初的扫视时，较长的延迟会产生较长的扫视间隔。特别是，正面的面孔延长了扫视间隔，延迟时间更长。这些结果表明，仅仅存在情绪刺激就会通过削弱取消准备好的扫视的能力并延迟纠正扫视的编程来影响注视重定向。因此，我们认为情绪面孔对反应调节的调节与初始反应编程阶段有关。
ABSTRACT Cognitive control enables us to adjust behaviours according to task demands, and emotion influences the cognitive control. We examined how task-irrelevant emotional stimuli impact the ability to inhibit a prepared response and then programme another appropriate response. In the study, either a single target or two sequential targets appeared after emotional face images (positive, neutral, and negative). Subjects were required to freely viewed the emotional faces and make a saccade quickly upon target onset, but inhibit their initial saccades and redirect gaze to the second target if it appeared. We found that subjects were less successful at inhibiting their initial saccades as the inter-target delay increased. Emotional faces further reduced their inhibition ability with a longer delay, but not with a shorter delay. When subjects failed to inhibit the initial saccade, the longer delay produced longer intersaccadic interval. Especially, positive faces lengthened the intersaccadic interval with a longer delay. These results showed mere presence of emotional stimuli influences gaze redirection by impairing the ability to cancel a prepared saccade and delaying the programming of a corrective saccade. Therefore, we propose that the modulation of response adjustment exerted by emotional faces is related to the stage of initial response programming.