On the interaction between sad mood and cognitive control: The effect of induced sadness on electrophysiological modulations underlying Stroop conflict processing
On the interaction between sad mood and cognitive control: The effect of induced sadness on electrophysiological modulations underlying Stroop conflict processing
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DOI：
10.1016/j.ijpsycho.2012.11.014
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发表时间：
2013-03-01
影响因子：
3
通讯作者：
Liotti, Mario
中科院分区：
文献类型：
--
作者：
Nixon, Elena;Liddle, Peter F.;Liotti, Mario
本研究采用高密度ERP技术，在色词Stroop干扰任务中考察了悲伤情绪对冲突监控和解决的时空相关性的影响。神经影像学证据和偶极子模型暗示前扣带皮层（ACC）和内侧前额叶皮层（mPFC）区域参与冲突负载的干扰控制。在此基础上，这些结构已被发现介导情绪-认知的相互作用，在消极的情绪状态，它被预测，Stroop相关的认知控制，这在很大程度上依赖于前神经源，将受到有效的悲伤情绪的挑衅。健康参与者（N = 14）通过使用自传体悲伤脚本（一种经过充分验证的情绪诱导技术）被诱导进入短暂的悲伤（Liotti等人，2000 a，2002年）。在雅阁与以前的研究中，干扰效应显示在基线和悲伤的状态，而Stroop冲突与早期（N450）和晚期（晚阳性成分; LPC）在这两个国家的电生理调制。悲伤情绪诱导减弱了N450的作用，这与我们的预期一致，即它很容易受到情绪的调节，因为它的来源是前边缘系统。LPC效应显示在典型的后外侧部位，但正如预测的那样，不受悲伤情绪的影响。然而，额中央LPC活动可能产生的额外的前边缘系统的来源受到影响，在悲伤的状态，暗示在冲突监测的作用。虽然干扰控制的神经生理学基础尚待澄清，这项研究提供了进一步的洞察情绪认知互动的索引Stroop冲突负载处理。(C)2013爱思唯尔有限公司版权所有。
The present study employed high-density ERPs to examine the effect of induced sad mood on the spatiotemporal correlates of conflict monitoring and resolution in a colour-word Stroop interference task. Neuroimaging evidence and dipole modelling implicates the involvement of the anterior cingulate cortex (ACC) and medial prefrontal cortex (mPFC) regions in conflict-laden interference control. On the basis that these structures have been found to mediate emotion-cognition interactions in negative mood states, it was predicted that Stroop-related cognitive control, which relies heavily on anterior neural sources, would be affected by effective sad mood provocation. Healthy participants (N = 14) were induced into transient sadness via use of autobiographical sad scripts, a well-validated mood induction technique (Liotti et al., 2000a, 2002). In accord with previous research, interference effects were shown at both baseline and sad states while Stroop conflict was associated with early (N450) and late (Late Positive Component; LPC) electrophysiological modulations at both states. Sad mood induction attenuated the N450 effect in line with our expectation that it would be susceptible to modulation by mood, given its purported anterior limbic source. The LPC effect was displayed at the typical posterior lateral sites but, as predicted, was not affected by sad mood. However, frontocentral LPC activity presumably generated from an additional anterior limbic source was affected at sad state, hinting a role in conflict monitoring. Although the neurophysiological underpinnings of interference control are yet to be clarified, this study provided further insight into emotion-cognition interactions as indexed by Stroop conflict-laden processing. (C) 2013 Elsevier B.V. All rights reserved.