左侧眶额皮层在自动情绪调节下注意选择中的作用：来自经颅直流电刺激的证据

前人研究表明自动情绪调节能够自上而下地影响情绪及情绪性注意过程。近来有研究提示自动情绪调节与眶额皮层(orbitofrontal cortex, OFC)有关。也有研究表明左侧OFC的激活影响负性注意偏向。本研究采用经颅直流电刺激技术, 考察阈下启动情绪控制目标条件下, 抑制左侧眶额皮层兴奋性是否影响负性注意偏向。结果发现, 使用阴极刺激抑制左侧OFC活动可以加快被试对与恐惧刺激位置一致的探测点的反应。该结果提示左侧眶额皮层是自动情绪调节下情绪性注意选择相关的重要脑区。

The role of left orbitofrontal cortex in selective attention during automatic emotion regulation: Evidence from transcranial direct current stimulation

Emotion regulation plays an important role in maintaining mental balance. Automatic emotion regulation is an important aspect of emotion regulation. Previous studies has found that automatic emotion regulation can influence emotional attention bias, and the activation of the left orbitofrontal cortex (OFC) was related to attention allocation to negative emotional stimuli. Although previous studies have provided evidence to the involvement of left OFC in the mechanism of automatic emotion regulation's influence on attention, little studies provided evidences for this hypothesis by manipulating the activation of left OFC. In order to examine the role of left OFC in attention allocation under automatic emotion regulation, the present study manipulates the cortical excitability by using transcranial direct current stimulation (tDCS). We hypothesized that under the cathodal stimulation codition, the effect of subliminal emotional control words on attention avoidance of fear stimulation was diminished.