Department of Psychology.
Department of Human Development and Family Sciences, University of Texas.
Emotion. 2015 Oct;15(5):550-5. doi: 10.1037/emo0000068. Epub 2015 Apr 6.
Asymmetric frontal cortical activity may be one key to the process linking social exclusion to jealous feelings. The current research examined the causal role of asymmetric frontal brain activity in modulating jealousy in response to social exclusion. Transcranial direct-current stimulation (tDCS) over the frontal cortex to manipulate asymmetric frontal cortical activity was combined with a modified version of the Cyberball paradigm designed to induce jealousy. After receiving 15 min of tDCS, participants were excluded by a desired partner and reported how jealous they felt. Among individuals who were excluded, tDCS to increase relative left frontal cortical activity caused greater levels of self-reported jealousy compared to tDCS to increase relative right frontal cortical activity or sham stimulation. Limitations concerning the specificity of this effect and implications for the role of the asymmetric prefrontal cortical activity in motivated behaviors are discussed.
不对称的额皮质活动可能是将社会排斥与嫉妒感联系起来的关键过程之一。本研究考察了不对称额皮质活动在调节对社会排斥的嫉妒反应中的因果作用。经颅直流电刺激（tDCS）作用于额皮质以操纵不对称的额皮质活动，同时结合了一种改良的 Cyberball 范式，旨在引发嫉妒感。接受 15 分钟 tDCS 后，参与者被心仪的伙伴排斥，并报告他们感到有多嫉妒。在被排斥的个体中，与 tDCS 增加相对右侧额皮质活动相比，tDCS 增加相对左侧额皮质活动导致更高水平的自我报告的嫉妒感。讨论了这种效应的特异性限制以及不对称的前额皮质活动在动机行为中的作用。
