Department of Psychology, University of Jyvaskyla, P.O. Box 35, FIN-40100 Jyväskylä, Finland.
Department of Psychology, University of Jyvaskyla, P.O. Box 35, FIN-40100 Jyväskylä, Finland.
Brain Lang. 2020 Dec;211:104861. doi: 10.1016/j.bandl.2020.104861. Epub 2020 Oct 10.
We studied irony comprehension and emotional reactions to irony in dysphoric and control participants. Electroencephalography (EEG) and facial electromyography (EMG) were measured when spoken conversations were presented with pictures that provided either congruent (non-ironic) or incongruent (ironic) contexts. In a separate session, participants evaluated the congruency and valence of the stimuli. While both groups rated ironic stimuli funnier than non-ironic stimuli, the control group rated all the stimuli funnier than the dysphoric group. N400-like activity, P600, and EMG activity indicating smiling were larger after the ironic stimuli than the non-ironic stimuli for both groups. Further, in the dysphoric group the irony modulation was evident in the electrode cluster over the right hemisphere, while no such difference in lateralization was observed in the control group. The results suggest a depression-related alteration in the P600 response associated to irony comprehension, but no alterations were found in emotional reactivity specifically related to irony.
我们研究了抑郁和对照组参与者对反讽的理解和对反讽的情绪反应。当用提供一致（非反讽）或不一致（反讽）语境的图片呈现口语对话时，测量了脑电图（EEG）和面部肌电图（EMG）。在另一个会话中，参与者评估了刺激的一致性和效价。虽然两组都认为反讽刺激比非反讽刺激更有趣，但对照组认为所有刺激都比抑郁组更有趣。对于两组来说，N400 样活动、P600 和表示微笑的 EMG 活动在反讽刺激后比非反讽刺激更大。此外，在抑郁组中，反讽调节在右半球的电极簇中明显，而在对照组中则没有观察到这种侧化差异。结果表明，与反讽理解相关的 P600 反应存在与抑郁相关的改变，但与反讽无关的情绪反应没有改变。
