本文選題：身體姿勢表情 + 面孔表情　； 參考：《心理學報》2015年08期

【摘要】：面孔和身體姿勢均為日常交往中情緒性信息的重要載體,然而目前對后者的研究卻很少。本文采用事件相關(guān)電位(ERP)技術(shù),考察了成年被試對恐懼和中性身體姿勢的加工時程,并將此與同類表情的面孔加工ERP結(jié)果進行比較。結(jié)果發(fā)現(xiàn),與情緒性面孔加工類似,大腦對情緒性身體姿勢的加工也是快速的,早在P1階段即可將恐懼和中性的身體姿勢區(qū)分開來,同時身體姿勢圖片比面孔圖片誘發(fā)了更大的枕區(qū)P1成分。與情緒性面孔相比,情緒性身體姿勢誘發(fā)出的N170和VPP幅度較小,潛伏期較短,這兩個ERP成分能區(qū)分恐懼和中性的面孔,但不能區(qū)分恐懼和中性的身體姿勢,說明在情緒性信息加工的中期階段,大腦在身體姿勢加工方面的優(yōu)勢不如在面孔加工方面的優(yōu)勢大。最后,在加工的晚期階段,P3可區(qū)分情緒載體和情緒類別,且在兩個主效應(yīng)上均產(chǎn)生了較大的效應(yīng)量,體現(xiàn)了大腦在此階段對情緒性信息的更深入的加工。本研究提示,情緒性身體姿勢和面孔的加工具有相似性,但與情緒性面孔相比,大腦似乎對情緒性身體姿勢的加工在早期階段(P1時間窗)更有優(yōu)勢。本文對情緒性面孔和身體姿勢的結(jié)合研究將有助于深入了解情緒腦的工作機制,同時找到更多的情緒相關(guān)的生物標記物以幫助臨床診斷具有情緒認知障礙的精神病患者的腦功能缺損。
[Abstract]:Face and body posture are important carriers of emotional information in daily communication. Event-related potential (ERP) technique was used to investigate the processing time course of fear and neutral body posture in adult subjects, and the results were compared with the ERP results of facial processing of the same facial expressions. It was found that, similar to emotional face processing, the brain processes emotional body postures quickly, distinguishing fear from neutral body postures as early as the P1 stage. At the same time, the body pose image induced a larger occipital P1 component than the face image. The amplitude of N170 and VPP induced by emotional body posture was smaller and the incubation period was shorter than that of emotional faces. These two ERP components could distinguish between fear and neutral faces, but could not distinguish between fear and neutral body posture. It shows that in the middle stage of emotional information processing, the brain has less advantages in body posture processing than in face processing. Finally, in the late stage of processing, P3-3 can distinguish the emotional carrier from the emotional category, and has a large effect on the two main effects, which reflects the deeper processing of emotional information in the brain at this stage. This study suggests that the processing of emotional body posture is similar to that of face, but the brain seems to have more advantages in the processing of emotional body posture than emotional face in the early stage. The research on the combination of emotional face and body posture will be helpful to understand the working mechanism of emotional brain. At the same time, more emotional biomarkers were found to help clinical diagnosis of mental disorders with emotional cognitive impairment of brain function.
【作者單位】： 深圳大學情緒與社會認知科學研究所;
【基金】：國家自然基金(31300867;81471376) 國家基礎(chǔ)研究計劃(973:2014CB744600)資助
【分類號】：B842

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