面孔方向和面孔性别对情绪偏侧化加工的影响：来自嵌合脸范式的证据
发布时间：2019-01-19 09:39
【摘要】：目的:大脑两半球加工面孔情绪的能力有差异,但是,目前的研究结果还没有达成一致。本研究采用嵌合脸实验,通过控制不同表情面孔的呈现方向和性别差异,进一步探究大脑两半球加工情绪的偏侧化机制。方法:采用嵌合脸范式,在屏幕上方和下方同时呈现嵌合脸对,检查了 110名大学生(男生50名、女生60名)被试。实验采用2面孔方向(正置,倒置)×2面孔性别(男性,女性)×4情绪类型(高兴、悲伤、惊讶、愤怒)的三因素被试内设计,被试的任务是判断嵌合脸对中哪张面孔所表达的情绪更强。结果:(1)正置呈现男性和女性四种情绪面孔时,被试偏向于选择情绪表情呈现在左视野的面孔,且左视野中情绪表情的反应显著快于右视野情绪表情的反应。但是,正置的四种男性情绪面孔的左视野(右半球)偏向没有差异,正置的四种女性情绪面孔的左视野(右半球)偏向有差异,且悲伤比高兴、惊讶和愤怒有更大的左视野(右半球)偏向;(2)倒置呈现男性和女性四种情绪面孔时,被试偏向于选择情绪表情呈现在右视野的面孔,且右视野中情绪表情的反应快于左视野中情绪表情的反应,但是没有达到显著性水平。倒置的四种男性情绪面孔的右视野(左半球)偏向有差异,且高兴比悲伤、惊讶和愤怒有更大的右视野(左半球)偏向;倒置的四种女性情绪面孔的右视野(左半球)偏向也有差异,且高兴比愤怒有更大的右视野(左半球)偏向,惊讶比悲伤、愤怒有更大的右视野(左半球)偏向;(3)总体上来说,偏侧化系数与反应时偏差显著正相关,即个体左视野偏向程度越大,选择左视野中情绪面孔的反应就越快;个体右视野偏向程度越大,选择右视野中情绪面孔的反应就越快。且回归分析发现,偏侧化系数可以很好地预测反应时偏差。结论:(1)正置的情绪面孔有显著的左视野(右半球)偏向;倒置的情绪面孔有显著的右视野(左半球)偏向。这些发现支持“大脑每个半球加工面部情绪的能力有差异”这个假设,即右半球在结构加工中有优势,左半球在特征加工中有优势;(2)正置男性面孔的性别信息不影响情绪面孔的结构加工,但是正置女性面孔的性别信息影响情绪面孔的结构加工,且悲伤的女性面孔有更大的右半球加工优势;倒置男性面孔的性别信息影响情绪面孔的特征加工,且高兴的男性面孔有更大的左半球加工优势;倒置女性面孔的性别信息影响情绪面孔的特征加工,且高兴与惊讶的女性而孔有更大的左半球加工优势;(3)偏侧化系数与反应时偏差这两种不对称测量显著正相关,说明偏侧化系数与反应时偏差研究为情绪偏侧化加工提供了一致的不对称证据。
[Abstract]:Objective: there are differences in the ability of the two hemispheres to process facial emotions, but the results have not been agreed. In this study, chimeric face experiments were used to further explore the lateralization mechanism of processing emotions in the two hemispheres of the brain by controlling the orientation and gender differences of different facial expressions. Methods: the chimeric face pairs were presented at the top and bottom of the screen using the chimeric face paradigm. 110 college students (50 males and 60 females) were examined. The subjects were designed with 2 face orientation (positive, inverted) 脳 2 face sex (male, female) 脳 4 mood types (happy, sad, surprised, angry). The task of the subjects was to determine which face expressed more emotion than the chimeric face. Results: (1) when the male and female emotional faces were presented positively, the subjects tended to choose the faces with the emotional expression in the left visual field, and the response of the emotional expression in the left visual field was significantly faster than that in the right visual field. However, there was no difference in the left visual field (right hemisphere) bias of the four positive male emotional faces, while the left visual field (right hemisphere) bias of the positive four female emotional faces was different, and sadness was more than happy. Surprise and anger have a larger left field of vision (right hemisphere) bias; (2) when the male and female emotional faces were inverted, the subjects tended to choose the faces with the emotional expression in the right visual field, and the response of the emotional expression in the right visual field was faster than that in the left visual field. But not at a significant level. The right visual field (left hemisphere) bias of the four male emotional faces was different, and the right visual field (left hemisphere) bias of happiness was greater than that of sadness, surprise and anger. The right visual field (left hemisphere) bias of the four female emotional faces was also different, and the right visual field (left hemisphere) bias of happiness was greater than anger, surprise was more than sadness, anger had greater right visual field (left hemisphere) bias; (3) on the whole, the coefficient of lateralization was positively correlated with the deviation of reaction time, that is, the greater the degree of deviation of individual's left visual field, the faster the reaction of selecting emotional faces in the left field of vision; The greater the degree of deviation of individual right visual field, the faster the reaction of choosing emotional faces in right visual field. Regression analysis shows that the skew coefficient can well predict the reaction time deviation. Conclusion: (1) the positive emotional faces have significant left visual field (right hemispheric) bias, while the inverted emotional faces have significant right visual field (left hemisphere) bias. These findings support the hypothesis that there are differences in the ability of each hemisphere of the brain to process facial emotions: the right hemisphere has an advantage in structural processing, while the left hemisphere has an advantage in feature processing; (2) the gender information of positive male faces does not affect the structural processing of emotional faces, but the gender information of positive female faces affects the structural processing of emotional faces, and the sad female faces have greater right hemispheric processing advantages; The gender information of inverted male faces affects the processing of emotional faces, and the happy male faces have greater left hemispheric processing advantages. The gender information of inverted female faces affected the processing of emotional faces, and the female who were happy and surprised had more advantage in left hemisphere processing. (3) there is a significant positive correlation between the partial lateralization coefficient and the reaction time deviation, which indicates that the study of the partial lateralization coefficient and the reaction time deviation provides consistent asymmetric evidence for the emotional lateralization process.
【学位授予单位】：南京师范大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：B842
[Abstract]:Objective: there are differences in the ability of the two hemispheres to process facial emotions, but the results have not been agreed. In this study, chimeric face experiments were used to further explore the lateralization mechanism of processing emotions in the two hemispheres of the brain by controlling the orientation and gender differences of different facial expressions. Methods: the chimeric face pairs were presented at the top and bottom of the screen using the chimeric face paradigm. 110 college students (50 males and 60 females) were examined. The subjects were designed with 2 face orientation (positive, inverted) 脳 2 face sex (male, female) 脳 4 mood types (happy, sad, surprised, angry). The task of the subjects was to determine which face expressed more emotion than the chimeric face. Results: (1) when the male and female emotional faces were presented positively, the subjects tended to choose the faces with the emotional expression in the left visual field, and the response of the emotional expression in the left visual field was significantly faster than that in the right visual field. However, there was no difference in the left visual field (right hemisphere) bias of the four positive male emotional faces, while the left visual field (right hemisphere) bias of the positive four female emotional faces was different, and sadness was more than happy. Surprise and anger have a larger left field of vision (right hemisphere) bias; (2) when the male and female emotional faces were inverted, the subjects tended to choose the faces with the emotional expression in the right visual field, and the response of the emotional expression in the right visual field was faster than that in the left visual field. But not at a significant level. The right visual field (left hemisphere) bias of the four male emotional faces was different, and the right visual field (left hemisphere) bias of happiness was greater than that of sadness, surprise and anger. The right visual field (left hemisphere) bias of the four female emotional faces was also different, and the right visual field (left hemisphere) bias of happiness was greater than anger, surprise was more than sadness, anger had greater right visual field (left hemisphere) bias; (3) on the whole, the coefficient of lateralization was positively correlated with the deviation of reaction time, that is, the greater the degree of deviation of individual's left visual field, the faster the reaction of selecting emotional faces in the left field of vision; The greater the degree of deviation of individual right visual field, the faster the reaction of choosing emotional faces in right visual field. Regression analysis shows that the skew coefficient can well predict the reaction time deviation. Conclusion: (1) the positive emotional faces have significant left visual field (right hemispheric) bias, while the inverted emotional faces have significant right visual field (left hemisphere) bias. These findings support the hypothesis that there are differences in the ability of each hemisphere of the brain to process facial emotions: the right hemisphere has an advantage in structural processing, while the left hemisphere has an advantage in feature processing; (2) the gender information of positive male faces does not affect the structural processing of emotional faces, but the gender information of positive female faces affects the structural processing of emotional faces, and the sad female faces have greater right hemispheric processing advantages; The gender information of inverted male faces affects the processing of emotional faces, and the happy male faces have greater left hemispheric processing advantages. The gender information of inverted female faces affected the processing of emotional faces, and the female who were happy and surprised had more advantage in left hemisphere processing. (3) there is a significant positive correlation between the partial lateralization coefficient and the reaction time deviation, which indicates that the study of the partial lateralization coefficient and the reaction time deviation provides consistent asymmetric evidence for the emotional lateralization process.
【学位授予单位】：南京师范大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：B842
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相关期刊论文 前7条
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