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【摘要】：本研究以身體姿勢表情圖片為實驗材料,采用新的偏側化研究范式,通過兩個實驗探究正置與倒置條件下身體姿勢表情識別的大腦功能偏側化與合作加工。實驗一采用方向(正置、倒置)、干擾刺激位置(左干擾、右干擾、無干擾)和情緒性(有表情、無表情)的設計,任務是判斷呈現的身體姿勢圖片有無表情。結果顯示:正置的正確率和反應時的方向的主效應都顯著,出現了明顯的倒置效應;情緒性的正確率和反應時主效應都顯著,表現為有表情的姿勢圖片識別的正確率顯著高于中性姿勢圖片,有表情的姿勢圖片識別的反應時顯著短于中性身體表情的反應時。但是,在正確率和反應時上干擾刺激位置的主效應都不顯著,各變量間的交互效應在正確率和反應時上均不顯著。這些結果表明,在無需外顯加工效價的條件下正置與倒置的身體姿勢表情識別都沒有出現偏側化加工與合作加工的效應。實驗二采用方向(正置、倒置)、干擾刺激位置(左干擾、右干擾、無干擾)和情緒效價(恐懼、憤怒、高興)的設計,任務是判斷身體姿勢表情表達的情緒效價。結果顯示:(1)在正確率上正置高于倒置的方向主效應顯著;在正確率和反應時上情緒效價的主效應都顯著;在正確率和反應時上干擾刺激位置的主效應都不顯著。(2)方向和情緒效價的交互作用在正確率和反應時上都顯著,表現為:憤怒和高興身體姿勢表情識別的正確率都出現了倒置效應,但恐懼和高興身體姿勢表情識別的反應時出現了倒置效應的反轉。(3)干擾刺激位置和情緒效價的交互作用在正確率上不顯著,但在反應時上顯著,表現為只有憤怒身體姿勢表情在無干擾條件下的反應時顯著短于左干擾和右干擾的反應時。這些結果表明,在需要外顯加工效價的條件下,身體姿勢表情識別的倒置效應會受到情緒效價的影響,但是,在正確率上傾向于出現倒置效應,而反應時上則出現反轉。而且,盡管正置與倒置的身體姿勢表情識別沒有出現偏側化,但憤怒的身體姿勢表情加工可能存在半球間的合作效應。研究結論:(1)身體姿勢表情的識別可能不存在明顯的半球偏側化效應,這與身體姿勢表征的腦區(qū)分布于大腦左右兩半球有關;(2)只有憤怒身體姿勢表情的識別出現了半球間的合作效應,這可能與憤怒身體表情的加工較難有關;(3)任務加工條件會影響方向與情緒效價交互效應,以及干擾刺激位置與情緒效價的交互效應。
[Abstract]:In this study, the body posture expression images were used as experimental materials, and a new lateralization paradigm was used to explore the lateralization and co-processing of the brain function of body posture facial expression recognition under positive and inverted conditions through two experiments. In experiment 1, the design of direction (positive, inverted), interference of stimulus position (left interference, right interference, no interference) and emotion (expressionless, expressionless) was used. The task of the experiment was to judge whether there was an expression in the body pose picture. The results showed that the positive correct rate and the main effect of the direction of reaction were significant, and obvious inversion effect appeared. The correct rate of emotion and the main effect of reaction time were significant, which showed that the correct rate of recognition of facial pose picture was significantly higher than that of neutral pose picture, and the response time of facial pose image recognition was significantly shorter than that of neutral body expression. However, the main effect of interfering the stimulus position in the correct rate and the response time is not significant, and the interaction effect among the variables is not significant in the correct rate and the response time. These results show that neither positive nor inverted body postural facial expression recognition has the effect of sideways processing and cooperative processing without explicit processing titer. In experiment 2, the design of direction (positive, inverted), interference of stimulating position (left, right, no interference) and emotional titer (fear, anger, joy) was used. The task was to judge the emotional titer of the expression of body postural expression. The results showed that: (1) the main effect of the correct rate was higher than that of the inverted direction, and the main effect of emotional titer was significant in the correct rate and reaction time; (2) the interaction between direction and emotion titer was significant in both correct rate and response time. The results are as follows: the correct rate of recognition of body posture and expression of anger and joy is reversed, But there was a reversal of the reverse effect in the reaction of recognition of fear and happy body postural expression. (3) the interaction between the interfering position and the emotional titer was not significant in the correct rate, but it was significant in the reaction time. The response time of only angry body postural expression was significantly shorter than that of left interference and right interference. These results show that the inversion effect of body postural expression recognition will be affected by emotional titer when explicit processing titer is needed, but the correct rate tends to be inverted and the reaction time is reversed. Furthermore, although there is no lateralization in positive and inverted body postural facial expression recognition, there may be a hemispheric cooperative effect in the process of angry body postural expression. Conclusions: (1) there may be no obvious hemispheric lateralization effect in the recognition of body postural expressions, which is related to the distribution of the brain regions represented by body postures in the left and right hemispheres of the brain; (2) only the recognition of angry body postural expression has the effect of hemispherical cooperation, which may be related to the difficulty of processing angry body expression; (3) the task processing condition will influence the interaction between direction and emotional titer, as well as the interaction effect of interfering stimulus position and emotional titer.
【學位授予單位】：南京師范大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：B842

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相關期刊論文 前1條

1 何振宏;趙婷;張丹丹;;正立和倒立的威脅性身體表情的識別[J];心理科學;2016年01期

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本文編號：2354021