Please use this identifier to cite or link to this item: https://ah.lib.nccu.edu.tw/handle/140.119/56874
題名: 同理心對於決策中觀察學習的調節作用
Empathy modulates observational learning in decision making
作者: 高常豪
貢獻者: 顏乃欣
高常豪
關鍵詞: 不確定下的決策
增強學習
觀察學習
同理心
decisions under uncertainty
reinforcement learning
observational learning
empathy
日期: 2012
上傳時間: 1-Feb-2013
摘要: 生活中許多決策情境是「不確定下的決策(decisions under uncertainty)」,只瞭解選項的結果,不知道結果發生的機率。人們會累積經驗,以學習到適當的決策。許多證據支持,自身會透過增強學習(reinforcement learning)機制學習,根據每次獲得的經驗,調整對於選項的期望,之後選擇期望最大的選項,幫助做出適當的決策。經驗可以透過自身決策或觀察他人決策所獲得,然而,過去較少研究探討觀察學習。因此,本研究欲探討決策中的觀察學習,並釐清同理心對於觀察學習的調節作用。實驗一中,改善過去了研究限制,量測膚電反應、學習速率與行為表現,讓參與者在自身學習、觀察他人與觀察電腦情境進行作業,並透過同理心問卷測量參與者的同理心特質。結果顯示,觀察學習在正向學習與負向學習不同,正向學習為趨向優勢選項,負向學習為避開劣勢選項。正向學習在三種學習情境中無任何差異,負向學習在觀察他人學習時,會受到同理心的調節作用。同理心分數越高,觀察他人的負向行為表現越好,觀察他人負向回饋的膚電反應越大。實驗一只透過問卷測量同理心,無法推論因果關係,因此實驗二直接操弄了不同的同理程度。回饋呈現的同時,呈現他人的情緒或中性臉孔圖片,以引發參與者的同理程度高或低。實驗中,量測回饋相關負波(Feedback-Related Negativity,FRN)、學習速率與行為表現。如同實驗一,只有負向學習受到同理程度不同的影響。同理程度高時,負向學習表現較好。FRN則顯示了同理程度與預期性的交互作用,同理程度低時,與過去研究一致,非預期FRN比預期FRN更加負向;同理程度高時,則無此預期性效果。雖然FRN無預期性差異,但依然能學習到符號機率,行為表現不受影響,推測可能有其他系統參與決策學習。綜上所述,本研究顯示,只有負向學習中,觀察學習會受到同理心的調節,同理心越高,行為表現越好。
In daily life, we made many decisions under uncertainty. In each decision, we know only the outcome but no probabilities of the outcome. We have to accumulate the experience to learn adaptive decisions. Bunches of studies have shown that people may learn adaptive decisions by reinforcement learning. People modified the expectation for each option according to decision feedbacks, and, in the next time, chose the option with the maximum expectation. People can receive feedback from decisions making by self or others. However, fewer studies examined observational learning in decision making. Therefore, present research would clarify observational learning in decision making, and examine how empathy modulated observational learning. In experiment 1, skin conductance response, learning rate and behavioral performance were recorded and analyzed. Participants would learning decisions in different situations of self learning, observing others and observing computer. The questionnaire of empathy was also measured to examine its modulation in observational learning. The results showed that there were difference in positive learning and negative learning. Positive learning is to approach to the advantageous option, while negative learning is to avoid from the disadvantageous option. In positive learning, there were no difference among the three learning situations, but, in negative learning, empathy would modulate learning by observing others. The higher the empathy score was, the better the behavioral performance of negative learning was. Moreover, the skin conductance response when participants observing others’ negative feedback positively correlated with the empathy score. In experiment 2, the empathy level was manipulated by display pictures of others faces with feedback. Displaying the emotional faces or neutral faces would induce high or low empathy level for others, respectively. The feedback-related negativity (FRN), learning rate and behavioral performance were recorded and analyzed. Similar to experiment 1, only the negative learning was modulated by the empathy level. When participants were induced high empathy level, the behavioral performance was better. The results of FRN showed the interaction between empathy levels and expectancy of feedback. When participant’s empathy level was low, unexpected FRN was more negative than expected FRN. This result was consistent with previous studies. Nevertheless, when participant’s empathy level was high, there was no difference between unexpected FRN and expected FRN. Although FRN didn`t show the effect of expectancy, participants could still learn the probabilities of each signs and made adaptive decisions. This result may result from other systems involved in observational learning. From the results of experiment 1 and 2, present research showed that, only in negative learning, observational learning was modulated by empathy, and the higher the empathy level was, the better the behavioral performance was.
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描述: 碩士
國立政治大學
心理學研究所
99752001
101
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