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Chances Of Brain Mechanism In The Decision-making Research

Posted on:2011-07-10Degree:MasterType:Thesis
Country:ChinaCandidate:Y HuFull Text:PDF
GTID:2205360302997302Subject:Development and educational psychology
Abstract/Summary:PDF Full Text Request
The beliefs in good luck is the one kind of psychology that people research few present.In the Western culture, beliefs in good luck is far from the Chinese culture, so we can't use West's research technique.In tests one,I use homemade "probability event-subjective probability estimating" model survey the beliefs in good luck,the conclusion shows:A), in the "widespread degree" of appearing beliefs in good luck, the event character's main effect is not remarkable,the object main effect is remarkable, the non-university student more appear beliefs in good luck than the university student.B) All the objects show a intense beliefs in good luck in "depth degree" in both two kind of event, the non-university student does not have more intense beliefs in good luck compared to the university student when they face lives event,The beliefs in good luck shows that,"the widespread degree" has a high positive relationship with "the depth degree", the negative valence event has a higher relationship than the positive valence event.Test two uses six questions which in Test one,to display the question and the option first,and then show the probability.The result shows that,in the N2,brain area main effect is remarkable,in this decision-making, the Frontal Lobe and the central region is activated first,then the parietal lobe. There is a significant interaction between event character*probability,because the condition inducing beliefs in good luck belongs to the difficult decision-making, the N2 amplitude is bigger. In the P3 350-450ms time window,there is no remarkable difference between the condition inducing beliefs in good luck and the condition non-inducing beliefs in good luck, possiblly the high memory load and the high difficulty cause the object can't classify the two kind of conditions immediately.In 450-550ms time window, the central region and the parietal lobe's P3 amplitude is obviously higher than the Frontal lobe. In the P3's 450-550ms and 550-650ms time window,the interaction between event character*probability are all remarkable, the condition inducing beliefs in good luck's P3 amplitude is lower than the condition non-inducing beliefs in good luck,this reflected that in the condition inducing beliefs in good luck,the decision-making task is harder,the object has been more careful and lower confidence,and the beliefs in good luck took more cognition resources;But in the non-condition inducing beliefs in good luck has a lower difficalty,the cognition resources takes fewer,and the object has high confidence in the decision-making.
Keywords/Search Tags:beliefs in good luck, ERP, N2, P3
PDF Full Text Request
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