The Research Of Trait Anger College Students’ Emotion-induced Blindness Under Reward And Punishment Tasks

Large amount of previous studies have shown that high trait anger individuals have attention bias to negative information. But most of the studies adopted emotional words to trigger emotion instead of using facial emotional images which is closer to real life, and there are few studies have a combination of observation at positive, neutral and negative emotions. Emotion-induced blindness phenomenon as a special functional blindness, it has a different experiment paradigm and mechanism with other blindness phenomena, but the research is just a start-up, especially in the domestic literature on Emotion-induced Blindness phenomenon is not common, and there are few research about how to effectively cope Emotion-induced Blindness phenomenon. In addition, the incidence of campus crime in recent years more frequently, and the level of repeat offenders’ trait anger is higher than that of no criminal record, the level of violent offenders’ trait anger is significantly higher than the non-violent offenders(?orap??o?lu & Erdo?a, 2004;Smith,Waterman & Ward, 2006), and the trait anger also predict drunken attack behavior and an important factor of suicide. Therefore, the present research took trait anger college students as the research object, designed three experiments to explore the issue. In study 1,approach the clues- target detection paradigm to investigate trait anger college students on the positive, neutral and negative emotions’ attention bias phenomenon; In Study 2,approach Emotion-induced Blindness paradigm to investigate trait anger college students’ Emotion-induced Blindness phenomenon in different time interval(200ms,400 ms,600ms,800ms) and positive, neutral and negative images. Discuss the duration time of Emotion-induced Blindness phenomenon; In Study 3, approach monetary incentive delay models to explore reinforcement and punishment tasks for high trait anger college students’ Emotion-induced Blindness phenomenon,and the time interval is 200 ms and 400 ms, interference emotion materials are negative images. Results and conclusions are as follows:(1) The results of study 1: There is no significant difference between high trait angergroup and low trait anger group in response time(p>0.05); Under various emotional cues,the observation of the Inhibition of Return( IOR) illustrate that widespread existence(p<0.05);The IOR of high trait anger group is significantly lower than low trait anger group.(2) The results of study 2: The accuracy of high trait anger group is significantly higher than low trait anger group(p<0.05);Under the different intervals, high trait anger group’s accuracy of negative images is significantly less than the low trait anger groups(p<0.05);Under the negative emotions, the accuracy of lag2 is significantly different with lag6 and lag8(p<0.01), there is no significant difference between lag6 and lag8(p>0.05).(3) The results of study 3: The accuracy of reward group and punishment group are significantly higher than control group(p<0.05); Under the condition of lag2, reward group’s accuracy is significantly higher than control group(p<0.01) and punish group(p<0.01);Under the condition of lag4, reward group’s accuracy is significantly higher than control group(p<0.01), the punishment group was also significantly higher than the control group(p<0.05), there is no significant difference between reward group and punishment group(p<0.05).The research conclusions:(1) High trait anger college students’ IOR is minimum on negative emotions, they have negative attention bias.(2)High trait anger college students have Emotion-induced Blindness phenomenon on negative information.(3)The Emotion-induced Blindness phenomenon is weaken as the extension of time interval, and disappeared in 600 ms.(4)The reward and punishment tasks both can against Emotion-induced Blindness phenomenon, but the effect of reward task is more effective than punishment task.In conclusion, this study proves that high trait anger college students have Emotion-induced Blindness phenomenon on negative information, and reward task is more effective than punishment task to against this phenomenon.