Effect Of The Interaction Between Physical Violence Threat And Disease Threat On Ingroup Derogation

From evolutionary reasoning,this study derived three novel hypothesis:(1)behavioral responses related to ingroup derogation;(2)behavioral responses follow the functional flexibility principle;(3)individuals act more rapidly while facing both disease and violence threat than facing only disease threat or violence threat.These hypothesis were tested and supported across two studies.Experiment 1,take the approach-avoidance response task,participants were more quickly take the reaction of identity of avoidance ingroup while approach outgroup,exist ingroup derogation,and ingroup derogation was positively associated with the perceived vulnerability to disease.As a supplement and extension of experiment 1,in experiment 2,participants were manipulated under the condition of environment threat,the results found that there also had ingroup derogation effect,and found that ingroup derogation caused by disease and violence threat was more stronger than control condition.In addition,the results also revealed that the ingroup derogation mechanism responded more strongly by participants who perceived vulnerability to disease under the control and disease condition,and under the violence condition,the interaction of avoidance motive of violence and disease determine individual’s ingroup derogation behavior in approach-avoidance task.under violence condition,for individual of high perceived vulnerability to disease,the more higher of perceived vulnerability to disease,the more higher of perceived violence threat,and the more stronger of ingroup derogationTaken together,these results suggest that ingroup derogation is related to the approach-avoidance behavioral response of threat management system,the approach-avoidance response followed the principle of functional flexibility.These results further suggest that the psychological mechanism of ingroup derogation is evolved under the threat of violence and disease,and which shaped together by violence threat and disease threat.