The Effect Of Prediction On Outcome Evaluation For Impulsive Trait

Impulsiveness is a personality trait,The characteristics of outcome evaluation of impulsive traits are different from their inner physiological mechanisms.However,there is some controversy about the characteristics of the outcome evaluation under the condition of whether or not there is any prediction.Based on this,the processing characteristics of the outcome evaluation are discussed.Two ERP experiments were designed,and the impulsive scale of Barratt,revised by the Beijing Psychological Crisis Research and Intervention Center,was used to filter individuals with high impulsive traits.Experiment 1 was selected the gambling task paradigm and examines the outcome evaluation of the high and low impulsive traits individuals under the conditions of no prediction,rewarding 500 gold coins,rewarding 100 gold coins,punishing 500 gold coins,and punishing 100 gold coins.Experiment 2 was adopted passive gambling task and examined high and low impulsive traits individual outcome evaluation under the predicted conditions(predicted rewards are consistent,predicted rewards are inconsistent,predicted punishment is consistent,predicted punishment is inconsistent).The results showed that experiment 1:(1)the amplitude of P300 induced by high impulsive group was significantly larger than that of low impulsive group;(2)the amplitude of P300 induced by reward was significantly larger than that of punishment,but the opposite of FRN;(3)500 gold coin induced The P300 amplitude is significantly larger than 100 gold coins;(4)For the high impulsive,the P300 amplitude caused by the reward is significantly greater than the penalty;for the low impulsive group,the difference between reward and punishment is not significant.Experiment 2:(1)For the high impulsive group,under the reward condition,there is no significant difference between the expected P200 and the predicted inconsistency.On the contrary,under the penalty condition,the prediction P200 is significantly larger than the prediction inconsistency;In terms of rewards or penalties,there is no significant difference between the predicted consistency and the predicted inconsistency;(2)the FRN and P300 induced by the high impulsive group are significantly more correct than the low impulsive group.The results suggest that,when there is no prediction:(1)impulsive trait individuals' BAS are activated in the face of reward information,the punishment of the BIS systemis suppressed,ignoring the results of evaluation,so that it is difficult to separate from the reward and then switch to the punishment information attention.To the extent that the independent separation hypothesis is verified;(2)FRN is not sensitive to intensity,but sensitive to the feedback types,it is verified that FRN should be reacted by valence,not intensity;(3)high impulsive trait individuals' the susceptibility and high approach motivation of reward information and the evasiveness and inhibition of punishment information may be used to judge clinical personality disorder from the perspective of impulsiveness.When expected:(1)After the predicted conditions,the BIS/BAS system of impulsive traits is adjusted,there is two-way sensitivity,and the joint subsystem hypothesis is verified to some extent;(2)the impulsive traits are highly approached and their cognition Insufficient efficiency,easy automatic attention capture,faster processing of consistent information;(3)impulsiveness reflects high BAS and low BIS activity,and the reduction of FRN in impulsive trait individuals may be related to the reduction of BIS activity.