The Effect Of Emotional Stimulation On Cognitive Inhibition Of Trait Anxious Individuals

Studies have shown that,compared with non-emotional stimulation,emotional stimulation can cause attention bias of trait anxious individuals,which leads to insufficient inhibition.When the emotional nature of emotional words and emotional faces conflict,it is not clear whether trait anxious individuals show an attention bias to emotional stimuli,resulting in impaired cognitive inhibition.Experiment 1 adopted 2(Anxiety type: high trait anxiety,low trait anxiety)× 2(Emotion type: positive emotional stimulus,negative emotional stimulus)× 2(Conflict type: conflict,non-conflict)mixed experimental design,the emotions and conflict types are within the subject variables,and the type of anxiety is an inter subject variable,to investigate the effects of positive and negative emotional stimulation on the cognitive inhibition of high and low trait anxious individuals.The behavior results show that the accuracy of conflict conditions is lower than that of nonconflict conditions,and the reaction time is longer.Under negative emotional stimulation,the accuracy of conflict conditions was significantly lower than that in non-conflict conditions in group with high trait anxiety,and there was no significant difference in reaction time.Under positive emotional stimulation,the peek amplitude of N2 in conflict condition for group with high trait anxiety was significantly higher than that in nonconflict condition,and under negative emotional stimulation,the peek amplitude of N2 in conflict condition for group with low trait anxiety was significantly higher than that in non-conflict condition.In addition,group with high trait anxiety activated a significantly smaller P3 component in the conflict condition than in the non-conflict condition,but there was no similar finding in group with low trait anxiety.Experiment 2 adopted 2(Conflict type: conflict,non-conflict)×5(Emotion type: anger,disgust,fear,sadness,surprise)experimental design,the emotions and conflict types are within the subject variables of the subject to investigate the effect of negative emotional stimulation on cognitive inhibition of high trait anxious individuals.The behavior results showed that participants had lower accuracy in conflict conditions and longer reaction time compared with non-conflict conditions.Under the stimulation of anger,disgust,sadness and surprise,the accuracy of conflict conditions of high trait anxious individuals was significantly lower than that of non-conflict conditions,while under the stimulation of fear,there was no significant difference between conflict and non-conflict conditions.ERP results show that conflict conditions induce larger N2 and smaller P3 components than non-conflict conditions.Under fear and sadness stimulation,high trait anxious individuals induced greater N2 components in conflict conditions than in non-conflict conditions,but there was no significant difference in N2 components between conflict and non-conflict conditions under anger,disgust and surprise stimulation.The results show that positive and negative emotional stimulation have different effects on cognitive inhibition high and low trait anxious individuals.The specific manifestation is that positive emotional stimulation hinders the cognitive inhibition of low trait anxious individuals,anger,disgust and surprise in negative emotion hinder the cognitive inhibition of high trait anxious individuals,and fear emotional stimulation can promote the cognitive inhibition of people with high trait anxious individuals.