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The Influence Of Emotional Information On The Inhibition Process Of Deception Reaction:Evidence From ERP

Posted on:2019-11-26Degree:MasterType:Thesis
Country:ChinaCandidate:T LiFull Text:PDF
GTID:2405330548964355Subject:Cognitive Psychology
Abstract/Summary:PDF Full Text Request
Deception reactions may be influenced by the individual's internal emotional experience and external emotional information.Emotion may be the motivation to induce deception,such as the fear of doing something wrong may be the incentive to induce deception,so that individuals commit fraud to escape punishment.Deception can bring nervous,fearful or even emotional experiences to the deceiver.The emotional experience can also affect deceptive behavior.Based on previous studies,this paper uses facial expressions as a stimulus material,combined with implicit and explicit tasks,to study the impact of emotional information on the inhibition process of deceptive responses.The experiment adopted the emotional Stroop paradigm.In the implicit emotion task,participants were asked to make gender judgments on their facial expressions.Under this task,emotions were irrelevant information.The explicit tasks required the participants to judge the type of emotions.Under this task,gender was irrelevant information.Study 1 examined the effect of emotional information on deceptive responses under multiple emotional intensities.Emotional intensity is used in five dimensions of 20%,40%,60%,80%,and 100%.There are two types of emotion types: anger and happiness.The type of restriction is therefore the use of behavioral experiments,mainly to explore whether there is a functional relationship in the deception response in the five dimensions.It was found that the processing of emotions requires attention to the regulation of resources,and that high-intensity negative emotions in the explicit tasks will facilitate the conduct of deceptive responses.These results show that under negative emotions,individuals tend to make deceptive responses as their emotional strength increases.Study 2 selected emotional intensity based on the research results obtained from Study 1,and used event-related potential research to explore the neural mechanisms that influence emotional information on deceptive responses.It was found that positive emotions in implicit tasks elicited greater P300 volatility and deception responses led to smaller N200 volatility.In the explicit task,high intensity triggered a greater P300 amplitude,high-intensity negative emotions triggered greater LPC amplitude,and deception responses led to greater N200 amplitude,P300 amplitude,and LPC amplitude.These results show that in the implicit task,the impact of emotional information on the deceptive response is mainly in the early stage,that is,the suppression stage of the execution function.In explicit tasks,the impact of emotional information on fraudulent responses runs through the three stages of execution,namely,suppression phase,conflict and response monitoring phase,and execution phase.This study finds that positive emotion information in implicit tasks has a greater impact on deceptive responses than negative ones.In explicit tasks,negative emotional information has a greater impact on deceptive responses.
Keywords/Search Tags:Deception reaction, Emotional information, N200, P300, LPC
PDF Full Text Request
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