The Effect Of Self-processing On Reward Processing In Addicts

In recent years,a large number of functional magnetic resonance imaging studies have demonstrated abnormalities in activation of the ventral striatum and other reward brain regions related to the natural reward processing of substance-addicted individuals.The key brain areas associated with self-processing are also damaged by long-term smoking of drugs.Researchers explored the relationship between healthy people's reward and self by combining traditional behavioral experiments with neuroscience.They found that there is a close relationship between self and reward,and they are functionally similar.They also have brain areas.Most overlap.However,few studies have shown that self-processing of healthy subjects can trigger activity in brain areas related to reward processing.However,the self-processing of addictive subjects cannot trigger corresponding activities in the brain areas related to rewards.Therefore,this study mainly examines three aspects:whether the addicted population's reward processing is abnormal,whether its self-processing is abnormal,and whether it will adjust its ability to reward processing after starting self-related processing.This regulatory effect is associated with healthy people.What is the difference?In this study,two methods of questionnaire screening and behavioral experiments were used.In the first experiment,a two-factor mixed experiment of 2(reward:high,low)× 3(between groups:long-term abstinence group,short-term abstinence group,and healthy control group)was used.It was designed to examine whether the bonus processing in the addiction group was weaker than in the healthy group.As a result,it was found that the healthy control group had a better learning effect for characters having a high probability of obtaining a high reward compared to the addiction group.In experiment two,a two-factor mixed design of 2(self-relevance:high,low)× 2(between groups:addiction group and healthy control group)was used to investigate whether the self-processing of addiction groups was abnormal.The results showed that the correct rate of the characters in the healthy control group was significantly higher than that of the self-associated group.The accuracy rate of the characters of the addicted group in association with the acquaintance was significantly higher than that of the healthy control group.The two groups of subjects may have self-referential effects after assigning characters to the meaning of self-correlation,but the self-referencing effect of the addiction group seems to be more biased toward low self-association.Experiment 3 uses a two-factor mixed design of 2(intergroup:addiction group,healthy control group)× 4(self-linked reward:high self-high reward,high self-low reward,low self-high reward,low self-low reward)Self-processing of addiction groups influences reward processing and how it affects.As a result,it was found that after linking the characters with self-relevance and reward probability,the learning and processing of the reward probability of the subjects also changed accordingly.Specifically,reward learning efficiency is superior to acquaintance-linked characters when high-probability characters with high rewards are linked to self.However,this regulatory effect was weaker in the addiction group than in the healthy group.The above experimental results show that the addicts' reward processing and self-processing are different from ordinary people,and their self-processing enhancement effects on reward processing are also different from ordinary people.This study allows us to improve and develop the relationship model of self-processing and reward processing,clarifying the relationship between self-processing and reward processing,for understanding and It is valuable to intervene in the pathological behavior of addiction and other processing abnormalities,and provide new ideas for the explanation and treatment of addiction behavior.