Study On Interpretive Bias And Imagery Rescripting Intervention Of Obsessive-compulsive Tendencies Individuals

Obsessive compulsive disorder(OCD)is a common,chronic and disabling psychological disorder characterized by obsessive compulsive disorder in which the individual feels compelled to perform unwanted painful obsessive thinking and repetitive compulsive behavior.Individuals with high obsessive tendencies show similar obsessive thinking or compulsive behavior to those with obsessive-compulsive disorder,but less frequently,with less intensity,and with less association with negative emotions.The selection of individuals with high obsessive-compulsive tendency can provide ideas and references for the study of the pathogenesis and treatment of obsessivecompulsive disorder.The cognitive model theory suggests that attentional bias and interpretive bias may play an important role in the maintenance and development of obsessive-compulsive disorder.At present,most studies on the cognition of obsessive-compulsive disorder focus on attention bias,and there are few studies on interpretive bias and inconsistent conclusions.Most interpretive bias paradigms only let subjects judge the threat or non-threat explanation,only report the overall interpretive bias score or only report the rating of threat explanation,and do not give independent ratings for non-threat and threat explanation.Recent studies on interpretive bias intervention for obsessive-compulsive disorder lack systematic evidence to prove the effectiveness of intervention measures and need a lot of empirical evidence.In addition,all the existing studies have adopted the interpretive bias correction task to intervene the interpretive bias of obsessive-compulsive disorder,with fixed task procedures,lack of pertinence and flexibility,and lack of application in practical treatment.While imagery rescripting can change the meaning of the mental representation of aversive stimulus memory,effectively reducing the frequency of related negative emotional responses and intrusive imagery.The learning theory of imagery rescripting believes that imagery rescripting can change the connection between threat interpretation and fuzzy information,which may reduce the threat interpretation bias of obsessive-compulsive disorder.However,no empirical studies have examined whether imagery rescripting can change the interpretive bias of obsessivecompulsive disorder.Therefore,it is of great value and significance to explore the pathological and psychological mechanism of obsessive-compulsive disorder in the study of interpretive bias.Two studies are carried out in this paper.In the first study,non-threatening and threatening interpretations were scored using the word relevance paradigm to examine the interpretive bias of individuals with high compulsion tendency.In the second study,the intervention method of imagery rescripting was used to discuss the improvement effect of imagery rescripting on the threat interpretive bias of individuals with high obsessive tendency,and to test whether the two intervention of imagery rescripting can effectively improve symptoms.In the first study,using the word association paradigm of compulsion correlation,the differences in threat interpretation and non-threat interpretation between individuals with high compulsion tendency and those with low compulsion tendency were explored by comparing the correlation scores of threat word-sentence and non-threat word-sentence respectively.The results showed that the interaction between group and word type was significant,and the correlation score of threat word-sentence was significantly higher in individuals with high compulsion tendency than in individuals with low compulsion tendency.The correlation scores of high and low obsessive predisposition to non-threat word-sentence were significantly higher than those of threat wordsentence;There was no significant difference between the two groups in the correlation scores of non-threatening words and sentences.In the second study,a randomized controlled experiment was used to randomly assign individuals with high compulsion tendency to image modification,imaginary exposure and control group for a two-week intervention and a 2-month follow-up investigation,to explore whether two times of image modification intervention can reduce the threat interpretation bias of individuals with high compulsion tendency to ambiguous sentences,and to test the effect of image modification intervention on symptoms of individuals with obsessive tendency.The results showed that after two times of image modification intervention,the threat word-sentence correlation scores of high obsessions were significantly reduced,and the non-threat word-sentence association was increased,and this effect was stable after two months,while the imaginative exposure intervention had no effect on the interpretive bias of high obsessions.The results of the intervention showed that the symptoms of high obsessive-compulsive individuals were significantly improved by the two-time imagery rescripting intervention,which was characterized by the reduction of Yale-brown obsessive-compulsive symptoms,anxiety and obsessive-compulsive beliefs.The effect of the intervention remained stable after 2 months,but the level of depression and obsessive-compulsive self-evaluation of high obsessive-prone individuals did not improve.Through study 1 and Study 2,the following conclusions are drawn:(1)Individuals with high compulsion tendency have more threat explanations than those with low compulsion tendency,and are more likely to make threat explanations to ambiguous information related to compulsion.(2)The non-threat interpretation of individuals with high compulsion tendency and individuals with low compulsion tendency is similar,and individuals with high compulsion tendency do not lack non-threat interpretation bias.(3)The two-time imagery rescripting intervention can effectively reduce the threat interpretation of individuals with high obsessive tendencies,reduce the association between threat words and ambiguous sentences,and transform into non-threat interpretation.(4)Image modification can effectively improve the obsessive-compulsive symptoms,anxiety and obsessive-compulsive beliefs of individuals with high obsessive-compulsive tendencies,and the intervention effect can be stable after 2 months.