Objective To explore the reliability and validity of the Chinese revised version of the Intolerance of uncertainty scale(IUS).Methods A total of 930 college students completed the IUS.45 college students participated in the retest 3 weeks later.The self-rating anxiety scale (SAS) and the self-rating depression scale (SDS) were used as criterions for assessment of the validity of the Chinese revised version of IUS.Results The Chinese revised version of IUS contained 21 items.Exploratory factor analysis found a two-factor model (negative belief and emotional experience,behavioral dysfunction and negative self-reference) with a cumulative variance contribution rate of 42.09％.And the results of Confirmatory factor analysis (x 2/df =2.82,GFI =0.90,TLI =0.90,CFI =0.91,RMSEA =0.065) indicated that this model provided a reasonable good fit for Chinese college students.The Cronbach α of internal consistency reliability were good for IUS and two subscales,which were 0.929,0.885 and 0.864,respectively.The test-retest reliabilities for IUS and two subscales were 0.782,0.766 and 0.714 respectively.The IUS scores were positively correlated with the scores of SAS and SDS (r =0.489 ～0.575,P ＜ 0.001).Conclusion It suggests that the Chinese revised version of IUS has good reliability and validity,which is qualified enough for relevant research and applications for Chinese adults.

Objective:To explore the role of mindfulness and negative cognitive bias between behavioral inhibition system and social anxiety among college students.Methods:From October 12th to November 8th of 2012, a total of 747 college students from a university in Tianjin were sampled and assessed using the behavioral inhibition system scale (BIS), the mindful attention awareness scale (MAAS), the negative cognitive processing bias questionnaire (NCPBQ), and the social avoidance and distress scale (SAD). Descriptive statistics, correlation analysis, and tests for mediating effects were performed by SPSS 20.0 and Mplus 8.0.Results:The scores of behavioral inhibition system, social anxiety, mindfulness and negative cognitive bias were (15.3±2.4), (12.7±7.2), (3.4±0.8) and (45.6±11.5), respectively. The scores of BIS, NCPBQ, and SAD were positively correlated with each other ( r=0.27-0.49, all P<0.001). The scores of MAAS were negatively correlated with the scores of BIS, NCBPQ, and SAD ( r=-0.33--0.28, all P<0.001). The behavioral inhibition system exerted its influence on social anxiety through three pathways. The mediating effect size of mindfulness was 0.04, accounting for 16.0% of the total effect. The mediating effect size of negative cognitive bias was 0.17, accounting for 68.0% of the total effect. And the chain mediating effect size of mindfulness and negative cognitive bias was 0.04, accounting for 16.0% of the total effect. Conclusion:The effects of behavioral inhibition system on social anxiety in college students are individually mediated by mindfulness and negative cognitive biases, as well as their chain mediating effects.

Objective To investigate the cognition of depression and anxiety and recognition of physical and mental illness,and analyze their correlation in hospitalized elderly patients with chronic diseases. Methods A cross-sectional study was performed.A total of 206 hospitalized elderly patients with chronic diseases from a hospital were investigated using mini mental state examination (MMSE),Hamilton depression rating scale (HAMD),self rating anxiety scale (SAS)and elderly patients with chronic diseases questionnaire. Results The total scores in cognition of depression and anxiety were (5.95 ±3.05)and (4.92 ±3.20).The correct recognition rate of chronic disease was (97 ±8)%,and the correct recognition rate of mental illness was (47 ±29 )%.The recognition of mental illness was positively correlated with the total cognition score of depression and three dimensions of thinking,spirit and mood (P <0.01 ).It was also positively correlated with the total scores of cognition in anxiety and two dimensions of emotion and other symptoms (P <0.01 ). However,there was no significant correlation between recognition of mental illness and physical dimension of depression (P >0.05).There was no significant correlation between recognition of mental illness and physical dimension of anxiety (P >0.05).Conclusions The cognitive level and cognition of depression and anxiety are low in elderly patients with chronic diseases.They tend to recognize the mental illness as chronic physical disease.Therefore,nurses should make depression and anxiety evaluation as routine assessment for the elderly patients with chronic diseases.Early identification of mental illness can avoid the delay of psychological intervention and acquire the best time of treatment.

Objective:To explore the relationship between intolerance of uncertainty and internet addiction among college students, as well as the mediating roles of negative cognitive bias and difficulties in emotion regulation.Methods:In September 2022, 1 762 college students were assessed with intolerance uncertainty scale, negative cognitive process bias questionnaire, difficulties in emotion regulation scale and internet addiction test. SPSS 24.0 software was used for descriptive statistics and correlation analysis. AMOS 23.0 was used to construct a multiple mediation model, and Bootstrap method was used for mediation effects testing.Results:(1) The score of intolerance of uncertainty was 34.00 (28.00, 40.00), the score of negative cognitive bias was 42.00 (34.00, 50.00), the score of difficulties in emotion regulation was 26.00 (20.00, 32.00), and the score of internet addiction was 36.00 (28.00, 46.00). (2)The Spearman correlation analysis showed that intolerance of uncertainty, negative cognitive bias, difficulties in emotion regulation, and internet addiction were significantly positively correlated with each other ( r=0.343-0.626, P<0.01). (3) The results of the path analysis indicated that the direct effect of intolerance of uncentainty on internet addiction was not significant, and the total indirect effect was 0.402(95% CI=0.354-0.451).The indirect effect of negative cognitive bias was 0.253(95% CI=0.200-0.305), accounted for 62.94%(0.253/0.402) of the total indirect effect.The indirect effect of difficulties in emotion regulation was 0.052 (95% CI=0.033-0.076), accounted for 12.93%(0.052/0.402) of the total indirect effect.And the chain mediating effect of negative cognitive bias and difficulties in emotion regulation was 0.097(95% CI=0.068-0.131), accounted for 24.13%(0.097/0.402) of the total indirect effect. Conclusion:Intolerance of uncertainty is significantly positively correlated with internet addiction, and its effects on internet addiction are individually mediated by negative cognitive bias and difficulties in emotion regulation, as well as their chain mediating effects.