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Objective:To explore the relationship between rumination and depression and suicide attempts, and the mediating effect of rumination between depression and suicide attempts in adolescents with depressive disorder.Methods:Clinical interviews and questionnaires were conducted on 331 adolescents aged 11-18 with depressive disorders.Depressive symptoms were assessed with patient health questionnaire-9 (PHQ-9). Rumination was assessed with ruminative responses scale-10 (RRS-10), and Chinese version of the sociality module of MINI5.0 was used to assess suicide.SPSS 23.0 software was applied to descriptive statistics, Chi-square test, t-test, Spearman correlation analysis and hierarchical regression analysis, and the SPSS macro program PROCESS V 3.4 was used for Bootstrap mediating effect. Results:The incidence of suicide attempts in adolescents with depressive disorder was 53.78%, which was significantly higher in girls (59.48%) than that in boys (40.40%), and the difference was significant ( χ2=10.16, P<0.01). In contrast to the non-suicide attempt group, suicide attempt group had higher scores on PHQ-9((11.08±9.26) vs (14.43±7.49), t=-3.634, P<0.01), brooding ((10.76±3.89) vs (12.44±3.87), t=-3.926, P<0.01), reflection ((10.05±3.54) vs (11.20±3.33), t=-3.044, P<0.01) and rumination total score ((20.81±6.78) vs (23.64±6.42), t=-3.898, P<0.01). Regression analysis revealed that girl ( β=0.175, t=3.228, P=0.001), depressive symptoms ( β=0.168, t=3.082, P=0.002), rumination ( β=0.138, t=2.364, P=0.019) were risk factors for suicide attempts.Rumination played a complete mediating effect between depressive symptoms and suicide attempts (effect value=0.013, 95% CI=0.003-0.027). Depression symptoms significantly and positively predicted rumination ( P<0.01), and rumination significantly and positively predicted suicide attempts ( P<0.05). Conclusion:The incidence of suicide attempts was high in adolescents with depressive disorders.Depressive symptoms affect suicide attempts mainly through rumination.Clinicians should assess the rumination of adolescents with depressive disorders.In addition, clinicians should implement concurrent psychotherapy to adjust the cognitive response and reduce rumination, in order to improve the mental health and reduce suicide attempts.
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Objective:To explore the mediating effect of resilience between perceived stress and insomnia in medical staff.Methods:A questionnaire survey was conducted among 1 163 medical staff. All subjects were assessed with the insomnia severity index (ISI), simplified Chinese version of Connor-Davidson resilience scale (CD-RISC-10) and perceived stress scale (PSS-10). SPSS 20.0 software was used for common method biases test, descriptive statistics, difference analysis, correlation analysis, hierarchical regression analysis, and SPSS PROCESS V3.4 was used for Bootstrap mediating effect.Results:①The perceived stress (16.28±6.35) was positively correlated with insomnia (6.14±5.80)( r=0.404, P<0.01), and psychological resilience was negatively correlated with insomnia and perceived stress in medical staff ( r=-0.279, P<0.01, r=-0.399, P<0.01). ②Psychological resilience played a partial mediating role between perceived stress and insomnia in medical staff, with the mediating effect as 0.051, accounting of 13.82% of the total effect. Conclusion:Psychological resilience can reduce the negative effects of perceived stress on sleep and is a protective factor for insomnia in medical staff. Clinically, reducing perceived stress and improving psychological resilience can reduce insomnia in medical staff.
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Objective To observe the differences in event related potential(ERP) during sexual arousal elicited by different types of sexual picture in adult men.Methods An implicitly emotional task and a modified oddball paradigm were used.The differences were recorded in EEG with ERP when sexual arousal was induced by heterosexual couple erotic picture,male erotic picture and female erotic picture in fifteen health men.Results The amplitudes of N2 at Fz and P3 at Pz induced by male-female erotic picture ((2.32 ± 1.70) μV,(16.62 ± 2.16) μV),male erotic picture ((1.58 ± 1.33) μ V,(15.82 ± 1.64)μV) and female erotic picture ((1.23 ± 1.47)μV,(14.54 ± 2.00)μV)were not significant differences (P ＞ 0.05).But the amplitudes of N2 and P3 elicited by neutral human picture((-6.01 ± 1.35)μV,(11.36 ± 1.81) μV) were smaller than each type erotic picture (P ＜ 0.05).There was statistical significance in PSW at Cz elicited by different types of erotic picture.The PSW elicited by male-female erotic picture((12.59 ± 1.13)μV) was significantly higher than female erotic picture((10.38 ±0.76) μV) and male erotic picture((8.80 ±0.89) μV) (P＜0.05).However,there was no significant difference in PSW component between male erotic picture and female erotic picture.Conclusion The level of sexual arousal elicited by explicit heterosexual couple erotic pictures is highest and the attention also maintains longest in heterosexual male.
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ObjectiveTo observe female university students' differences of cognitive mechanism in processing different types of sexual picture from International Affective Picture System (IAPS).MethodsUsing event related potential (ERP),the differences of the amplitudes of N2,P3 and PSW were examined induced by the neutral pictures and different types of erotic pictures.ResultsThe amplitudes of N2 ( (0.99 ±1.69 ) μV) and P3 ( ( 17.27 ± 1.45 ) μV) elicited by heterosexual couple erotic pictures were highest,followed by the male erotic pictures( ( -0.02 ± 1.83 ) μV,( 15.92 ± 1.26 ) μV),and then were the female erotic pictures ( ( -0.22 ± 1.56)μV,( 15.49 ±1.34) μV).There was statistical significance in N2 and P3 between heterosexual couple erotic pictures and female erotic pictures ( P ＜0.05 ).There was no significant difference in PSW component between heterosexual couple erotic pictures( ( 15.22 ± 1.98 ) μV) and female erotic pictures ( ( 14.53 ± 1.75 ) μV ),but the PSW induced by male erotic pictures (( 10.93 ± 2.60 )μV) was significantly smaller than the other sexual pictures (P＜0.05).ConclusionThe level of sexual arousal elicited by explicit heterosexual couple erotic pictures is highest and also the attention maintains longest.