Background In recent years, the issue of suicide caused by the stress of a contradictory relationship between graduate students and academic supervisors has aroused heated discussion in society. Based on the interpersonal psychological theory of suicide, this study aims to examine the influence of the perceived abusive supervision on graduate students’ suicidal ideation and the parallel mediating roles of thwarted belongingness and perceived burdensomeness. Methods We conducted a cross-sectional online survey measuring perceived abusive supervision, interpersonal psychological needs and suicidal ideation among 232 Chinese graduate students. A structural equation model was constructed to test the hypothesis. Results The results showed that abusive supervision directly exacerbated suicidal ideation (β = 0.160, 95% CI = [0.038, 0.281], p = 0.009) and indirectly influenced suicidal ideation through thwarted belongingness (β = 0.059, 95% CI = [0.008, 0.110], p = 0.019) and perceived burdensomeness (β = 0.102, 95% CI = [0.013, 0.191], p = 0.018). The indirect effect accounted for 50.15% of the overall effect. Conclusions These findings enrich our understanding of the influence of supervisor–student relationship by integrating the literatures on educational and organizational behaviour, and provide practical insights for psychosocial interventions from the perspective of the interpersonal psychological theory of suicide.

An infodemic has accompanied the COVID-19 pandemic. This study explores whether overexposure to COVID-19-related information amplifies emotional distress. A cross-sectional online survey was conducted in China during the outbreak and after the peak of the pandemic (N = 1313). A latent moderated mediation model was built to analyze this relationship. COVID-19 information exposure was found to relate positively with emotional distress, and risk perception mediated the association between them. Additionally, psychological resilience moderated the mediating effects of risk perception. However, five factors of resilience differed in their moderating effects. This study offers theoretical and practical implications apropos clinical intervention and public health management.

IntroductionThe study aimed to investigate the impact and mechanism of negative life events on college students' suicidal ideation during the COVID-19 pandemic and the buffering effect of hope under the background of normalization of pandemic.MethodsA total of 5211 participants took part in this study. Self-reported negative life events, rumination, hope and suicide ideation were measured using a range of questions and scales. Our research demonstrated that the incidence of suicidal ideation among college freshmen in the past week was higher during the COVID-19 pandemic than that before the pandemic. In this study, conditional process model 15 was used to verify the hypothetical model of rumination as a potential mediator and hope as a moderator.ResultsThe hypothesized moderated mediation model was verified significant (β = -0.047, 95% CI = [-0.061, -0.035]), and hope was found to moderate the direct effect of negative life events on suicidal ideation (β = -0.039, t = -2.937, 95% CI = [-0.065, -0.013]) as well as the indirect effect of through the mediator rumination (β = -0.134, t = -10.850, 95% CI = [-0.158, -0.110]).DiscussionWe found that rumination partially mediated the effect of negative life events on suicidal ideation, and hope buffered the direct and indirect effect of negative life events on suicidal ideation. The implications of the findings for clinical interventions are discussed, including the importance of hope arousal as a protective factor and rumination as a cognitive mechanism for emotion regulation under the background of normalization of pandemic.