The potential addictive mechanism involved in repetitive nonsuicidal self-injury: The roles of emotion dysregulation and impulsivity in adolescents

Non-suicidal self-injury trajectories among adolescents during the COVID-19 pandemic: The role of parenting dimensions and stress reactions

BACKGROUND

The literature on the trajectories of NSSI behavior during the pandemic is scarce and mainly short-term. Furthermore, studies have not explored the buffering mechanisms that may have altered risk trajectories during this vulnerable period. This study aims to analyze the univariate change of NSSI during adolescence and to examine the alteration of the univariate growth due to the time-varying effect of COVID-19-related stress, parenting dimensions (i.e., positive and negative parenting), and their interaction.

METHODS

Participants included 830 Italian adolescents (44.2 % females; Mage = 14.52; SD = 0.80), who participated in at least one time point of data collection, from a three-wave longitudinal study (T1: from December 2019 to January 2020; T2: December 2020; T3: December 2021).

RESULTS

The Latent Growth Curve Analyses show a linear increase in NSSI over time. In regards to time-varying, at T1, the results highlight that higher levels of negative parenting are associated with higher levels of NSSI at the same time point. Instead, at T2, results show that pandemic stress is associated with higher levels of NSSI at T2. Regarding the interaction effect, positive parenting significantly buffered the effect of COVID-19 stress on NSSI at both T2 and T3.

LIMITATIONS

Only some dimensions of parenting style (i.e., positive and negative parenting) are included.

CONCLUSIONS

This study attempts to deepen the trajectory of NSSI behavior during the two years of the pandemic and examine the changes caused by the time-varying effects, thus providing suggestions for designing programs to prevent engagement in NSSI.

Influence of stress on self-injury among Chinese left-behind adolescents is not cast in stone: Synergistic roles of family protective factors

BACKGROUND

Left-behind adolescents are vulnerable to stressful life events and often engage in nonsuicidal self-injury (NSSI), which is a growing public concern in China. However, little is known about the synergistic protective effect of family resources on the relationship between stressful life events and NSSI in these adolescents.

OBJECTIVE

Based on theories of family socialization and resilience, the aim of this study was to examine the synergistic protective role of maternal knowledge and mother-child cohesion in buffering the effect of stressful life events on NSSI in father-absent left-behind adolescents.

METHODS

This study used two-wave longitudinal data. The analytical sample included 673 adolescents (Mage = 13.47 ± 1.11 years, 48 % male) who were enlisted from 4 junior high schools in rural China. Respondents completed questionnaires on stressful life events, parental knowledge, parent-child cohesion, and NSSI at two-time points.

RESULTS

The effects of stressful life events on NSSI were significant in father-absent left-behind adolescents. Additionally, maternal knowledge moderated the associations between stressful life events and NSSI in father-absent left-behind adolescents. Moreover, maternal knowledge and mother-child cohesion were found to play synergistic protective roles in the relationship between stressful life events and NSSI. In father-absent left-behind adolescents, only high maternal knowledge and high-quality mother-child cohesion could eliminate the negative effect of stressful life events on NSSI.

CONCLUSION

The findings underscore the synergistic protective roles of maternal knowledge and mother-child cohesion in buffering the negative effect of stressful life events on NSSI in father-absent left-behind adolescents. Both maternal knowledge and mother-child cohesion should be considered in interventions aimed at reducing NSSI in these adolescents.

Correlations between non-suicidal self-injury and problematic internet use among Chinese adolescents: a systematic review and meta-analysis

Background

Non-Suicidal Self-Injury (NSSI) has continued to be a major issue for public health worldwide, especially among teenagers. Studies have found a certain correlation between NSSI and Problematic Internet Use (PIU). However, this relationship is still unclear among Chinese adolescents, a specific population. Hence, a meta-analysis was carried out on observational studies to explore the connection between NSSI and PIU in Chinese teenagers, aiming to provide more clarity on the correlation.

Methods

To identify the link between NSSI and PIU, we scoured seven digital repositories until November 16, 2023. Employing a random-effects meta-analysis framework, we delved into the association between NSSI and PIU. Additionally, we carried out subgroup evaluations to scrutinize variables including geographical location, age demographics, research methodology, diagnostic instruments, gender, and variables controlled for confounding, like symptoms of depression. For amalgamating data, STATA software (version 16) was deployed.

Results

In this analysis, we included 15 research papers encompassing a collective sample of 137,166 individuals. Our findings revealed a significant positive association between NSSI and PIU within the adolescent population in China, with an Odds Ratio (OR) of 2.02 and a 95% Confidence Interval (CI) ranging from 1.73 to 2.37. Notably, this correlation was markedly stronger in specific subgroups: adolescents from China's Western regions exhibited an OR of 4.22 (95% CI: 3.44, 5.18); middle school attendees had an OR of 2.09 (95% CI: 1.92, 2.28); those diagnosed with concurrent depression disorders showed an OR of 2.32 (95% CI: 1.98, 2.73); and female adolescents demonstrated an OR of 2.49 (95% CI: 2.26, 2.75), highlighting the nuanced dynamics of this relationship.

Conclusion

This meta-analysis indicates that PIU among adolescents is associated with an increased risk of NSSI. Our findings underscore the importance of targeting specific populations, including those in the western region of China, middle school students, adolescents with comorbid depression disorders, and female adolescents, who may be at higher risk of PIU and subsequently NSSI. These results emphasize the need for tailored interventions and preventive strategies to address these intertwined issues effectively.

Systematic review registration

PROSPERO, identifier CRD42024496579.

Investigating suicidal behavior among prisoners in the light of the behavioral addiction approach: results of a multicenter cross-sectional study

Introduction

The behavioral addiction model posits that repetitive suicidal behaviors can serve as maladaptive strategies for managing stress and negative emotional states, akin to substance addiction. Both behaviors involve negative emotions, offer temporary psychological relief, and persist, indicating shared neurobiological mechanisms. This study explored psychometric differences among major repeaters, occasional attempters, and non-suicidal prisoners.

Methods

A multi-centre cross-sectional survey of 363 inmates across four prisons assessed depression, cognitive-emotional regulation, impulsivity, perceived stress, lifetime non-suicidal self-injury and suicide attempts.

Results

Mild depression, moderate suicidal ideation, and moderate impulsivity were common, with nearly half of the participants having attempted suicide at least once. Hierarchical multiple regression analyses revealed that repeated suicidal behavior in the past increases susceptibility to future suicidal thoughts, with suicide attempts serving as a maladaptive emotion regulation strategy among repeated attempters.

Discussion

The results reveal differences in emotional dysregulation, impulsivity, and stress coping strategies among the studied groups, reinforcing the idea of suicidality as a form of behavioral addiction. The addiction approach helps explain the sensitivity to later suicidal thoughts in former attempters and self-harmers, offering valuable insights for tailored interventions within correctional settings.

Gender-Specific Trajectories of Non-Suicidal Self-Injury among Adolescents: Predictive Roles of Distal and Proximal Risk Factors

Non-suicidal self-injury (NSSI) is considered a strong risk factor for suicide. Although NSSI is prevalent among adolescents and varies by gender, few studies have examined the gender-specific trajectory of NSSI and its predictors. This study examined the trajectory of NSSI among Chinese adolescent boys and girls separately, and the roles of distal (i.e., childhood maltreatment and its specific subtypes) and proximal risk factors (i.e., emotional dysregulation, peer victimization) on their trajectories. A total of 3290 Chinese adolescents (Mage = 13.08; SD = 0.84; 57.6% boys) participated in assessments at three time points. Latent class growth models identified three trajectories for boys: Low stable (92.5%), moderate increasing (5.0%) and high decreasing (2.5%). Four trajectories were identified for girls: Low stable (87.9%), moderate increasing (7.6%), high decreasing (3.0%) and high stable (1.5%). Multinomial logistic regression analyses revealed that both emotional dysregulation and emotional abuse predicted the trajectories of moderate increasing, high decreasing and high stable for girls, as well as predicted moderate increasing and high decreasing trajectories for boys. Peer victimization served as a significant risk factor predicting the moderate increasing and high decreasing trajectories only for girls, while overall childhood maltreatment was a remarkable predictor for the moderate increasing and high decreasing trajectories of boys. The findings highlighted the importance of gender differences in understanding the progression of NSSI and the key predictors, informing effective strategies for prevention and intervention.

Specific and cumulative effects of childhood maltreatment on nonsuicidal self-injury in Chinese adolescents: The moderating effect of sleep disturbance

BACKGROUND

Numerous studies have examined the relationship between childhood maltreatment (CM) and nonsuicidal self-injury (NSSI). However, few studies have explored both the specific and cumulative effects of CM on NSSI. Additionally, the impact of sleep disturbance on the association between CM and NSSI remains unclear.

OBJECTIVES

To comprehensively explore the effects of CM on NSSI, and to determine whether these effects are moderated by sleep disturbance.

PARTICIPANTS AND SETTING

A retrospective study was conducted in April 2021 among a representative sample of 21,340 students aged 11-20 years in China.

METHODS

All participants completed questionnaires assessing CM, sleep disturbance, and NSSI. Adjusted multivariate logistic regression models were utilized to evaluate the associations between CM and NSSI, as well as the impact of sleep disturbance.

RESULTS

The findings revealed that 13.0 % of adolescents reported occasional NSSI, while 25.2 % reported repetitive NSSI. Except for sexual abuse, all subtypes of CM were significantly associated with increased odds of both occasional and repetitive NSSI. A significant dose-response relationship was observed between cumulative CM and repetitive NSSI. Stratification analyses by sleep disturbance indicated that adolescents reporting sleep disturbance had a higher risk of developing repetitive NSSI, irrespective of the type of CM experienced. Furthermore, a dose-response relationship was identified between cumulative CM and repetitive NSSI among adolescents reporting sleep disturbance.

CONCLUSION

This study demonstrated that CM increases the risk of NSSI among Chinese adolescents, and sleep disturbance plays a moderating role. Interventions targeting sleep disturbance may hold significance in reducing NSSI.

Maladaptive cognitive regulation moderates the mediating role of emotion dysregulation on the association between psychosocial factors and non-suicidal self-injury in depression

Introduction

Non-suicidal self-injury (NSSI) is highly prevalent in depression, and is associated with psychosocial factors, emotion dysregulation, and strategies of cognitive emotion regulation. However, the internal combination and interactions of these risk factors in depression remain unclear.

Methods

Data from 122 patients with depression, including 56 with NSSI and 66 without NSSI, were analyzed. Self-rating scales were used to assess psychosocial factors, emotion dysregulation, and cognitive regulation strategies. Sparse partial least squares discriminant analysis (sPLS-DA) was employed to explore internal combinations in each profile. A moderated mediation model was applied to examine their interactional relationship.

Results

The results identified an NSSI-related psychosocial profile characterized by high neuroticism, childhood trauma, poor family functioning, and low psychological resilience. Emotion dysregulation, including high levels of alexithymia, anhedonia, and emotion regulation difficulties, mediated the association between this psychosocial profile and NSSI. The mediated effect was further moderated by maladaptive cognitive regulation strategies.

Limitations

Lack of sufficient information on NSSI frequency and severity. Relatively small sample size for discussing the impact of gender and age of depressive patients with NSSI.

Conclusion

These findings hold important implications for the prevention, treatment, and rehabilitation of NSSI.

Experiencing stress impact on adolescent repetitive nonsuicidal self-injury: The Mediating role of emotion dysregulation and maladaptive cognitive schemas

BACKGROUND

Repetitive nonsuicidal self-injury (R-NSSI) is a growing concern in adolescents and is associated with various mental health problems. However, little is known about the potential psychology and addiction mechanisms of R-NSSI in adolescents. This study aimed to examine the mediating effects of emotion dysregulation and maladaptive cognitive schemas based on the Interaction of Person-Affect-Cognition-Execution (I-PACE) model and the integrated model of NSSI among adolescents who repeatedly engage in NSSI.

METHODS

This longitudinal study was conducted in two waves with 6-month lags. A total of 3925 adolescents (Mage = 13.22 ± 0.86 years, 42 % female) were recruited from three middle schools. Relevant questionnaires were used to evaluate stressful life events, emotion dysregulation, maladaptive cognitive schemas, NSSI, and NSSI addictive features. The structural equation modeling approach was conducted separately for adolescents who engaged in occasional NSSI (O-NSSI) and those who engaged in R-NSSI.

RESULTS

Results showed that emotion dysregulation played a significant mediating role in the associations between stressful life events and NSSI frequency, and both maladaptive cognitive schemas and emotion dysregulation played a significant mediating role in the associations between stressful life events and NSSI addictive features in adolescents who engaged in R-NSSI but not in those who engaged in O-NSSI.

LIMITATIONS

The main limiting factor is self-reported data.

CONCLUSIONS

These findings contribute to the understanding of the psychological and addictive mechanisms involved in R-NSSI. Both emotion dysregulation and maladaptive cognitive schemas could be a suitable therapeutic target to reduce R-NSSI in the context of stress during adolescence.

Problematic internet gaming and non-suicidal self-injury in Chinese adolescents: Moderating and mediating roles of anxiety

INTRODUCTION

Despite consistent reports of the association between problematic internet gaming (PIG) and non-suicidal self-injury (NSSI), an increase in PIG does not necessarily lead to increased NSSI. This apparent paradox indicates the presence of other mediators and moderators in the PIG-NSSI association. This study aimed to investigate the role of anxiety as a potential moderating and mediating factor of the PIG-NSSI association in Chinese adolescents.

METHODS

A cross-sectional study was conducted among 10,479 Chinese adolescents (50.5% male; age range, 9-18 years). Standardized self-report questionnaires were used to assess the severity of PIG, anxiety, and NSSI. Spearman correlation and multiple linear regression were applied to examine the relationships among PIG, anxiety, and NSSI. Both moderating and mediating effects of anxiety were assessed using Hayes' methods.

RESULTS

PIG, anxiety symptoms, and NSSI significantly correlated with one another. Anxiety significantly moderated the relationship between PIG and NSSI [B = 0.002, standard error (SE) = 0.000, p < 0.001], and it partially mediated the PIG-NSSI association [B = 0.017, SE = 0.001, 95% confidence interval (CI) 0.014-0.021]. Social concern and concentration were the two dimensions of anxiety that exerted the strongest mediation effect (B = 0.017, SE = 0.002, 95% CI 0.014-0.020).

CONCLUSIONS

Adolescents with PIG and high anxiety are likely to suffer more severe NSSI and may benefit from interventions to reduce anxiety symptoms.

Impaired behavioral inhibitory control of self-injury cues between adolescents with depression with self-injury behavior and those without during a two-choice oddball task: an event-related potential study

Background

This study aimed to objectively evaluate the severity of impulsivity [behavior inhibitory control (BIC) impairment] among adolescents with depression. In particular, those involved in non-suicidal self-injury (NSSI) behaviors, compared with those engaged in suicidal behaviors and adolescents without any self-injury behavior, using event-related potentials (ERPs) and event-related spectral perturbation (ERSP) within the two-choice oddball paradigm.

Methods

Participants with a current diagnosis of major depressive disorder (MDD) engaged in repetitive NSSI for five or more days in the past year (n = 53) or having a history of at least one prior complete suicidal behavior (n = 31) were recruited in the self-injury group. Those without self-injury behavior were recruited in the MDD group (n = 40). They completed self-report scales and a computer-based two-choice oddball paradigm during which a continuous electroencephalogram was recorded. The difference waves in P3d were derived from the deviant minus standard wave, and the target index was the difference between the two conditions. We focused on latency and amplitude, and time-frequency analyses were conducted in addition to the conventional index.

Results

Participants with self-injury, compared to those with depression but without self-injury, exhibited specific deficits in BIC impairment, showing a significantly larger amplitude. Specifically, the NSSI group showed the highest value in amplitude and theta power, and suicidal behavior showed a high value in amplitude but the lowest value in theta power. These results may potentially predict the onset of suicide following repetitive NSSI.

Conclusion

These findings contribute to substantial progress in exploring neuro-electrophysiological evidence of self-injury behaviors. Furthermore, the difference between the NSSI and suicide groups might be the direction of prediction of suicidality.

Self-Injurious Behavior and Its Characteristics in a Sample of Mexican Adolescent Students

Adolescence is a difficult stage, a period of risk for developing disorders, including depression and self-injurious behavior. A non-random sample was drawn (n = 563) from first-year high school students (32.8%) 185 males and 378 females (67.14%) from public schools in Mexico. The age range was 15 and 19 years, with a mean age of 15.63 (SD = 0.78). According to the results, the sample was divided into n1 = 414 (73.3%) adolescents without self-injury (S.I.) and n2 = 149 (26.4%) S.I. adolescents. In addition, results were obtained on methods, motives, time, and frequency of S.I., and a model was generated in which depression and first sexual experience obtained the highest Odd Ratio and d values in their relationship with S.I. Finally, we contrasted the results with earlier reports and concluded that depression is an important variable in S.I. behavior. Early S.I. detection will prevent the aggravation of S.I. and suicide attempts.