The Interaction of Person-Affect-Cognition-Execution (I-PACE) model for addictive behaviors: Update, generalization to addictive behaviors beyond internet-use disorders, and specification of the process character of addictive behaviors

Bidirectional relationship between gaming disorder, internalizing psychopathology, psychological distress, and well-being: A systematic review with meta-analysis of longitudinal studies

There is a lack of a synthesis of longitudinal studies that clarify the relationship between gaming disorder (GD) symptoms and mental health. To address this gap, we undertook a systematic review with meta-analysis of longitudinal studies. The study protocol was preregistered online on PROSPERO (CRD42023407665). We included studies analyzing the association between GD or problematic/pathological videogame use, and internalizing psychopathology (depression and anxiety), psychological distress (loneliness and stress), and well-being (life satisfaction, quality of life, and well-being). Research articles were searched in PsycInfo, PsycArticles, PubMed, and Web of Science up until December 29, 2022.30 articles were considered for meta-analysis (N = 28,782). Effect sizes (partial correlation) were pooled using random-effects models. Sensitivity analyses excluded studies rated as "poor" - using the National Institutes of Health quality assessment tool for observational cohort studies - and Chinese studies. The associations between GD and subsequent depression, emotional mixed symptoms (i.e., a combination of internalizing symptoms) and life satisfaction were statistically significant. GD was not associated with subsequent anxiety. On the other hand, depression, anxiety, emotional mixed symptoms, life satisfaction and loneliness were significantly associated with subsequent GD. Overall, sensitivity analyses supported the robustness of the main results. In conclusion, this study found reciprocal longitudinal associations between GD and depression, life satisfaction, and emotional mixed symptoms, an effect of anxiety on GD (but not the inverse), and of loneliness on GD. However, the causal nature and practical relevance remain uncertain because effect sizes were small - or medium, depending on effect size guidelines - and based on observational studies.

Unraveling the core symptoms across distinct trajectories of problematic Internet use among 27,577 adolescents: Cross-lagged panel network analyses

Problematic Internet Use (PIU) often begins in adolescence and develops along diverse trajectories. Understanding the interaction between PIU symptoms and identifying the core PIU symptoms that drive distinct trajectories among adolescents are crucial. We employed cross-lagged panel network analyses to examine temporal relationships of PIU symptoms among Chinese adolescents across four developmental trajectories over two time points. A total of 27,577 adolescents (Mean age = 13.8, SD = 1.5) participated in this study. Demographic variables and PIU symptoms were collected from December 17 to 26, 2021 (T1) and from May 17 to June 5, 2022 (T2). The symptom "Reluctant to stop" in the resilient group and "Uncontrollable checking" in the alleviating group at T1 were most predictive of remission of other symptoms at T2, while "Empty life" in the deteriorating group and "Feeling of missing" in the persistent dysfunction group were most strongly associated with worsening of other PIU symptoms. Improving self-control is likely to promote healthy and beneficial Internet use among adolescents, while enhancing social connection and fostering exercise habits may help mitigate negative emotions and reduce the emergence of additional PIU symptoms among adolescents who have developed PIU.

Does desire thinking mediate the influence of in-group identity as an Instagram user on components of problematic Instagram use?

Desire-based thinking is associated with the magnitude and severity of problematic social media use. One's ingroup identity has also been shown to be related to problematic behaviour including excessive social media use. Recent work showed that different factors predicted either compulsivity or withdrawal-based aspects of problematic Instagram. For compulsivity symptoms, negative metacognitions and the verbal perseveration component of desire thinking (i.e., persistent repetition of self-talk about the need to achieve a desired goal) were essential. In contrast, for withdrawal symptoms identity centrality (and no other dimensions of identity) and imaginal prefiguration (i.e., thoughts related to the mental images of a desired target or of its context for consumption) were the only predictors. The current study extended this work by testing whether the direct effects of components of ingroup identity as an Instagram user (N = 200) on increasing problematic use was also accounted for indirectly as a function of increasing desire-based thoughts as an active mediator, and whether these effects differed as a function of desire thinking component (i.e., imaginal prefiguration and verbal perseveration). Results showed that for overall problematic Instagram use desire thinking and the imaginal prefiguration component were found to fully mediate the influence of one ingroup self-investment aspect of identity, namely centrality i.e., chronicity of being an Instagram ingroup member for one's experienced identity. Total desire thinking was also shown to fully mediate the effects of identity centrality only for that component of problematic Instagram use that reflected compulsivity-type symptoms and to be a partial mediator for withdrawal-type symptoms. Imaginal prefiguration and verbal perseveration desire thinking components were both shown to partially mediate the effect of identity centrality on withdrawal symptoms but not show any mediating influence for compulsivity. These results reemphasise the primary significance of identity centrality (and ingroup self-investment processes) in accounting for variability in problematic Instagram use but also detail the importance of desire thinking factors as mediating its expression.

Transformative Effects of Mindfulness Meditation Training on the Dynamic Reconfiguration of Executive and Default Mode Networks in Internet Gaming Disorder

Background

Internet gaming disorder (IGD) is a pervasive global mental health issue, and finding effective treatments for the disorder has been challenging. Mindfulness meditation (MM), recognized for its holistic approach that involves integrating mental and physical facets, holds promise for addressing the multifaceted nature of addiction. Nevertheless, the effect of MM on IGD and its associated neural networks, particularly in terms of their dynamic characteristics, remains elusive.

Methods

A total of 61 eligible participants with IGD (30 in the MM group, 31 in the progressive muscle relaxation [PMR] group) completed the experimental protocol, which involved pretest, an 8-session MM/PMR training regimen, and posttests. The 142 brain regions of interest were categorized into 5 brain networks using dynamic network reconfiguration analysis based on Shen's functional template. A comparative analysis of network dynamic features, including recruitment and integration coefficients, was performed across different groups and tests using resting-state functional magnetic resonance imaging data.

Results

While clinically nonspecific effects were observed in the PMR group, the MM group exhibited a significant reduction in addiction severity and cravings. In the dynamic brain network, MM training increased the recruitment coefficient within the frontoparietal network (FPN) and basal ganglia network (BGN) but decreased it within the default mode network (DMN). Furthermore, MM training increased the integration coefficient in the FPN-DMN and DMN-limbic network (LN).

Conclusions

MM has demonstrated pronounced efficacy in treating IGD. MM may enhance top-down control functions, cognitive and emotional functions, and reward-system processing, potentially through the reconfiguration of the FPN-DMN pathway, DMN-LN pathway, and BGN.

Worry and fear of missing out are associated with problematic smartphone and social media use severity

In the present study we aimed to investigate whether worry or FOMO would be the more robust correlate of problematic smartphone use (PSU) and problematic social media use (PSMU) severity. We analyzed self-report data from a cross-sectional study of 456 American college students, administered measures of worry, fear of missing out (FOMO), PSU and PSMU. Using structural equation modeling analyses controlling for age and sex, we found that worry and FOMO were both significantly related to greater PSU and PSMU severity; these relationships were stronger for FOMO than worry. Furthermore, FOMO mediated relations between worry with both PSU and PSMU severity. Results are discussed in relation to the I-PACE theoretical model of Internet use disorders, explaining how cognitive and affective response variables may be mechanisms driving relations between psychopathology and problematic Internet use.

Internet gaming disorder predicts the incidence, persistence, and worsening of suicidal ideation: A population-based cohort study of 96,158 Chinese adolescents

INTRODUCTION

While cross-sectional studies suggest a strong association between internet gaming disorder (IGD) and suicidal ideation, longitudinal evidence is limited. This two-wave longitudinal study investigated whether IGD predicts the one-year incidence, persistence, and worsening of suicidal ideation.

METHODS

A total of 96,158 Chinese adolescents were assessed in November 2022 and one year later. IGD was measured using the 9-item Internet Gaming Disorder Scale-Short Form (IGDS9-SF), categorizing participants as non-gamers, gamers without IGD, and gamers with IGD. Suicidal ideation and their severity were evaluated using the ninth item of the 9-item Patient Health Questionnaire. Baseline demographics, lifestyle factors, and internalizing and externalizing problems were collected and controlled. Multiple logistic regression models examined associations between IGD and incident, persistent, and worsening suicidal ideation, with subgroup and sensitivity analyses performed.

RESULTS

The prevalence of baseline suicidal ideation was 21.4 %, including 17.5 % mild, 2.5 % moderate, and 1.3 % severe. The one-year incidence and persistence rates of suicidal ideation were 13.8 % and 50.1 %, respectively. Among 19,254 adolescents with mild or moderate suicidal ideation, 1656 reported worsening over the year. Compared to non-gamers, gamers with IGD had a higher risk of incident (adjusted odds ratio [AOR], 1.95; 95 % CI, 1.57-2.42), persistent (AOR, 1.56; 95 % CI, 1.34-1.82), and worsening suicidal ideation (AOR, 1.75; 95 % CI, 1.37-2.23) (all p < 0.001).

CONCLUSIONS

IGD contributes to the development, persistence, and worsening of suicidal ideation among Chinese adolescents. Targeted interventions addressing IGD may reduce suicidal ideation in this population.

LIMITATIONS

Self-reported data potentially introduced bias.

Understanding the interplay between video game design features and dysregulated gaming patterns: A call to anchor future research directions in interactionist frameworks

•Research on video game design and dysregulated gaming needs further development.•Research directions must shift from linear causal approaches to interactionist ones.•Relevant research directions, with examples of suitable study designs, are proposed.

Protective and risk factors in problematic mobile phone use among adolescents: A three-wave longitude study

Adolescents' problematic mobile phone use (PMPU) has become increasingly severe. This study examined the changes in relationships between dimensions of PMPU, protective (positive psychological capital, i.e., optimism, hope, resilience, core self-evaluation) and risk (psychological distress, i.e., anxiety, depression, loneliness, and stress) factors within the network, aiming to identify the most influential factors over time and find the longitudinal predictive relationships between the factors and PMPU. A total of 1,170 Chinese adolescents participated over three waves (T1: January 2023, T2: August 2023, T3: February 2024). Cross-section network analysis showed that "core self-evaluation", "depression", "hope", "loss of control", and "stress_P" were the central nodes. "Stress_N" (sense of losing control and negative affective reactions) in risk factors and "affect control" (ability to regulate emotions) in protective factors were the bridge symptoms in the network across three timepoints. As shown in network comparison, the global strength of the network remained stable from T1 to T2 but increased from T2 to T3. The edge strength between "family support", "anxiety" and the nodes of PMPU weakened across the time. While, correlations between "loneliness", "goal planning", "positive thinking", "affect control" and PMPU nodes strengthened. The relationship between "Stress_N" and PMPU initially increasing before decreasing. Longitudinal cross-lagged network analysis revealed that "negative life consequence" and "craving" in PMPU strongly predicted protective/risk factors, while "hope," "affect control," and "core self-evaluation" were most susceptible to prediction. The findings highlight the significant role of "core self-evaluation" and "stress_N" in the development of adolescents' PMPU and the negative results of PMPU. Additionally, the changes in the network over time suggest that the factors influencing PMPU evolve, with various protective/risk factors gaining or losing significance at different stages. The results of CLPN emphasize the negative outcome of PMPU. Therefore, targeting interventions on the internalized symptoms may help alleviate the severity of PMPU among adolescents.

Self-discontinuity in behavioral addictions: A psychodynamic framework

Models based on substance use criteria have been employed to classify maladaptive engagement in various everyday activities as genuine addictions. However, symptom-based models have potential limitations, which includes in some cases reduced clinical utility and an increased risk of diagnostic inflation. The current article presents an alternative psychodynamic theoretical framework to elucidate the psychological processes underlying the development of putative behavioral addictions. According to this framework, behavioral addictions are conceptualized as strategies for regulating overwhelming feelings rooted in childhood trauma. Exposure to childhood trauma may lead to the segregation of unbearable trauma-related mental states from awareness through persistent dissociative processes. Thus, behavioral addictions may provide individuals with an illusory sense of control over unbearable feelings while simultaneously reinforcing the segregation of trauma-related mental states. The compulsive engagement in such activities can be seen as an attempt at self-medication, though it ultimately exacerbates discontinuities in self-experience. This theoretical framework is further illustrated through a clinical vignette, highlighting its implications for both assessment and treatment.

Psychological risk factors for problematic social network use: An overview of systematic reviews and meta-analyses

Problematic Social Network Use (PSNU) is a widespread and harmful public health issue. Therefore, it is unsurprising that the literature has focused on identifying possible risk factors contributing to this behavior. However, most identified factors were found to be shared with other problematic online behaviors. Therefore, the present overview aims to identify the psychological risk factors consistently associated with PSNU and evaluate whether the emerging risk factors were shared across Internet Gaming Disorder, Problematic Pornography Use, and Compulsive Online Shopping. A systematic search of four databases was conducted to identify systematic reviews/meta-analyses investigating the relationship between PSNU and psychological risk factors. Then, a bibliometric analysis was performed to examine whether the identified factors were shared across other problematic online behaviors. Thirty-five systematic reviews/meta-analyses were included, examining general and behavior-specific predisposing factors. General predisposing factors associated with PSNU included insecure attachment, high neuroticism, low conscientiousness, low self-esteem, depression, anxiety, stress, social anxiety, loneliness, and fear of missing out. Behavior-specific factors, though less frequently studied, highlighted the role of unmet psychological needs, Preference for Online Social Interaction, and motives related to emotion regulation and socialization. The bibliometric analysis revealed that many risk factors for PSNSU are shared with other problematic online behaviors. However, certain specificities emerged, including distinct motivations driving these behaviors. Findings suggest that PSNU shares a spectrum of risk factors with other problematic online behaviors, yet specific etiological and motivational differences remain. Overall, the findings underscore integrating shared and specific risk factors to improve tailored prevention and intervention strategies.

Childhood psychological maltreatment and addictive social media use in Chinese adolescents: A path model of sense of control and negative affect as mediators

BACKGROUND

Addictive social media use (SMU) is a global concern, especially among adolescents. Recent studies have suggested that childhood psychological maltreatment may contribute to the development of addictive SMU. However, this association and its underlying mechanisms require further exploration.

OBJECTIVE

Guided by compensatory control theory and compensatory Internet-use theory, this study investigates whether and how adolescents' addictive use of social media is influenced by childhood psychological maltreatment. Specifically, we examined two factors related to childhood psychological maltreatment-sense of control and negative affect (measured by depression and anxiety individually)-as potential mediators.

METHODS

In a cross-sectional design, 994 adolescents (aged 13-16, with a mean age of 14.37 years, SD = 0.66, 44 % girls) from one middle school in China completed a pencil-and-paper survey assessing childhood psychological maltreatment, sense of control, depression, anxiety, and addictive SMU. A structural equation model was used to test the hypotheses.

RESULTS

After controlling for sociodemographic characteristics (e.g., gender, age, and only child), the results indicated that childhood psychological maltreatment indirectly affects addictive SMU via the independent mediating effects of depression and anxiety, as well as the sequential mediating effects of the sense of control and depression and the sense of control and anxiety.

CONCLUSIONS

The findings revealed compensation mechanisms underlying the relationship between childhood psychological maltreatment and adolescents' addictive SMU, which highlights alleviating negative affect (depression, anxiety) may play a more critical role in the development of addictive SMU.

Toward the classification of social media use disorder: Clinical characterization and proposed diagnostic criteria

Empirical studies and theoretical models highlight that problematic use of social media can lead to significant functional impairments in several domains, such as social, relational, occupational, and psychological functioning, as well as physical health. However, social media use disorder is not currently recognized as an official disorder in major diagnostic systems, limiting comparability among studies, precise prevalence estimation, and ad-hoc preventive and treatment program development. The present work aims to classify social media use disorder as a pathological condition sharing main mechanisms and maladaptive patterns with addictive behaviors. We discuss diagnostic criteria for social media use disorder by integrating peculiar features of this maladaptive behavior with criteria for substance use disorders and behavioral addictions from major diagnostic systems (i.e., DSM-5 and ICD-11). Moreover, we address some controversies related to the classification of social media use disorder as a behavioral addiction and highlight literature findings indicating social media use disorder shares main alterations in mechanisms and processes characterizing addiction (i.e., maladaptive activation of reward systems and impairment of inhibitory control mechanisms). Despite the lack of studies including clinical populations and the need for future research to validate the proposed criteria and refine knowledge of the mechanisms underlying this condition, our work provides a structured framework for classifying and identifying social media use disorder.

Loneliness moderates the predictive effect of the trait-state FoMO pathway on problematic social media use

Fear of missing out (FoMO) and loneliness have been identified as significant contributors to problematic social media use (PSMU). However, no prior research has examined the interplay between trait FoMO, state FoMO, the moderating role of loneliness, and their combined influence on PSMU within a unified model. The present study addressed this gap by testing a moderated-mediation model to investigate how trait FoMO, state FoMO, and loneliness jointly impact PSMU. A cross-sectional online survey was conducted with 356 participants (55.6 % female; M age = 21.7 years, SDage  = 3.55) who completed the Trait-FoMO Scale, State-FoMO Scale, UCLA Loneliness Scale (Short Version), and the Bergen Social Media Addiction Scale. The results showed that females scored higher for PSMU than males, while age had no significant effect. Moderated-mediation analyses indicated that both trait-FoMO and state-FoMO were positively associated with PSMU. Moreover, state-FoMO partially mediated the relationship between trait-FoMO and PSMU, with loneliness moderating this pathway. More specifically, the association between trait-FoMO and state-FoMO was weaker at higher levels of loneliness but stronger when loneliness levels were low. These findings highlight FoMO as a major risk factor for PSMU, as well as emphasizing the importance of addressing loneliness in prevention and intervention efforts. This integrated model provides valuable insights for designing targeted strategies to mitigate the adverse effects of FoMO and loneliness on social media use.

Mental imagery in the context of online compulsive buying-shopping disorder: The role of pleasure and relief

Background

The rise of e-commerce has led to an increase in online compulsive buying-shopping disorder (OCBSD), an addictive disorder potentially driven by preoccupations like mental imagery, yet their occurrence and predictors have not been thoroughly explored.

Methods

This study investigated the expression of and associations with mental imagery in women with pathological (n = 56) or non-problematic buying-shopping (n = 56) applying hierarchical regression analyses. Participants were classified based on a structured diagnostic interview, completed self-report questionnaires assessing experiences of gratification and compensation during shopping, and a 14-day end-of-day ambulatory assessment, evaluating mental imagery intensity.

Results

Women with pathological buying-shopping reported significantly more intense shopping-specific mental imagery compared to women with non-problematic buying-shopping. Mental imagery was significantly predicted only by compensatory experiences in the pathological buying-shopping group with medium effect sizes.

Discussion

The findings suggest that in OCBSD, mental images likely arise from to the anticipated effects of relief, possibly indicating a maladaptive coping strategy.

Network analysis of adverse childhood experiences and problematic internet use among Chinese adolescents

BACKGROUND

The association between adverse childhood experiences (ACEs) and problematic internet use (PIU) in adolescents has received increasing attention. However, item-level associations between ACEs and PIU remained underexplored. This study utilized network analysis to explore these complex interactions and enhance understanding of the linking pathways.

METHODS

From November to December 2021, 6685 Chinese adolescents aged 11-20 self-reported their internet use through the Young Diagnostic Questionnaire (YDQ). ACEs were assessed via the Childhood Trauma Questionnaire-Short Form and the Adverse Childhood Experiences-International Questionnaire. An ACE-PIU network was constructed based on the Ising model, with centrality and bridge centrality indices calculated. Network stability and accuracy were assessed using a case-dropping bootstrap procedure. The Network Comparison Test was applied to examine gender and age differences.

RESULTS

Among participants, 52.2 % were boys and the mean age was 14.5 years. Network analysis identified PIU2 ("need for increased online time"), PIU5 ("staying online longer than intended"), and PIU6 ("risking significant relationships/opportunities due to internet use") as central nodes in the ACE-PIU network model. Additionally, ACE6 ("household mental illness") and ACE2 ("emotional abuse") within the ACE cluster, along with PIU8 ("using the internet to escape problems") and PIU7 ("lying about internet use") within the PIU cluster, emerged as bridge nodes linking the ACE and PIU clusters. No significant differences in network structures or global strengths were observed across gender or age groups.

CONCLUSION

The identification of central and bridge nodes within the ACE-PIU network provides insights regarding the potential pathways linking ACEs to PIU among Chinese adolescents.

A Mixture Modeling of the Behavioral Activation System and Problematic Internet Use in Adolescents: The Role of Metacognition, Online Dissociation, and Insomnia

Due to the rapidly developing technological advancements, the overuse of the Internet has led to the emergence of problematic Internet use, which has become a part of our daily lives. This study aims to investigate the relationships between problematic Internet use, Behavioral Activation System (BAS), metacognition, online dissociative experiences, and insomnia. Participants were 341 Turkish adolescents aged between 15 and 19 years (Mean = 15.49, SD = 1.03), of whom 63% were female. Participants responded to the Behavioral Inhibition/Behavioral Activation System Scale, Metacognition Questionnaire, Van Online Dissociative Experiences Schedule, Insomnia Severity Index, and Chen Internet Addiction Scale. The mixture structural equation modeling approach was used to analyze the data. We found a positive relationship between BAS and metacognition, as well as insomnia, and a negative relationship with online dissociation. Furthermore, BAS was indirectly related to problematic Internet use via metacognition, online dissociation, and insomnia. The mixture analysis grouped participants into two latent classes. The first class (76%) had low levels of metacognition, online dissociation, insomnia, and problematic Internet use and high levels of behavioral activation while the second class (24%) had low levels of behavioral activation and high levels of metacognition, online dissociation, insomnia, and problematic Internet use. These findings indicate that individuals with high impulsivity, a tendency toward fun-seeking, and reward sensitivity are predisposed to excessively use the Internet and that metacognition, online dissociative experiences, and insomnia play a determining role in this behavior.

Self-Control Abilities in Specific Types of Problematic Usage of the Internet: Findings From Clinically Validated Samples With Neurocognitive Tasks

OBJECTIVE

Reduced cognitive functions are commonly associated with diminished self-control abilities. Research on cognitive functions in gaming disorder and other specific types of problematic usage of the Internet (PUI) remains rare. The aim of this study was to compare performance in different cognitive domains between clinically validated groups of individuals with and without specific PUI.

METHODS

The data, from a large-scale multicenter study in Germany, were collected between October 2021 and August 2024. The study compared three groups: Internet users with pathological use (N=284), risky use (N=305), and nonproblematic use (N=424). Grouping was based on structured interviews for four types of specific PUI (gaming, buying-shopping, pornography use, social network use). All participants underwent extensive laboratory testing, including self-report scales and standard cognitive tasks: Modified Card Sorting Test, Stroop test, a logical reasoning test, Game of Dice Task, a delay discounting task, and a go/no-go task with Internet-related stimuli.

RESULTS

The groups differed significantly regarding both behavioral (partial eta2 ≤0.06) and self-report measures (partial eta2 ≤0.14) of self-control abilities. The group with pathological use showed the weakest mean performance in all tasks. The groups with risky and nonproblematic use barely differed in behavioral measures but did differ in self-reported self-directedness and attentional impulsivity. Post hoc analyses revealed significant (interaction) effects of PUI type.

CONCLUSIONS

PUI is associated with deficits in general executive functions, decision making, and stimulus-specific inhibitory control that may evolve in later stages of addiction development. Potential PUI-specific differences should be considered when designing trainings and interventions that target improving self-control abilities.

Longitudinal Network Associations Between Symptoms of Problematic Gaming and Generalized and Social Anxiety Among Adolescents

Problematic gaming has emerged as a significant problem among adolescents today, yet there is still an ongoing debate over the validity and relevance of its diagnostic criteria. Some critical steps have been recommended, including examining the structure of problematic gaming and exploring its comorbidity with generalized and social anxiety. To address these research aims, this study used network analysis, both cross-sectionally and longitudinally, to identify the most central symptoms of problematic gaming and elucidate the mechanisms underlying its co-occurrence with generalized and social anxiety in adolescents. A sample of 1893 Chinese adolescents (52.85% boys, 47.15% girls; Mage = 15.42 years, SD = 0.52) participated in a two-wave longitudinal study with a 12-month interval. The findings showed that giving up other activities, loss of control, tolerance, and continuation were the most central problematic gaming symptoms for both waves, as revealed by cross-sectional analyses. Moreover, the social anxiety symptom of social avoidance and distress-general was the most prominent in bridging different constructs across cross-sectional and longitudinal networks. The longitudinal findings further revealed that the generalized anxiety symptom of restlessness was closely connected to problematic gaming symptoms, indicating its influential role as a harmful mechanism underlying problematic gaming. Our results underscore the necessity to reconsider the criteria of problematic gaming. In addition, the symptoms of social avoidance and distress-general and restlessness can be prioritized as targets for preventing and treating problematic gaming in adolescents.

Impulsivity and problematic social network sites use: A meta-analysis

INTRODUCTION

Problematic Social Network Sites Use (PSNSU) has been defined as the inability to self-regulate one's use of social networks that adversely affects the user's interpersonal relationships, work or academic activities, and psychological well-being. Among PSNSU risk factors, impulsivity has gained attention. Evidence has emerged about the importance of considering impulsivity from a multidimensional approach since specific dimensions of impulsivity were found to be involved in specific addictive behaviors. Therefore, the present meta-analysis aims to examine the association between PSNSU and (i) general impulsivity and (ii) specific dimensions of impulsivity.

METHOD

A keyword-based systematic literature search was performed for eligible studies in which impulsivity and PSNSU were assessed. The meta-analysis was conducted following the most updated PRISMA guidelines.

RESULTS

Forty-one studies were included in the quantitative analysis with 43 independent samples. Meta-analytic results of the random effects model showed a significant positive correlation between general impulsivity and PSNSU (Fisher's Z = 0.29; CI 0.24, 0.35; Z = 10.66). Concerning dimensions of impulsivity, meta-analytic results of the random effects model revealed a significant positive correlation between PSNSU and lack of premeditation (Fisher's Z = 0.11 CI 0.09, 0.13; Z = 13.25) and between PSNSU and lack of perseverance (Fisher's Z = 0.19; CI 0.17, 0.20; Z = 22.67). Significant positive correlations between PSNSU and attentional impulsivity (Fisher's Z = 0.18; CI 0.12, 0.23; Z = 6.29), non-planning impulsivity (Fisher's Z = 0.10; CI 0.02, 0.19; Z = 2.35), and motor impulsivity (Fisher's Z = 0.22; CI 0.16, 0.27; Z = 7.45) were also found.

DISCUSSION

These results confirmed that PSNSU is positively associated with impulsivity and helped to clarify which specific dimensions of impulsivity are involved in this association.

Exploring the mediating role of insomnia on the nexus between social media addiction and mental health among university students

The issue of social media addiction among university students is very severe. Identifying possible risk factors for social media addiction is crucial. The objective of this research was to analyze the association between social media addiction and mental health issues, such as depressive symptoms, among university students and to explore the potential mediation effect of insomnia on this association. The cross-sectional research from October to November 2024 recruited 727 students (486 male and 241 female) from three comprehensive universities in Saudi Arabia. Statistical analyses, including descriptive statistics, correlation, regression, and mediation analyses, were conducted using Analysis of Moment Structures (AMOS) version 25.0 and the Statistical Package for the Social Sciences (SPSS). The present research identified favorable associations between social media addiction and mental health issues, such as depression symptoms, among Saudi university students. It was also found that insomnia played a mediating role in the relationship between social media addiction and mental health. Our findings underscore the essential need for prevention and early detection of social media addiction in university students, particularly those who have insomnia.

Profiling gamers: The role of mental health, attachment and social factors in gaming behaviors

BACKGROUND AND AIMS

This study examines the association of mental health, social and relational contexts, and gaming-related characteristics on the psychological profiles of video game players based on emotional regulation and motivations for gaming.

METHODS

A multinomial logistic regression analysis was conducted on an international sample of 5.255 gamers aged 16 to 69 (M = 25.6 years, SD = 6.46). Participants included 49.87 % men (M = 26.4, SD = 7.06), 43.24 % women (M = 25.1, SD = 5.77), and 9.29 % non-binary individuals (M = 23.3, SD = 5.24) from 112 countries. Mental health, attachment styles, social interactions, and gaming behaviors were analyzed into four profiles: avoidant, engaged, relational, and dysregulated.

RESULTS

The avoidant profile, linked to older gamers, exhibited low distress, secure attachment, and offline social preferences, reflecting healthier habits. The engaged profile, the largest group, showed secure attachment and active integration of gaming into social contexts. The relational profile presented insecure attachment and emotional regulation difficulties. The dysregulated profile, associated with younger gamers, was characterized by high distress, emotional dysregulation, substance use, and a preference for online interactions.

CONCLUSIONS

The profiles dysregulated and relational are associated with insecure attachment and mental health difficulties, whereas the profiles engaged and avoidant are associated with secure attachment and low levels of psychological distress. These findings underscore the complex interplay of psychological, social, and gaming-related factors associated with gaming profiles, offering insights for further study on harm prevention and promoting non-problematic gaming behaviors.

The effect of social suspicion on social media addiction among Chinese college students: A moderated mediation model

OBJECTIVE

This study investigates the impact of social suspicion on social media addiction among Chinese college students, examining the mediating role of the sense of meaning in life and the moderating effect of gender.

METHODS

A cross-sectional survey was conducted from September 19, 2023, to November 2, 2023, involving 1,558 students from three universities in southern Anhui Province, China. Participants completed questionnaires assessing social suspicion, social media addiction, and the sense of meaning in life. Data were analyzed using correlation analysis, Hayes' PROCESS macro, and bootstrap methods to test mediation and moderation effects.

RESULTS

The findings revealed a bidirectional relationship between social suspicion and social media addiction. Social suspicion positively predicted social media addiction, with the sense of meaning in life mediating this relationship. Gender moderated the mediating effect, as the indirect effect of social suspicion on social media addiction through the sense of meaning in life was significantly stronger among female students compared to male students. Additionally, social media addiction also positively predicted social suspicion, with the sense of meaning in life and gender moderating this relationship.

CONCLUSION

This study reveals a bidirectional relationship between social suspicion and social media addiction among Chinese college students, mediated by a sense of meaning in life and moderated by gender. Social suspicion directly drives addiction while indirectly exacerbating it through reduced the sense of meaning in life, with females showing stronger mediation effects and males exhibiting heightened susceptibility to suspicion when addicted. These findings emphasize the need for gender-tailored interventions to address psychological vulnerabilities and mitigate risks of digital overuse.

Cognitive Dysfunction in the Addictions (CDiA): protocol for a neuron-to-neighbourhood collaborative research program

Substance use disorders (SUDs), including Alcohol Use Disorder, are pressing global public health problems. Executive functions (EFs) are prominently featured in mechanistic models of addiction. However, significant gaps remain in our understanding of EFs in SUDs, including the dimensional relationships of EFs to underlying neural circuits, molecular biomarkers, disorder heterogeneity, and functional ability. Transforming health outcomes for people with SUDs requires an integration of clinical, biomedical, preclinical, and health services research. Through such interdisciplinary research, we can develop policies and interventions that align with biopsychosocial models of addiction, addressing the complex cognitive concerns of people with SUDs in a more holistic and effective way. Here, we introduce the design and procedures underlying Cognitive Dysfunction in the Addictions (CDiA), an integrative research program, which aims to fill these knowledge gaps and facilitate research discoveries to enhance treatments for people living with SUDs. The CDiA Program comprises seven interdisciplinary projects that aim to evaluate the central thesis that EF has a crucial role in functional outcomes in SUDs. The projects draw on a diverse sample of adults aged 18-60 (target N=400) seeking treatment for SUD, who are followed over one year to identify specific EF domains most associated with improved functioning. Projects 1-3 investigate SUD symptoms, brain circuits, and blood biomarkers and their associations with key EF domains (inhibition, working memory, and set-shifting) and functional outcomes (disability, quality of life). Projects 4 and 5 evaluate interventions for SUDs and their impacts on EF: a clinical trial of repetitive transcranial magnetic stimulation and a preclinical study of potential new pharmacological treatments in rodents. Project 6 links EF to healthcare utilization and is supplemented with a qualitative investigation of EF-related barriers to treatment engagement. Project 7 uses whole-person modeling to integrate the multi-modal data generated across projects, applying clustering and deep learning methods to identify patient subtypes and drive future cross-disciplinary initiatives. The CDiA Program will bring scientific domains together to uncover novel ways in which EFs are linked to SUD severity and functional recovery, and facilitate future discoveries to improve health outcomes in individuals living with SUDs.

Cross-lagged analysis of mobile phone addiction and bedtime procrastination: a comparison of gender and perceived stress levels among Chinese college students

Purpose

This study aims to investigate the longitudinal relationship between Mobile Phone Addiction (MPA) and Bedtime Procrastination (BP) and to analyze differences across various gender and stress level groups, providing a theoretical basis and practical guidance for the development of relevant intervention strategies.

Methods

A longitudinal research design was employed, conducting two surveys among 1,423 first-year to junior college students at a university in Wenzhou, Zhejiang Province, in November 2021 and May 2022. Measurements were taken using the Mobile Phone Addiction Scale, Bedtime Procrastination Scale, and Depression Anxiety Stress Scale-21 (DASS-21). Data were analyzed using SPSS 26.0 and AMOS 24.0, employing methods such as descriptive statistics, correlation analysis, repeated measures variance analysis, and structural equation modeling.

Results

The study found that both MPA and BP are on the rise among college students and share a bidirectional longitudinal relationship. Under low-stress conditions, MPA significantly predicted subsequent BP, while under high-stress, BP significantly predicted subsequent MPA. Additionally, gender-specific analyses revealed that MPA significantly predicted subsequent BP in both male and female students, but BP only significantly predicted subsequent MPA in female students.

Conclusion

MPA and BP mutually influence each other among college students, with this relationship being moderated by stress levels and gender. Personalized intervention measures should be adopted for college students of different genders and stress levels to effectively prevent and alleviate MPA and BP, promoting the healthy growth and comprehensive development of college students.

The Emotional Reinforcement Mechanism of and Phased Intervention Strategies for Social Media Addiction

Social media addiction has become a global public health challenge, and understanding its mechanism's complexity requires the integration of the transitional characteristics of addiction development stages and breaking through the traditional single-reinforcement-path explanatory framework. This study is based on the dual pathway of positive and negative emotional reinforcement, integrating multidisciplinary evidence from neuroscience, psychology, and computational behavioral science to propose an independent and dynamic interaction mechanism of positive reinforcement (driven by social rewards) and negative reinforcement (driven by emotional avoidance) in social media addiction. Through a review, it was found that early addiction is mediated by the midbrain limbic dopamine system due to immediate pleasurable experiences (such as liking), while late addiction is maintained by negative emotional cycles due to the dysfunction of the prefrontal limbic circuit. The transition from early addiction to late addiction is characterized by independence and interactivity. Based on this, a phased intervention strategy is proposed, which uses reward competition strategies (such as cognitive behavioral therapy and alternative rewards) to weaken dopamine sensitization in the positive reinforcement stage, enhances self-control by blocking emotional escape (such as through mindfulness training and algorithm innovation) in the negative reinforcement stage, and uses cross-pathway joint intervention in the interaction stage. This study provides a theoretical integration framework for interdisciplinary research on social media addiction from a dynamic perspective for the first time. It is recommended that emotional reinforcement variables are included in addiction diagnosis, opening up new paths for precise intervention in different stages of social media addiction development.

Problematic Use of Video Games, Social Media, and Alcohol: Exploring Reciprocal Relations with the Big Five Personality Traits in a Longitudinal Design

BACKGROUND/OBJECTIVES

The problematic use of video games (PG), social media (PSMU), and alcohol (PAU) is widespread from adolescence onwards. According to theoretical models, personality traits are relevant for these problematic behavioral patterns; however, only very few longitudinal studies are available. The aim of this longitudinal study was to investigate for the first time whether Big Five personality dimensions (BFPD) are predictors for the development of PG, PSMU, or PAU, or conversely, whether these behavioral patterns are predictive of the BFPD.

METHODS

Surveys were conducted over three measurement time points (t1 to t3) using standardized instruments on PG, PSMU, PAU, and BFPD. A total of 492 young people (average age: 16.83 years, 44.1% female and 55.9% male) were investigated at t1, 475 persons (mean age: 17.93 years, 44.8% female, 55.2% male) at t2, and 443 cases (average age: 20.11 years, 45.1% female, 54.9% male) at t3. We calculated cross-lagged panel analyses over three measurement points (structural equation modeling).

RESULTS

Of the BFPD, lower Conscientiousness and lower Extraversion were predictors of PG, higher Negative Emotionality (Neuroticism) predicted PSMU, and lower Agreeableness was a predictor of PAU. Only PAU was a predictor of a Big Five dimension (lower Agreeableness).

CONCLUSIONS

The findings were not consistent across the measurement points (t1 to t2 vs. t2 to t3) with one exception in an explorative analysis: problematic gaming was a predictor for both problematic social media use and problematic alcohol use in youth (t1 to t2 and t2 to t3). The influence of lower Conscientiousness was confirmed for PG and initial longitudinal results for PSMU and PAU were observed. These novel findings could be considered when developing or revising preventive measures.

Trait sexual motivation shapes cue reactivity in visual, but not auditory, sexual reward learning: Psychophysiological and computational evidence

Beyond their incentive value, visual sexual stimuli are thought to have intrinsically rewarding properties that may contribute to the rising prevalence of problematic pornography use. However, whether excessive consumption of visual sexual stimuli fits classic models of addiction and involves reinforcement-based learning remains controversial. To address this question, the present study focused on the interplay of individual differences in trait sexual desire (specifically, the drive to engage in solitary sexuality) with stimulus modality in appetitive Pavlovian conditioning. 62 heterosexual participants (final sample, 36 women) underwent two sessions of differential conditioning, spaced one week apart. During one learning session, neutral cues were reinforced (50 %) by presentation of visual sexual stimuli, while auditory sexual stimuli served as unconditioned stimuli during the other session. Indexing both sexual arousal and appetitive learning, pupil dilation (as well as startle modulation) was used to track the acquisition of conditioned responses. Results revealed that solitary sexuality was associated with blunted differential pupillary responses to cues predicting visual (yet not auditory) sexual stimuli and less sensitization across trials, presumably reflecting reduced anticipatory arousal (consistent with self-report findings) and/or altered processing of uncertainty. At the same time, both enhanced startle habituation and valence ratings suggest that the preference for erotica was unaffected in individuals high in solitary sexuality. Fitted computational models provide additional evidence for a link to divergent learning trajectories. Taken together, our findings underscore the special nature of visual sexual stimuli (compared to auditory sexual stimuli) and support the view that excessive consumption may reflect a dispositional reward deficiency that drives individuals to seek out more intense stimulation.

The relationship between physical activity and social network site addiction among adolescents: the chain mediating role of anxiety and ego-depletion

BACKGROUND AND OBJECTIVES

Physical activity is associated with social network site addiction in adolescents, yet the mechanisms remain unclear. This study examines whether anxiety and ego-depletion mediate this relationship.

METHODS

A survey was conducted among 1,174 Chinese adolescents (614 boys, 560 girls; mean age = 12.59, SD = 1.13). Physical activity was assessed with a single item on moderate-to-vigorous exercise in the past 7 days. Social network site addiction, anxiety, and ego-depletion were measured using validated self-report questionnaires. Descriptive statistics, correlation analyses, and a chained mediation model were employed.

RESULTS

Physical activity was negatively correlated with social network site addiction (r = -0.165, p < 0.001), anxiety (r = -0.121, p < 0.001), and ego-depletion (r = -0.119, p < 0.001). Anxiety was positively correlated with ego-depletion (r = 0.574, p < 0.001) and social network site addiction (r = 0.388, p < 0.001). Ego-depletion was positively associated with social network site addiction (r = 0.456, p < 0.001). Anxiety and ego-depletion sequentially mediated the relationship between physical activity and social network site addiction.

CONCLUSION

This study clarifies the psychological mechanisms linking physical activity and social network site addiction in adolescents, identifying anxiety and ego-depletion as key mediators. The findings emphasize the need to target these factors for more effective interventions.

Love addiction symptoms and subjective cognitive complaints: The mediator role of depression and anxiety and the impact of social media use

Love addiction (LA) can lead to adverse psychological, social, and cognitive consequences. However, the relationship between LA symptoms and perceived cognitive function, as well as the contribution of social media use, remains unclear. The present study aimed to unravel the exact nature of these relationships in a large Italian sample using an online questionnaire. We found that individuals with even mild LA symptoms experienced reduced everyday memory ability and more severe cognitive failures during daily activities and at work, compared to those without LA. Psychological symptoms mediated the effect of LA symptoms on perceived cognitive function, with the use of social media as a strong risk factor for LA development. LA deserves more scientific attention to provide clinicians with a clinical framework and spread awareness of its harmful consequences involving cognitive aspects. Awareness should encourage most at-risk individuals to recognize early LA manifestations and seek professional help for mental health care.

The Longitudinal Effect of Psychological Distress on Internet Addiction Symptoms Among Chinese College Students: Cross-Lagged Panel Network Analysis

BACKGROUND

There is a growing amount of evidence suggesting high rates of co-occurring internet addiction (IA) symptoms and psychological distress in youth. However, the extent to which IA symptoms develop over time, how they interact with psychological distress symptoms dynamically, and how they predict one another remain unclear. Additionally, what specific types of distress, including depression, anxiety, and stress, are more closely associated with IA symptoms remains inconclusive.

OBJECTIVE

This longitudinal study aimed to explore the development of and changes in IA symptoms over time and the directional relationship between IA and various psychological distress symptoms.

METHODS

This study followed a sample of 2497 Chinese college students (mean age 19.14, SD 0.72 years) across 3 waves of a data collection span of 2 years. Their IA and psychological distress symptoms were assessed at baseline (T1), 12-month follow-up (T2), and 24-month follow-up (T3). We used network analysis to examine the network structure of IA symptoms at each wave and cross-lagged panel network (CLPN) analysis to investigate longitudinal associations between IA symptoms and psychological distress, including depressive, anxiety, and stress symptoms.

RESULTS

The cross-sectional networks of IA symptoms at 3 time points showed high similarity in terms of structure, existence of edges, and centrality indices. Nodes A2 (excessive use), A1 (salience), and A5 (lack of control) emerged as nodes with the highest expected influence (EI) centrality in the IA symptom networks across time (A2: EI=1.13 at T1, 1.15 at T2, 1.17 at T3; A1: EI=1.10 at T1, 1.13 at T2, 1.15 at T3; A5: EI=0.86 at T1, 0.88 at T2, 0.92 at T3). CLPN analysis revealed that psychological distress predicts IA symptoms but not the other way around. Depressive symptoms played a key role in predicting various IA-related problems (T1 to T2, edge weight=0.11; T2 to T3, edge weight=0.28; T1 to T3, edge weight=0.22) and served as bridge symptoms connecting IA and psychological distress (T1 to T2: bridge-expected influence [BEI]=0.15; T2 to T3: BEI=0.14; T1 to T3: BEI=0.19).

CONCLUSIONS

Findings revealed a relatively stable network structure of IA symptoms among college students and suggested that psychological distress, especially depressive symptoms, may play a central role in activating IA symptoms over time. These results provide evidence for understanding the directional relationship between the central characteristics of distress symptoms and IA. The study also underscores the importance of depressive symptoms in their co-occurrence with IA, indicating that the key and bridge symptoms identified in this study can be prioritized as targets for preventing and treating IA in Chinese youth. Through identification and early intervention of depressive symptoms, we may avoid the progression of co-occurring issues, leading to more effective treatment outcomes.

Gender differences in the prevalence and psychopathological mechanisms of internet addiction among Iranians aged 18 to 24: A nationwide study

BACKGROUND

The rapid advancement of technology has revolutionized interaction, learning, and entertainment but also led to Internet addiction, characterized by excessive internet use causing impairment or distress.

OBJECTIVE

The study explores gender differences in prevalence, risk factors, and clinical aspects of Internet addiction among Iranian youth, highlighting cultural and societal influences.

METHODS

A nationwide sample of 3149 individuals aged 18 to 24 was categorized into two groups: those with Internet addiction (n = 1040) and those without (n = 2109). Participants completed the Childhood Trauma Questionnaire-28, Dissociative Experiences Scale (DES), Difficulties in Emotion Regulation Scale (DERS), and Internet Addiction Test (IAT). Data analyses were conducted using SPSS software version 26, with a significance level set at <0.05.

RESULTS

Overall prevalence of Internet addiction was found to be 33 %, with a higher incidence in males (63.3 %) compared to females (36.7 %) (χ2 = 13.28, p = 0.001). In men, the severity of Internet addiction was significantly linked to emotional abuse (β = 0.20, p˂0.001), DES (β = 0.39, p˂0.001), and DERS (β = 0.16, p˂0.001) (F(3, 654) = 89.85, p˂0.001, R2 = 0.29); while in women, it was associated with emotional abuse (β = 0.18, p˂0.001) and dissociative experiences (β = 0.16, p˂0.001) (F(2, 379) = 13.70, p˂0.001, R2 = 0.06). The DES partially mediated the relationship between emotional abuse and IAT scores in both genders, whereas DERS only did so in males.

CONCLUSIONS

The study suggests Internet addiction as a maladaptive coping mechanism for early emotional abuse, highlighting the need for prevention programs and emotion regulation interventions. Future research should consider longitudinal effects and cultural influences.

Translation and validation of the Portuguese version of the internet severity and activities addiction questionnaire (ISAAQ-10) towards the identification of problematic social media use: A population study

BACKGROUND

Problematic usage of the internet (PUI) refers to a pattern of internet use that results in negative consequences in an individual's life. It encompasses a broad spectrum of activities, which require assessment in terms of both severity and diversity, for a comprehensive understanding. This study aimed to translate the Internet Severity and Activities Questionnaire (ISAAQ-10) into Portuguese, to analyze its psychometric properties and to explore the validity of the ISAAQ-10 social networking use activity score towards identifying problematic social media use.

METHODS

A snowball sampling method was used, with participants completing an online survey comprising sociodemographic questions and the Portuguese versions of the ISAAQ-10, Internet Addiction Test-10 (IAT-10), Internet Gaming Disorder Scale-Short-Form (IGDS9-SF), and Bergen Social Media Addiction Scale (BSMAS). The psychometric analysis included internal reliability testing using Cronbach's alphas and test-retest reliability, a confirmatory factor analysis (CFA), and convergent validity testing between the ISAAQ-10 and IAT-10. The concurrent validity of the ISAAQ-10 was also examined.

RESULTS

A total of 590 young adults (85.1 % female), aged between 18 and 35 years, participated in this study. The ISAAQ-10 presented good internal consistency (α = 0.93), with a test-retest correlation of r = 0.865; 95 % CI: 0.669-0.939. and a unidimensional structure that explained 48.3 % of the total variance. The convergent validity of the ISAAQ-10's total score was established through a high Pearson's correlation (r = 0.574; p ≤ .001) with the IAT-10's total score. Pearson's correlations between the ISAAQ-10 gaming activity score and the IGDS9-SF (r = 0.873; p < .001), and between the ISAAQ-10 social networking use activity score and the BSMAS (r = 0.670; p < .001), respectively, supported the instrument's concurrent validity.

CONCLUSION

This work provides support for the Portuguese translation of the ISAAQ-10, which can be employed to identify the severity of problematic usage of the internet in a population sample. It also provides the first validation of the ISAAQ-10 social networking use activity score, which can be employed to identify problematic social media use within a predominately female university student sample. This study further establishes the ISAAQ-10 as a valid and reliable tool for population studies and, specifically, for the identification of problematic social media use.

Temporal variability-based alternations in dynamic functional networks in internet gaming disorder

BACKGROUND

Previous studies on resting-state functional connectivity (FC) in internet gaming disorder (IGD) have typically assumed that FC is static during the entire scan, neglecting the dynamic reorganization of brain networks. However, understanding the dynamic changes in functional networks is crucial for a comprehensive understanding of IGD, a complex and evolving disorder.

METHODS

Resting-state fMRI data were collected from 269 participants (132 IGD subjects, male/female: 72/60, and 137 recreational game users (RGUs), male/female: 85/52). At the network level (within-network and between-network), temporal variability indices were calculated for each group and subjected to independent samples t-tests.

RESULTS

Compared to RGUs, IGD individuals exhibited decreased within-network variability in the default mode network (DMN), increased within-network temporal variability in the ventral attention network (VAN), and increased between-network temporal variability in sensorimotor network (SMN) and VAN, SMN and limbic network (LN), VAN and LN.

CONCLUSIONS

Changes in temporal variability at the network level occur in participants with IGD, indicating impaired executive inhibitory functions and attention, as well as imbalances between sensory-attention, sensory-emotion, and emotion-motivation functions. These findings provide new insights into the dynamic functional organization of the brain in IGD, contributing to our understanding the neural basis of pathological gaming behaviors.

The relationship between college students' belief in a just world and internet addiction: the moderating effect of legal cognition

Background

Previous studies have explored various personality and emotional variables influencing internet addiction. However, few have examined the impact mechanism of legal cognition on internet addiction. This study examined the relationship between belief in a just world and internet addiction, investigating whether legal cognition could moderate the effect of belief in a just world on internet addiction.

Methods

The study used the Belief in a Just World Scale, the Internet Addiction Scale, and the Legal Cognition Assessment Scale to survey 532 college students from universities in mainland China.

Results

Correlation analysis indicated a significant negative correlation between belief in a just world and internet addiction; belief in a just world negatively predicted internet addiction, and both the overall score of legal cognition and abstract legal cognition moderated this relationship.

Conclusions

College students' internet addiction was influenced by belief in a just world and legal cognition, suggesting that interventions for internet addiction among college students could involve cognitive-behavioral therapy and education on the rule of law.

Assessing the Spectrum of Internet Use in a Healthy Sample: Altered Psychological States and Intact Brain Responses to an Equiprobable Go/NoGo Task

Problematic internet use (PIU) is linked to psychological distress and cognitive alterations, yet its early pre-clinical effects remain unclear. This study explored the psychological, behavioral, and neurophysiological correlates of PIU in a healthy, non-clinical population, focusing on response inhibition and execution within internet use patterns. A total of 133 participants (74 females, aged 18-35) were assessed using PIUQ-9 and DPIU questionnaires, along with measures of anxiety, depression, and obsessive-compulsive symptoms. An auditory equiprobable Go/NoGo task was used and event-related potentials (ERPs; N1/N2/P2/P3) were analyzed in relation to PIU severity and different online activities engagement. Additionally, behavioral, psychological, and neurophysiological profiles of individuals with high and low PIU levels were compared. PIU severity correlated with anxiety, depression, and obsessive-compulsive symptoms, while Go/NoGo task accuracy was unaffected. N1 amplitudes negatively correlated with PIU severity and gaming engagement, suggesting altered early sensory processing. NoGo-P3 latency positively correlated with information search engagement, indicating delayed inhibitory processing in frequent online searchers. High and low PIU groups differed in psychological measures but not in ERP or behavioral measures. Our findings confirm psychological distress in PIU alongside subtle neurophysiological alterations, suggesting that ERP measures in the equiprobable Go/NoGo task may not be highly sensitive PIU risk biomarkers in non-clinical populations.

Understanding daily problematic social media use of young adults: the role of trait- and state-fear of missing out

Fear of missing out (FoMO) is strongly associated with problematic social media use (PSMU) in young adults; however, little is known about the different roles of trait-FoMO and state-FoMO in PSMU. This longitudinal study used 9-consecutive-day ecological momentary assessment (EMA) to investigate the momentary association between state-FoMO and PSMU and to determine whether such association is moderated by trait-FoMO. We used EMA to measure three daily social media use variables (i.e. craving, time spent on social media, and daily social media self-control failure) to determine daily PSMU. 129 female undergraduates (Mage = 20.48, SD = 1.47) completed a total of 4290 EMA surveys. All main variables were significantly and positively correlated with each other at baseline. Multilevel models revealed that the association of momentary state-FoMO with PSMU was significantly positive. Furthermore, trait-FoMO only moderated the positive association between daily state-FoMO and craving. Specifically, trait-FoMO enhanced the influence of daily state-FoMO on craving, and individuals with lower state-FoMO were more susceptible to the effects of trait-FoMO than individuals with higher state-FoMO. Different implications of trait-FoMO and state-FoMO are discussed particularly regarding their potential to increase the risk of young adult PSMU.

Effectiveness and satisfaction of mindfulness-based cognitive therapy for children on anxiety, depression, and internet addiction in adolescents: Study protocol for a randomized control trial

Adolescents with Internet addiction (IA) frequently encounter elevated levels of anxiety and depression, which subsequently results in the perpetuation of their addiction behaviors. Mindfulness-based cognitive therapy for children (MBCT-C) is an adapted version of traditional MBCT that targets emotional problems in children. The present study aimed to provide a framework for the implementation of a clinical trial for its effectiveness in reducing anxiety, depression, and IA in adolescents with IA. This study protocol proposes a randomized controlled trial with two parallel arms (MBCT-C versus active control). Eighty Iranian adolescents (Persian ethnicity; males and females; 12 to 15 years) diagnosed with IA will be randomly assigned to the intervention group (12 sessions of MBCT-C group therapy) or the control group (12 life skills training sessions). Pre-intervention, post-intervention, and three-month follow-up assessments will be conducted using Mindful Attention Awareness Scale-Adolescents (MAAS-A), Mindfulness Program Satisfaction Questioner (MPSQ), Reynolds Adolescent Depression Scale (RADS), State-Trait Anxiety Inventory-Children (STAI-C), MBCT-C Adherence Scale (MBCT-C-AS), and Internet Addiction Test (IAT). Data will be analyzed using mixed regression model using STATA-18 to assess the effectiveness of MBCT-C. The current study has the potential to make a significant contribution to evaluate the effectiveness of MBCT-C to address IA, anxiety, and depression in adolescents with IA.

The Mediating Role of Mindfulness Between Impulsive Sensation Seeking and Readiness for Change Among Clients With Substance Use Disorders

OBJECTIVE

Examine the mediating role of mindfulness between impulsive sensation seeking and readiness for change.

DESIGN

A cross-sectional descriptive correlational study was conducted.

METHODS

A convenient sample of 200 clients with substance use disorders was recruited. Data were collected using the Five Facet Mindfulness Questionnaire, the Impulsive Sensation Seeking scale, and the Stages of Change Readiness and Treatment Eagerness Scale.

RESULTS

A significant positive correlation was found between mindfulness and readiness for change (r = 0.174, p = 0.014), and a significant negative correlation between readiness for change and impulsive sensation seeking (r = -0.219, p = 0.002). Impulsivity (mean percent score = 80.25%) and sensation-seeking traits (mean percent score = 78.73%) negatively impacted readiness for change. Mindfulness partially mediated the relationship between impulsive sensation seeking and readiness for change (indirect effect = -0.056, p = 0.005).

CONCLUSION

Mindfulness-based interventions show potential to enhance readiness for change by mitigating impulsivity. Addressing the interplay between impulsive sensation seeking, mindfulness, and readiness for change may promote recovery in clients with substance use disorders. While sustained recovery was not longitudinally assessed, findings suggest pathways for future investigation.

NURSING IMPLICATIONS

Psychiatric nurses must incorporate mindfulness interventions, regular assessments of impulsivity, and tailored care plans in their care for clients with substance use disorders. Educating patients on mindfulness benefits and providing continuous support through the change process might improve substance use disorders treatment outcomes. By integrating these strategies, psychiatric nurses can significantly enhance the effectiveness of substance use disorders treatments.

The central mediating effect of inhibitory control and negative emotion on the relationship between bullying victimization and social network site addiction in adolescents

BACKGROUND AND OBJECTIVES

Bullying victimization is strongly associated with social network site addiction among adolescents. However, the underlying mechanisms between these variables remain unclear. This study aims to explore the psychological mechanisms linking bullying victimization to social network site addiction by examining the mediating roles of depression, anxiety, stress, and inhibitory control.

METHODS

A self-report survey was conducted among a sample of 1,005 adolescents in China. The survey included measures of bullying victimization, social network site addiction, depression, anxiety, stress, and inhibitory control. Descriptive and correlational analyses were performed, followed by the construction of a chain mediation model.

RESULTS

Bullying victimization was significantly positively associated with social network site addiction. However, this relationship became non-significant when negative emotional states (depression, anxiety, stress) and inhibitory control were introduced as mediating variables. Specifically, bullying victimization significantly predicted negative emotional states and was negatively associated with inhibitory control. Negative emotional states were also negatively related to inhibitory control, while inhibitory control was negatively associated with social network site addiction. Among the negative emotional states, stress and anxiety showed a significant negative correlation with social network site addiction.

CONCLUSION

This study sheds further light on the psychological mechanisms linking bullying victimization and social network site addiction among adolescents. Depression, anxiety, stress, and inhibitory control act as mediating factors in this relationship. These findings highlight the importance of targeting these variables in understanding and developing interventions for social network site addiction among adolescents.

Protocol for a Randomized Controlled Trial to Enhance Executive Function via Brief Mindfulness Training in Individuals with Internet Gaming Disorder

BACKGROUND

Internet Gaming Disorder (IGD) is characterized by uncontrolled gaming behavior, leading to emotional distress, neglect of academic or life responsibilities, and damage to interpersonal relationships, all of which have serious negative impacts on individuals and society. IGD has been associated with neuropsychological impairments, especially executive function deficits, and emotional difficulties. Mindfulness interventions have been indicated to improve executive functions to varying degrees in individuals with IGD. The purpose of this study is to investigate whether the three subcomponents of executive function (i.e., inhibition, updating, and shifting) are impaired in individuals with internet gaming disorder, as well as to examine the effectiveness of a brief mindfulness intervention on executive function.

METHODS

A total of 82 individuals diagnosed with IGD and 40 non-addicted gamers will be recruited for this study. These participants will be evenly divided into an intervention group and a control group at a ratio of 1:1. The intervention group will undergo a 7-day mindfulness training program focusing on breathing meditation, while the control group will receive progressive muscle relaxation training. Both groups' outcomes will be assessed at seven different time points. Primary outcome measures will include electroencephalography (EEG) data (band power, functional connectivity, source localization, and N2/P3 amplitudes), behavioral metrics (response times and accuracy from psychological experimental paradigms), physiological indices (specifically heart rate variability), self-reported measures (game craving and mindfulness levels, executive function performance, and impulsivity emphasizing inhibitory control). Secondary outcome measures will encompass anxiety, stress, positive and negative affect, sleep quality, and other indicators such as demographic information, physical and mental health status, and the Big Five personality traits.

DISCUSSION

This study aims to explore the efficacy of a brief mindfulness intervention on executive function impairments in IGD individuals and to elucidate its underlying neural mechanisms. It is anticipated that the findings will contribute to more targeted intervention strategies for executive function research, offering novel insights into the treatment of IGD and related cognitive dysfunctions. This study is expected to explore the effectiveness of brief mindfulness intervention on IGD and its underlying brain functional mechanisms, particularly providing more targeted intervention strategies for improving executive functions in this population.

TRIAL REGISTRATION

Trial registration number: ChiCTR2400081509, registered on March 4th 2024. Protocol Version1.0.

The effect of basic need dissatisfaction and lack of social support on problematic Internet use in emerging adults: The mediating role of regulatory emotional self-efficacy

The purpose of this research is to explore the mediating role of regulatory emotional self-efficacy in the relationship between dissatisfaction basic psychological needs, lack of social support on problematic Internet use among emerging adults. The study sample comprises 436 emerging adults (mean age = 22.42, SD = 2.05, range = 18-30), including 244 females (56.0 %) and 192 males (44.0 %). Data were collected using the Young Internet Addiction Test Short Form, the Need Satisfaction Scale, the Multidimensional Perceived Social Support Scale, and the Regulatory Emotional Self-Efficacy Scale. To analyze the data, the Pearson Product Moment Correlation Coefficient was employed to examine the relationships between variables, and the bootstrapping method was applied for mediation analyses. Preliminary results revealed significant positive associations between dissatisfaction of basic needs, insufficient social support, and problematic Internet use, while a significant negative association was observed between emotional self-regulation efficacy and problematic Internet use. Additionally, regulatory emotional self-efficacy efficacy showed a significant negative relationship with problematic Internet use. Mediation analyses indicated that regulatory emotional self-efficacy fully mediated the impact of basic need dissatisfaction and lack of social support on problematic Internet use. These findings suggest that regulatory emotional self-efficacy acts as a protective mechanism, mitigating the adverse effects of these negative factors.

Structural equation modeling of problematic internet use based on executive function, interpersonal needs, fear of missing out and depression

This study aimed to model PIU (Problematic Internet Use) based on executive functions, interpersonal needs, depression, and fear of missing out in adolescents aged 15 to 19 residing in Tehran. The sample size included 200 girls and boys selected through convenience sampling. Participants completed the computerized Wisconsin Card Sorting Test, Young's Internet Addiction Test (IAT), Beck Depression Inventory (BDI-II), Fear of Missing Out scale (FOMOS), and Interpersonal Needs Questionnaire (INQ). The data were analyzed using structural equation modeling with SPSS 26 and AMOS 24 software. According to the results, executive functions directly and through the mediating effects of depression and the fear of missing out, predicted PIU. Thwarted belongingness through the mediating effect of depression and the fear of missing out had an effect on PIU. Perceived burdensomeness predicted PIU directly and indirectly through the mediating effect of depression. The relationship between perceived burdensomeness and fear of missing out was not significant in this study. Overall, the fit indices indicated that the proposed research model is a good fit, and executive functions, depression, interpersonal needs, and fear of missing out can predict PIU. Moreover, executive functions, thwarted belongingness, and perceived burdensomeness were able to predict depression, and executive functions, along with thwarted belongingness, could predict fear of missing out.

The role of psychological distress in understanding the relationship between habitual decision-making and addictive behaviors

Existing models are currently inadequate in explaining the relationship between habitual decision-making and different expressions of addictive behaviors. The current study investigates the role of psychological distress as a key factor in disrupting decision-making processes in the context of substance and behavioral addictions. A large community sample (N = 668) completed a gamified two-stage task to investigate the link between model-free (habitual) task behavior and a wide range of addictive behaviors. Addictive behaviors included substance use (alcohol, nicotine, and illicit drug use) and behavioral addictions (problematic use of the internet, addictive eating, shopping, and gambling). The relationship between habitual task behavior and addictive engagement was investigated using structural equation modelling with a bifactor latent variable structure, which was modeled and tested; one for substance use and one for behavioral addictions. For participants with higher levels of psychological distress, greater habitual task behavior was a significant predictor of behavioral addiction risk (β = -0.188, SE = 2.061, p = .016), specifically problematic use of the internet (β = -0.148, SE = 0.045, p = .018) and eating behaviors (β = -0.191, SE = 0.016, p < .001). These findings support our proposition that psychological distress disrupts cognitive control, leading to a greater reliance on habitual decision-making and non-substance addictive behaviors. This highlights the potential importance of habit-based interventions in combination with stress-reduction and mental health-promoting techniques to improve outcomes and minimize harm, especially in the context of behavioral addictions.

Mindful attention awareness reduces binge watching engagement: The mediating role of emotion regulation difficulties

Mindful attention awareness (MAA) has a protective role on the development of a wide range of problematic behaviors. Yet, no data is available on the relationship between MAA and binge watching (BW) - broadly defined as consecutively watching multiple episodes of TV series. To fill this gap, 442 adults completed an online battery of questionnaires measuring MAA, emotion regulation difficulties and BW engagement and symptoms. The results of the correlational and path analyses indicated that MAA was negatively associated with both positive and negative BW; furthermore, these negative effects were mediated by reductions in impulse control difficulties, as well as by increases in emotional awareness and enhanced access to emotion regulation strategies. These findings suggest that mindfulness-based interventions aimed at reducing emotion regulation difficulties might be effective in reducing the negative consequences that may arise from the engagement in problematic forms of BW.

Network analysis of peer attachment and internet addiction among chinese adolescents

Previous studies have found a correlation between peer attachment and Internet addiction. The three dimensions (peer trust, peer communication, and peer alienation) of peer attachment reflect different needs in peer relationships. This study used network analysis to construct a network model of the three dimensions of peer attachment and Internet addiction. The primary aim was to identify which peer relationship needs are most significantly associated with Internet addiction in adolescents. A total of 782 adolescents (413 girls and 369 boys, Mean age = 13.52, SD age = 1.17) from school participated in this study. Basic demographic information was obtained through a questionnaire. Inventory of Parent and Peer Attachment and Young Internet Addiction Test were used to measure peer attachment and Internet addiction in adolescents. Internet addiction was negatively correlated with the three dimensions of peer attachment: peer trust (r = -0.22), peer communication (r = -0.17), and peer alienation (r = -0.47). Peer trust was the central factor in the network model. Prominent symptoms in the network model included IA2 ("How often do you neglect household chores to spend more time online?") and IA12 ("How often do you fear that life without the Internet would be boring, empty, and joyless?"). Peer communication acted as a bridge between peer attachment and Internet addiction in the network model. Less trust in peers is associated with a higher risk of becoming addicted to the Internet. Fostering peer trust may encourage adolescents to engage in real-life social activities, thus reducing their reliance on the Internet for social fulfillment.

Transdiagnostic Compulsivity Traits in Problematic Use of the Internet Among UK Residents: Cross-Sectional Network Analysis Study

BACKGROUND

The societal and public health costs of problematic use of the internet (PUI) are increasingly recognized as a concern across all age groups, presenting a growing challenge for mental health research. International scientific initiatives have emphasized the need to explore the potential roles of personality features in PUI. Compulsivity is a key personality trait associated with PUI and has been recognized by experts as a critical factor that should be prioritized in PUI research. Given that compulsivity is a multidimensional construct and PUI encompasses diverse symptoms, different underlying mechanisms are likely involved. However, the specific relationships between compulsivity dimensions and PUI symptoms remain unclear, limiting our understanding of compulsivity's role in PUI.

OBJECTIVE

This study aimed to clarify the unique relationships among different dimensions of compulsivity, namely, perfectionism, reward drive, cognitive rigidity, and symptoms of PUI using a symptom-based network approach.

METHODS

A regularized partial-correlation network was fitted using a large-scale sample from the United Kingdom. Bridge centrality analysis was conducted to identify bridge nodes within the network. Node predictability analysis was performed to assess the self-determination and controllability of the nodes within the network.

RESULTS

The sample comprised 122,345 individuals from the United Kingdom (51.4% female, age: mean 43.7, SD 16.5, range 9-86 years). The analysis identified several strong mechanistic relationships. The strongest positive intracluster edge was between reward drive and PUI4 (financial consequences due to internet use; weight=0.11). Meanwhile, the strongest negative intracluster edge was between perfectionism and PUI4 (financial consequences due to internet use; weight=0.04). Cognitive rigidity showed strong relationships with PUI2 (internet use for distress relief; weight=0.06) and PUI3 (internet use for loneliness or boredom; weight=0.07). Notably, reward drive (bridge expected influence=0.32) and cognitive rigidity (bridge expected influence=0.16) were identified as key bridge nodes, positively associated with PUI symptoms. Meanwhile, perfectionism exhibited a negative association with PUI symptoms (bridge expected influence=-0.05). The network's overall mean predictability was 0.37, with PUI6 (compulsion, predictability=0.55) showing the highest predictability.

CONCLUSIONS

The findings reveal distinct relationships between different dimensions of compulsivity and individual PUI symptoms, supporting the importance of choosing targeted interventions based on individual symptom profiles. In addition, the identified bridge nodes, reward drive, and cognitive rigidity may represent promising targets for PUI prevention and intervention and warrant further investigation.

Gambling and other addictive behaviors among higher education students in Finland-insights from a large-scale survey

Introduction

Problem gambling forms a continuum of severity from mild to moderate and severe. While most young individuals who gamble do so responsibly, for some gambling becomes a problem with severe negative consequences. Excessive gambling is strongly linked with substance use and other behavioral addictions, particularly among students.

Methods

In this study we draw from a large sample of higher education students to evaluate the links between gambling behavior, socioeconomic status, mental health, alcohol use and other potentially addictive behaviors. We analyzed our data using post-stratification survey weighted logistic regression modeling.

Results

Our main findings were that (i) students in polytechnics were more prone to gamble and experience harms than university students, (ii) self-perceived problem gambling was significantly associated with alcohol use but not with drug use or smoking, and (iii) compulsive internet use predicted gambling problems but not increased gambling activity.

Discussion

Our results underscore the need for early detection of harmful behaviors among students, and early interventions for those with severe problems. Student health checks should be used to screen for harmful gambling habits and difficulties in handling finances.

Temporal focus, dual-system self-control, and college students' short-video addiction: a variable-centered and person-centered approach

Background

Short video addiction has become increasingly prevalent among college students. It can negatively impact their physical and mental health, yet its influencing factors and underlying mechanisms require further exploration. Time focus and self-control are recognized as critical determinants in shaping addictive behaviors.

Objective

Grounded in the I-PACE theory, this study examines the relationship between emotional and cognitive responses (various temporal focuses and dual systems of self-control) and short video addiction, while also investigating the mediating roles of inhibitory and initiation control.

Methods

Methodologically, it integrates both variable-centered and person-centered approaches, utilizing the Time Focus Scale, Multidimensional Self-Control Scale, and Short Video Addiction Scale. A total of 2,239 university students participated in the survey.

Results

The results revealed the following: (1) Past and present time focus were positively correlated with short video addiction, while future time focus showed a negative correlation. Inhibitory self-control was positively associated with short video addiction, whereas initiatory self-control was negatively correlated. Variable-centered analysis demonstrated that past and present time focus positively predicted short video addiction, with inhibitory self-control mediating the relationship between these time orientations and addiction. Conversely, initiatory self-control played a mediating role between future time focus and addiction risk, with a negative predictive effect on the likelihood of short video addiction. (2) Person-centered analysis identified four categories of short video addiction: non-addicted (12.68%), low-risk addiction (34.21%), moderate-risk addiction (42.20%), and high-risk addiction (10.89%). (3) Logistic regression analysis indicated that students with excessive past and present time focus were more likely to fall into the high-risk addiction category, while those employing inhibitory self-control strategies were more likely to be categorized into low, moderate, or high-risk addiction groups. Students utilizing initiatory self-control were less likely to develop high-risk addiction. Female students were more likely than male students to fall into the low, moderate, or high addiction categories, and only children were more likely to belong to the moderate or high-risk addiction categories than non-only children.

Conclusion

This study emphasizes the pivotal role of time focus and dual-system self-control in the intervention and prevention of short video addiction,further highlighting the role of emotional and cognitive responses in the development of short-video addiction. The implications of the findings, as well as the limitations of the study, are also discussed.

Integrative gray matter volume and molecular analyses of altered intrinsic neural timescale in internet gaming disorder

BACKGROUND

Internet gaming disorder (IGD) frequently features abnormalities in emotional and cognitive processing, for which the specific neurobiological mechanisms are not known. The intrinsic neural timescale (INT) gradient reflects how long neural information is stored in a specialized brain region and represents its function. Therefore, we investigated whether IGD exhibited altered INT and accompanying gray matter volume (GMV) and underlying molecular architectural abnormalities.

METHODS

Resting-state functional magnetic resonance data from 57 patients with IGD (IGDs) and 50 demographically matched healthy controls (HCs) were collected, and INT was calculated by assessing the autocorrelation of intrinsic neural signals. Voxel-based morphometric analysis was conducted to calculate whole-brain GMV. Then, comparing INT between groups and correlation analysis with clinical characteristics was performed. Furthermore, correlations between INT and PET- and SPECT-driven maps were used to examine specific neurotransmitter system alternations.

RESULT

Compared to HCs, IGDs exhibited shorter timescales in the bilateral insula, bilateral parahippocampal gyrus, left amygdala, and left superior temporal pole. The decreased INT in the right insula was positively correlated with the severity of internet addiction. Interestingly, the shorter timescales are spatially associated with the serotonergic system.

CONCLUSION

This study suggests atypical emotional and cognitive processing deficits in localized brain regions of IGDs. And these findings establish a link between abnormal local neurodynamics and structures and neurotransmitters, which facilitates synthesized comprehension of IGDs and provides new perspectives for treatment.