The effects of emotion dysregulation and negative affect on urge to smoke and nicotine dependence: The different roles of metacognitions about smoking

Modulation of High-Frequency rTMS on Reward Circuitry in Individuals with Nicotine Dependence: A Preliminary fMRI Study

Although previous studies have shown that repetitive transcranial magnetic stimulation (rTMS) can ameliorate addictive behaviors and cravings, the underlying neural mechanisms remain unclear. This study aimed to investigate the effect of high-frequency rTMS with the left dorsolateral prefrontal cortex (L-DLPFC) as a target region on smoking addiction in nicotine-dependent individuals by detecting the change of spontaneous brain activity in the reward circuitry. We recruited 17 nicotine-dependence participants, who completed 10 sessions of 10 Hz rTMS over a 2-week period and underwent evaluation of several dependence-related scales, and resting-state fMRI scan before and after the treatment. Functional connectivity (FC) analysis was conducted with reward-related brain regions as seeds, including ventral tegmental area, bilateral nucleus accumbens (NAc), bilateral DLPFC, and bilateral amygdala. We found that, after the treatment, individuals showed reduced nicotine dependence, alleviated tobacco withdrawal symptoms, and diminished smoking cravings. The right NAc showed increased FC with right fusiform gyrus, inferior temporal gyrus (ITG), calcarine fissure and surrounding cortex, superior occipital gyrus (SOG), lingual gyrus, and bilateral cuneus. No significant FC changes were observed in other seed regions. Moreover, the changes in FC between the right NAc and the right ITG as well as SOG before and after rTMS were negatively correlated with changes in smoking scale scores. Our findings suggest that high-frequency L-DLPFC-rTMS reduces nicotine dependence and improves tobacco withdrawal symptoms, and the dysfunctional connectivity in reward circuitry may be the underlying neural mechanism for nicotine addiction and its therapeutic target.

The Independent Contribution of Positive and Negative Metacognitions About Smoking to Urge to Smoke, Withdrawal Symptoms and Dependence in Smoking-Dependent Men

Previous research has indicated that various factors, such as psychological distress, distress intolerance, anhedonia, impulsivity and smoking metacognitions, have been individually linked to the urge to smoke, withdrawal symptoms and dependence. However, these factors have not been collectively examined to determine whether smoking metacognitions independently and significantly contribute to these outcomes. Therefore, the aim of this study was to investigate the impact of distress intolerance, anhedonia, impulsivity and smoking metacognitions on the urge to smoke, withdrawal symptoms and dependency in men who are dependent on smoking. A total of 300 smoking-dependent men completed psychological scales and smoking-related measures. The findings of the study indicated that positive metacognitions about emotion regulation significantly predicted the urge to smoke, even when accounting for other significant predictors such as the number of daily cigarettes smoked, psychological distress, anhedonia and impulsivity. Furthermore, positive metacognitions about cognitive regulation were found to be a significant predictor of withdrawal symptoms, independent of other significant predictors such as psychological distress and the urge to smoke. Smoking dependence was predicted by negative metacognitions about uncontrollability beyond other significant predictors, including the number of daily cigarettes smoked and distress intolerance. These results highlight the role of metacognitions about smoking in both short- and long-term clinical outcomes related to smoking. Consequently, addressing such beliefs during treatment for smoking dependence should be an important therapeutic goal.

A systematic review of the relationship between generic and specific metacognitive beliefs and emotion dysregulation: A metacognitive model of emotion dysregulation

Although a probable association between metacognitive beliefs (also termed 'metacognitions') and emotion dysregulation has been suggested in the literature, the evidence is still sparse and inconclusive. The current study aims to present a comprehensive evaluation of the literature examining the association between metacognitive beliefs and emotion dysregulation. In accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) criteria, a search was conducted on PubMed and Ebsco. A manual search of reference lists was also run. Search terms were 'metacognitions/metacognitive beliefs/positive metacognitive beliefs/negative metacognitive beliefs/cognitive self-consciousness/beliefs about the need to control thoughts/cognitive confidence/negative beliefs about thoughts concerning uncontrollability and danger/AND difficulties emotion regulation/emotion dysregulation'. A total of 19 studies met the inclusion criteria. In both non-clinical and clinical populations, a higher endorsement of dysfunctional metacognitive beliefs was found to be associated with emotion dysregulation and vice versa. A higher endorsement of metacognitive beliefs may be associated, either directly or via maladaptive forms of mental control (e.g., worry, rumination and suppression) to emotion dysregulation. Metacognitive beliefs could be the potential therapeutic target in clinical interventions aimed at reducing emotion regulation difficulties.

Emotion dysregulation and Internet gaming disorder in young people: Mediating effects of negative affect and metacognitions

BACKGROUND

Recent studies have found that emotion dysregulation, negative affect, and metacognitions about online gaming are risk factors for Internet gaming disorder (IGD). However, few studies investigated the mechanisms underlying these interactions. The present study aimed to explore the relationships between emotion dysregulation and IGD, and the mediating effects of negative affect and metacognitions about online gaming.

METHODS

An online survey was conducted with young people (aged 10-24 years) who played video games. 1768 participants were included in this study. Observed variables, including emotion dysregulation, IGD, depression, anxiety, and metacognitions, were measured with self-report scales. Structural equation modeling (SEM) was used to analyze the relationships among the variables.

RESULTS

The results showed that emotion dysregulation positively predicted IGD through a fully mediated model which included the independent mediating effects of negative affect and metacognitions about online gaming and their sequential mediating effect. The model explained 76.1 % of the variance in IGD.

LIMITATIONS

This was a cross-sectional study which could not infer causality.

CONCLUSIONS

This study emphasizes that negative affect and metacognitions about online gaming mediate the effect of emotion dysregulation on IGD; moreover, metacognition may be a proximal factor of IGD. Thus, improving emotional regulation and modifying maladaptive metacognitions in young people may improve the prevention and treatment of IGD.

The role of desire thinking in the problematic use of social networking sites among adults

The problematic use of social networking sites (SNS) is associated with several psychiatric disorders. This behavior closely resembles addiction in terms of neurological basis and behavioral patterns. Nevertheless, successful intervention strategies and the etiology of problematic SNS use are not yet thoroughly investigated. We aimed to study whether desire thinking is associated with problematic SNS use among adults when controlling for some confounders, including boredom, affect, and impulsivity. With the help of convenience sampling, we enrolled 546 Turkish adults in this study to whom we administered a sociodemographic form, the Social Media Addiction Scale (SMAS), the Leisure Boredom Scale (LBS), the Positive and Negative Affect Schedule (PANAS), the Barratt Impulsiveness Scale (BIS-11), and the Desire Thinking Questionnaire (DTQ). To explore the association between the variables, we performed Pearson correlational and hierarchical regression analyses. The results showed that higher scores on two sub-dimensions of desire thinking, namely verbal perseveration and imaginal prefiguration, were associated with higher scores on problematic SNS use after we controlled for boredom, affect, and impulsivity. This study demonstrates that desire thinking may play a role in problematic SNS use among adults. We recommend targeting desire thinking as a potential area in treatments which may help alleviate problematic SNS use.

Difficulties in emotion regulation: The role of repetitive negative thinking and metacognitive beliefs

BACKGROUND

Using the Self-Regulatory Executive Function model as a basis, this study explored whether, in both general population and clinical samples, metacognitive beliefs and repetitive negative thinking (i.e., rumination and worry) are associated with higher levels of emotion dysregulation.

METHODS

395 participants from the general population and 388 outpatients seeking psychological treatment were recruited. Emotion dysregulation, metacognitive beliefs, rumination, worry, anxiety, depression, personality disorders were assessed. ANOVA and Welch's tests, correlation and path analyses were run.

RESULTS

Repetitive negative thinking was found to play a mediating role in the relationship between metacognitive beliefs and emotion dysregulation in both general population and clinical samples. Moreover, metacognitive beliefs were found to be directly associated to emotion dysregulation.

LIMITATIONS

The cross-sectional design.

CONCLUSIONS

Emotion dysregulation appears to be associated with the tendency to engage in repetitive negative thinking and metacognitive beliefs. Repetitive negative thinking and metacognitive beliefs could be a suitable therapeutic target to reduce difficulties in emotion regulation.

Validation of the metacognitions about online gaming scale (MOGS) among Chinese gamers

With the largest online gamer population worldwide and a heightened rate of Internet Gaming Disorder (IGD), China has a long-lasting need to identify salient correlates of IGD and provide corresponding assessment tools to support cost-effective IGD screening and interventions. To respond to such a need, the present study aimed to validate the Metacognitions about Online Gaming Scale (MOGS) among Chinese gamers to provide an additional tool for promoting studies investigating metacognition, a promising and newly emerged correlate of IGD, in China. To evaluate the psychometric properties of MOGS, we collected data from 1340 Chinese university students with gaming experiences (59.3% female, M_age = 19.84 years), in which 262 of them also participated in the one-month retest. Our results indicated that the Chinese version of MOGS has a two-factor structure and satisfactory reliabilities (α = 0.90 and 0.92, ICC = 0.60 and 0.64, AVE = 0.56 and 0.70, ρ_c = 0.88 and 0.92). Moreover, MOGS's convergent validity was evidenced by the expected, positive associations with generic metacognitions, stress, and IGD tendency (r (1338) = 0.29-0.55, p < 0.001) as well as significant MOGS differences between probable IGD and non-IGD gamers (p < 0.001). A 6-item, short-form MOGS, which displayed equivalent psychometric soundness as its full-scale counterpart, was also developed. As the first study to validate MOGS among Chinese gamers, the present study attested to the readiness of this measure in facilitating further studies of gaming-specific metacognitions for early identification of and tailored interventions for high-risk gamers in China.

Desire thinking as an underlying mechanism in alcohol use disorder and nicotine dependence

Desire thinking is an emerging construct in the addictive behaviours literature. No research, to date, has investigated its contribution to problematic alcohol use and nicotine dependence in patient samples when accounting for established predictors of addictive behaviours. The present study sought to clarify, in patient samples, the relative contribution of desire thinking in the associations between negative affect, impulsivity and thought suppression on the one hand and craving, problematic alcohol use and nicotine dependence on the other. To achieve this goal, two groups of individuals with alcohol use disorder (AUD) (n = 370; age range = 15-67 years) and nicotine dependence (n = 365; age range = 17-75 years) were selected, and measures of negative affect, impulsivity, thought suppression, craving, desire thinking, problematic alcohol use and nicotine dependence were completed by both groups. Results showed that in both groups, negative affect and thought suppression indirectly affected alcohol and nicotine craving, problematic alcohol use and nicotine dependence through the mediating role of desire thinking. The present study shows the independent role of desire thinking in predicting problematic alcohol use and nicotine dependence in patient samples, indicating its potential relevance for treatment.

The independent contribution of desire thinking to problematic social media use

In the present study, we investigated the role of desire thinking in problematic social media use (PSMU) whilst accounting for negative affect, impulsivity, and thought suppression. A sample of individuals with PSMU (n = 350) who used social media at least 8 h daily was recruited. Participants completed measures of negative affect, impulsivity, thought suppression, craving, desire thinking, and PSMU. Results indicated that negative affect, impulsivity, and thought suppression had significant indirect effects on craving and PSMU through the significant mediating role of desire thinking. The present study shows that desire thinking is an underlying mechanism linking established variables associated with PSMU (negative affect, impulsivity, and thought suppression) to craving and PSMU. Focusing efforts on the interruption of desire thinking may be beneficial to support individuals in disengaging from PSMU.