Differences between risk perception and risk-taking are related to impulsivity levels

The Role of Psychosocial Factors in Youth Sexting: A Multi-Country Analysis of Risk Perception

PURPOSE

Using nationally representative surveys with internet-using children aged 12-17 across 13 countries in Eastern and Southern Africa and Southeast Asia, the study aimed to examine attitudinal factors associated with sexting-related risk perception and analyze the extent to which risk perception is correlated with sexting behavior.

METHODS

Multivariate linear regression with risk perception as the outcome variable was conducted. Slopes were plotted per country, with risk perception and sexting (having shared naked pictures or videos of self online in the past year) as the outcome, to examine the relationship between risk perception and sexting behavior across countries.

RESULTS

More risk-averse attitudes were consistently positively associated with risk perception in almost all countries. Plotted slopes of risk perception and sexting, in turn, showed that higher risk perception was associated with reduced sexting, with similar directionality across all countries. However, the levels varied, e.g., in Thailand and Cambodia, risk perception had a similar effect on sexting (same slope) but at substantially different levels: those who sext in Thailand still have higher concerns (risk perception = 4) than those who do not sext in Cambodia (risk perception = 3).

DISCUSSION

The finding that less restrictive attitudes and lower risk perception were correlated with sexting aligns with literature in the field, although the range of risk perception thresholds associated with sexting was noteworthy. The study provides some support for the importance of developing tailored approaches that take into consideration the psychological as well as contextual factors affecting sexting, as opposed to one-size-fits-all methods.

Grey matter morphometry in young adult e-cigarette users, tobacco cigarette users & non-using controls

Despite the rise in electronic cigarette use in recent years, the neurobiological effects of daily e-cigarette use versus smoking cigarettes in young adults remains unknown. This study aimed to investigate the impact of regular, exclusive e-cigarette use on grey matter morphometry in young adults, age 18-25. Structural MRI data were collected from 3 distinct groups of participants (n = 78): daily, exclusive e-cigarette users; tobacco cigarette users; and non-using controls, to assess grey matter volume (GMV) differences. Voxel-based morphometry revealed significant GMV reductions in tobacco cigarette users in the left fusiform gyrus (FG), left and right inferior temporal gyrus (IFG), right middle temporal gyri, and right middle cingulate gyrus (MCG), compared to controls, as well as the anterior cingulate cortex (ACC), compared to both e-cigarette users and controls, even after adjusting for nicotine exposure history. Partial correlation analyses revealed that in tobacco cigarette users, GMV in the FG, ITG, MTG, and MCG displayed a strong, negative association with exposure history but not with nicotine dependence. GMV of the ACC was not associated with duration of use or nicotine dependence score, suggesting distinct relationships between ACC volume and smoking status and FG/ITG/MTG/MCG volume and smoking status. This indicates a distinct difference between regular tobacco cigarette and e-cigarette use, perhaps a relatively safer profile of e-cigarette use on GMV. These findings suggest that factors beyond nicotine, such as other toxicants in tobacco cigarette smoke, may contribute to the observed brain atrophy, or imply potential pre-existing vulnerabilities that might predispose individuals to take up smoking.

Risky behavior in virtual reality: The roles of personality, environment, and physiology

Virtual reality (VR) provides a unique opportunity to simulate various environments, enabling the observation of human behavior in a manner that closely resembles real-world scenarios. This study aimed to explore the effects of anticipating reward or punishment, personality traits, and physiological arousal on risky decision-making within a VR context. A custom VR game was developed to simulate real-life experiences. The sample comprised 52 students (63.46% female) from the University of Novi Sad, Serbia. The study assessed four parameters within the VR environment: elapsed game time, number of steps taken, average score, and decision-making time. Three physiological signals, heart rate, skin conductance, and respiratory rate, were recorded. Results indicated that personality traits, specifically Fight (β = -0.33, p = 0.024) and Freeze (β = 0.431, p = 0.009), were significantly related to behavior in the VR environment (R = 0.572, R2_adj = 0.227, RMSE = 23.12, F(6, 40) = 3.25, p = 0.011). However, these effects were not significant after negative feedback. Emotional arousal, measured by respiratory rate amplitude (β = 0.276, p = 0.045), showed a more pronounced role after feedback (β = 0.337, p = 0.028). These findings indicate that personality traits primarily influence behavior in a VR environment prior to the actual threat, whereas environmental characteristics become more important afterwards. The results offer valuable insights for experimental and personality psychologists by revealing how risk-taking is influenced by situational, emotional, and personality factors. Additionally, they provide guidance for VR designers in creating more ecologically valid environments, highlighting VR's potential as a tool for psychological research, while also underscoring the critical importance of selecting objective VR measures to accurately capture the complexities of human behavior in immersive environments.

Motor impulsivity and spicy food craving: A mediation analysis of insula-based resting state functional connectivity

In China, the rate of spicy food consumption is rising, and chili pepper is among the most popular spicy foods consumed nationwide. However, little effort has been made to understand the mechanism behind spicy food craving. This exploratory study aimed to investigate differences in insula-based resting state functional connectivity (rsFC) between spicy food cravers and non-cravers, and the association between rsFC, impulsivity and spicy food craving. A group of extreme cravers (n = 49) and a group of age- and sex-matched non-cravers (n = 46) completed a resting-state fMRI scan, during which participants were instructed to keep their eyes closed, to not think of anything in particular, and to remain awake. Participants completed the Spicy Food Craving Questionnaire, Barratt Impulsiveness Scale, Sensation Seeking Scale and Positive and Negative Affect Schedule, and rated the frequency of spicy food intake. Results revealed increased insula-occipital lobe resting-state functional connectivity in individuals with spicy food cravings, and the positive correlations between insula-middle occipital gyrus rsFC, impulsivity and spicy food craving. Specifically, the insula-middle occipital gyrus rsFC strength mediated the relationship between the motor impulsivity and spicy food craving. It is hoped that our exploratory findings may shed new insights into the neural mechanisms of spicy food craving and motivate further exploration of spicy food craving in diverse contexts and cultures.

Does risk-taking or alcohol misuse mediate the association between anger and suicidal ideation in male depression?

Anger is among the core symptoms in male-specific inventories of depression and has consistently been linked with suicidal ideation. In this study, we assessed whether this link may be mediated via other prominent symptoms of depression in men, namely risk-taking and alcohol misuse. We used self-reported data from 322 men responding to a 3-wave survey over 6 months. Regression with mediation analysis was employed to test whether anger at baseline predicted suicidal ideation six months later through the mediating effects of risk-taking or alcohol misuse at 3 months. We found a statistically significant indirect effect (indicating a mediation effect) of anger at baseline on suicidality at 6-months follow-up through risk taking at 3-months follow-up (effect = 0.007, SE = 0.003, 99% Confidence interval = 0.0002 to 0.0161). Anger at baseline was not significantly associated with alcohol misuse at 3-months follow-up (β = .062, t = 0.919, p = .358), thus nullifying alcohol misuse as a possible mediator between anger and suicidal ideation. In conclusion, the results of this study suggest that risk-taking, but not alcohol misuse, may be a mediator between anger and suicidal ideation in the context of male depression. If these results are replicated, assessing anger and risk-taking may inform monitoring of suicidality. Also, anger and risk-taking may be promising targets for treatment aimed at reducing the risk of suicide.

Application of the extended theory of planned behavior in predicting the behavioral intentions of Iranian local communities toward forest conservation

Natural forests are the habitat of many plant and animal species and are the main source of genetic reserves. In addition to preserving biodiversity, forests play an important role in the livelihood and income of many indigenous communities. But, in the last few decades, due to the lack of proper management of the beneficiaries, they have been exposed to destruction, so that their protection requires the participation of all members of the society, especially the local people. Therefore, the main goal of this research was to discover the determinant factors on the intention of local communities to protect forests in Iran. An extended theory of planned behavior (TPB) by adding the variables of "risk perception" (RP) and "sense of belonging to place" (SBP) was used as the theoretical framework of the research. This research was done using the questionnaire survey method and with the help of structural equation modeling (SEM). The statistical population of this study included all the rural communities living in the Arasbaran forests (located in the northwest of Iran). The research findings indicated that the original TPB explains 66.9% of the variance of the behavioral intentions of locals toward forest protection. The three main constructs of the original TPB included attitude, perceived behavioral control (PBC) and subjective norms (SN), all of which had positive effects on the intention of local communities. Most importantly, the extended TPB by including RP and SBP increases the ability of the model to explain the intentions of local communities to forest protection by 11.8%. In this study, the variable of RP was identified as the most important factor, so it is suggested to the policy-makers of this field to increase the RP of local communities in relation to forest destruction using communication media. It is also suggested to promote safe behaviors in these natural areas through developing forest protection organizations and properly training locals on the protection of forest areas.

HIV risk perception and sexual behavior among HIV-uninfected men and transgender women who have sex with men in sub-Saharan Africa: Findings from the HPTN 075 qualitative sub-study

There remains a limited understanding of how men who have sex with men (MSM) and transgender women (TGW) in sub-Saharan Africa (SSA) perceive their risk for HIV and how risk influences behavior during sexual interactions. We performed thematic analysis on in-depth interviews from the qualitative sub-study of HPTN 075 in Kenya, Malawi, and South Africa. Using the Integrated Behavioral Model (IBM) constructs, we found that most MSM and TGW perceived themselves to be at risk for HIV, leading them to regularly engage in safer sexual behaviors. Notably, even though these MSM and TGW perceived themselves to be at risk for HIV, some of them reported engaging in transactional sex, sex under the influence of alcohol, and intentional non-use of condoms. This indicates that HIV risk perception was not always associated with safer sexual behaviors or a reduction in risk behaviors. Attitudes (negative attitudes toward condom use), perceived norms (social pressures), and environment constraints (contextual barriers) were related to MSM and TGW not engaging in safe sexual behavior. Hearing the perspectives of MSM and TGW on their sexual behavior continues to be important for the development and implementation of effective prevention policies and interventions. Eliminating structural barriers such as stigma, discrimination, and criminalization of same-sex sexuality is a crucial prerequisite for the success of interventions to promote sexual health among MSM and TGW in SSA.