Meaning in Life Moderates Relations between Personality and Temperament and Nonsuicidal Self-Injury in Hospitalized Adolescents.

Previous research indicates that sensation seeking, emotion dysregulation, and impulsivity are predictive of non-suicidal self-injury (NSSI). A body of research supports that meaning in life predicts improved mental health and well-being, including fewer suicidal thoughts and attempts, yet no research has examined the moderating effects of meaning in life on the relations between personality and temperament and NSSI. Given the growing incidence rates of NSSI among adolescents and the potential lifelong consequences of NSSI, it is imperative to better understand the factors that reduce the rates at which adolescents in a clinical sample engage in NSSI. The present study investigates if the protective factors of meaning in life moderate the relation between personality and temperament variables and NSSI among 126 adolescents (71% female, Mage = 16.1, SD = 1.1, range 13-18, 80% White) residing in an inpatient psychiatric hospital who endorsed NSSI in the last 12 months. Results from hurdle modeling indicate that two subtypes of meaning in life, presence of meaning in life and search for meaning of life, may serve as robust protective factors against engagement in NSSI among a clinical sample of adolescents. Additionally, results suggest that search for meaning, but not presence of meaning in life, variables moderate the relations between personality and temperament and NSSI. Results provide evidence that meaning in life is an understudied variable of importance in understanding how to prevent or treat NSSI. It also underscores the need to develop, refine, and test meaning-making interventions.

Sensation seeking and nonsuicidal self-injurious behavior among adolescent psychiatric patients.

The Benefits and Barriers model of NSSI postulates that engagement in NSSI is positively reinforced by potent benefits, however there are a host of barriers to engagement, any one of which is salient enough to prevent engagement. It is possible that individual differences in sensation seeking, a trait that describes optimal level of positive reinforcement, may alter the balance between the benefits and barriers of engagement in NSSI. There are significant associations between engagement in NSSI and sensation seeking in college undergraduates, a population with disproportionately high rates of NSSI. However, it is unclear whether these traits play a similar role in adolescents. We expected that higher levels of sensation seeking would positively relate to any NSSI history, lifetime frequency of NSSI, and earlier age at onset of NSSI among a sample of 200 adolescents in a psychiatric hospital. Consistent with previous research, results indicated that females were more likely to engage in NSSI than males. Additionally, increased sensation seeking was associated with greater likelihood of ever engaging in NSSI and a greater number of different NSSI methods tried. Though we expected sensation seeking would be significantly related to lifetime NSSI frequency and earlier onset of NSSI, it was not. Findings suggest that individual differences may alter relations between the benefits and barriers of NSSI and that measuring sensation seeking in adolescents, especially females, and especially those experiencing psychological distress, may identify those at highest risk for engaging in NSSI and may allow for targeted intervention with these individuals.

Who takes the trip? Personality and hallucinogen use among college students and adolescents.

Research examining hallucinogen use has identified potential benefits, as well as potential harms, associated with use. The acute effects of hallucinogen use can be intense, disorienting, cognitively impairing, and may result in perceptual changes mimicking aspects of temporary psychosis. Hallucinogen use may also lead to the onset of more chronic issues, such as Hallucinogen Persisting Perception Disorder, which impairs daily functioning even when sober. However, research on factors that predict who will misuse hallucinogens is an understudied area. In particular, while sensation seeking, impulsivity, and emotion dysregulation have all been shown to be predictive of problematic substance misuse, there is almost no research on how these personality variables predict hallucinogen use. The present study assessed how these personality traits predicted hallucinogen use in a sample of college undergraduates (N = 10,251) and a sample of adolescents in an inpatient residential psychiatric hospital (N = 200). Results indicated that facets of sensation seeking, impulsivity, and emotion dysregulation positively predicted ever having used hallucinogens, earlier initiation of use, and lifetime use among college students. Findings also indicated that facets of sensation seeking, impulsivity, and emotion dysregulation positively predicted having ever used hallucinogens in the adolescent inpatient sample. Results highlight the need for more research on who is likely to misuse hallucinogens. If confirmed in future research, the findings presented herein indicate viable personality variables as predictors. This is especially important as there has been a recent explosion of research on the positive benefits of therapeutic hallucinogen use.

Characterisation of the volatile profile of coconut water from five varieties using an optimised HS-SPME-GC analysis.

BACKGROUND: Coconut (Cocos nucifera L.) water is a refreshing tropical drink whose international market has recently been growing. However, little is yet known about its physicochemical composition, particularly its aroma. This study set out to characterise the volatile profile of water from five coconut varieties. RESULTS: Aroma compounds were characterised by headspace solid phase microextraction gas chromatography (HS-SPME-GC) analysis. An experimental design was established to optimise SPME conditions, leading to an equilibration time of 10 min followed by an extraction time of 60 min at 50 °C. Accordingly, immature coconut water from WAT (West African Tall), PB121 (MYD × WAT Hybrid), MYD (Malayan Yellow Dwarf), EGD (Equatorial Guinea Green Dwarf) and THD (Thailand Aromatic Green Dwarf) palms was analysed and described. Ketones were mainly present in the Tall and Hybrid varieties, whereas aldehydes were most abundant in the Dwarf palms. Tall coconut water was characterised by a high lactone content. THD exhibited a high ethyl octanoate level. The cluster analysis of the volatile fraction from the five coconut cultivars was found to be related to their genetic classification. CONCLUSION: The volatile compounds of immature coconut water from five varieties were characterised for the first time. Volatile profile analysis could be a useful tool for the selection of Dwarf coconut varieties, which are mainly consumed as a beverage.