The relationship between caregivers’ gender equality norms and girls’ need satisfaction and self-esteem under conditions of resource scarcity

Motivation and Emotion - As key socialization figures in children’s lives, caregivers play an important role in the nurturing of children’s psychological needs. Parental conditional...     

Immediate and prolonged effects of cortisol, but not propranolol, on memory retrieval in healthy young men

BackgroundWhile acute cortisol administration has been found to impair retrieval of emotional memories in healthy subjects, the duration of this memory impairment is still unknown. Propranolol, on the other hand, may impair the reconsolidation of emotional memories during reactivation, although human studies examining such effects are scarce. The present investigation was therefore undertaken to examine the immediate and prolonged effects of a single administered dose of cortisol or propranolol on memory retrieval in a double-blind placebo controlled design.MethodsEighty-five healthy male participants were asked to retrieve previously learned emotional and neutral information after ingestion of 35 mg cortisol, 80 mg propranolol or placebo. After a washout period of 1 week, recall was again tested.ResultsMemory retrieval of neutral and emotional information was impaired by a single dose of cortisol compared to placebo. The memory impairment due to cortisol remained, even after a washout period of 1 week. No immediate or prolonged effects of propranolol on memory retrieval were found, despite significant reductions in sympathetic arousal.ConclusionsThese results lend support to the hypothesis that cortisol is able to attenuate (emotional) memory recall in men over longer time spans and may therefore augment the treatment of disorders like post-traumatic stress disorder and phobias, but do not clarify the mechanism(s) through which propranolol exerts its therapeutic effects.     

EMDR: eye movements superior to beeps in taxing working memory and reducing vividness of recollections

Posttraumatic stress disorder (PTSD) is effectively treated with eye movement desensitization and reprocessing (EMDR) with patients making eye movements during recall of traumatic memories. Many therapists have replaced eye movements with bilateral beeps, but there are no data on the effects of beeps. Experimental studies suggest that eye movements may be beneficial because they tax working memory, especially the central executive component, but the presence/degree of taxation has not been assessed directly. Using discrimination Reaction Time (RT) tasks, we found that eye movements slow down RTs to auditive cues (experiment I), but binaural beeps do not slow down RTs to visual cues (experiment II). In an arguably more sensitive “Random Interval Repetition” task using tactile stimulation, working memory taxation of beeps and eye movements were directly compared. RTs slowed down during beeps, but the effects were much stronger for eye movements (experiment III). The same pattern was observed in a memory experiment with healthy volunteers (experiment IV): vividness of negative memories was reduced after both beeps and eye movements, but effects were larger for eye movements. Findings support a working memory account of EMDR and suggest that effects of beeps on negative memories are inferior to those of eye movements.     

Working memory benefits creative insight, musical improvisation, and original ideation through maintained task-focused attention

Anecdotes from creative eminences suggest that executive control plays an important role in creativity, but scientific evidence is sparse. Invoking the Dual Pathway to Creativity Model, the authors hypothesize that working memory capacity (WMC) relates to creative performance because it enables persistent, focused, and systematic combining of elements and possibilities (persistence). Study 1 indeed showed that under cognitive load, participants performed worse on a creative insight task. Study 2 revealed positive associations between time-on-task and creativity among individuals high but not low in WMC, even after controlling for general intelligence. Study 3 revealed that across trials, semiprofessional cellists performed increasingly more creative improvisations when they had high rather than low WMC. Study 4 showed that WMC predicts original ideation because it allows persistent (rather than flexible) processing. The authors conclude that WMC benefits creativity because it enables the individual to maintain attention focused on the task and prevents undesirable mind wandering.     

Hiring Rankings of Immigrant Job Applicants: Immigrants’ Acculturation Strategies and Managers’ Personality Trait Perception

This study examines how non-Western immigrants' acculturation strategies are related to managers' hiring rankings. It examines whether hiring managers differ in personality trait inferences depending on whether the candidate is a Turkish immigrant or a native Norwegian. Managers (N?=?436) evaluated three job applicants in terms of personality and hirability. Across three experimental conditions, the information of one (target) was manipulated and presented as either a native, as an integrated Turkish immigrant, and as a separated Turkish immigrant. The separated Turkish target received lower hirability rankings compared with the other target applicants. The integrated Turkish target was rated as more open, extraverted, conscientious, agreeable, and neurotic than the two other targets. Personality ratings of the Norwegian and the separated Turkish target did not differ significantly. Evaluations of personality were associated with hiring ranking of the Norwegian target only.     

Academic performance differences among ethnic groups: do the daily use and management of time offer explanations?

This explorative study describes time use and time management behaviour of ethnic minority and ethnic majority students as possible explanations for the poorer study results of ethnic minority students compared to those of majority students. We used a diary approach in a small sample to examine students’ daily time use in both a lecture week and an exam week. Time management behaviour was measured in a questionnaire, as were demographic variables. The sample consisted of 48 full-time first-year university students of Business Administration of which 24 students belonged to a non-Western ethnic minority group. Student pairs (ethnic majority vs. non-Western ethnic minority) were fully matched by gender, socio-economic status, living situation and type of secondary education. Results showed that ethnic majority students earned higher grades compared to ethnic minority students. As regards time management behaviour, ethnic majority students appeared to have a stronger preference for organisation (e.g., leaving a clear study space at the end of a study day) than ethnic minority students. No differences between ethnic groups were revealed in setting goals and priorities (e.g., setting deadlines) and mechanics of time management (e.g., making to-do lists). Daily time use also appeared to be the same for both ethnic groups.     

The role of matching job resources in different demanding situations at work: A vignette study

This study examines human service employees' beliefs about the availability, relevance, and use of specific types of job resources (i.e. cognitive, emotional, and physical) in similar types of demanding situations at work. To gain a better understanding of these intra‐psychic processes assumed to underlie the relation between job demands, job resources, and job‐related outcomes, a quasi‐experimental survey study with vignettes was developed. Results showed that different patterns could be observed between the availability, relevance, and use of matching and non‐matching job resources in a physically demanding situation at work. No such differences were observed in a cognitively and emotionally demanding job. Further, it was shown that there generally seems to be a dominant role for emotional job resources in the job stress process, whereas the role of physical job resources and, to a lesser extent, cognitive job resources appears much weaker and mainly restricted to corresponding types of job demands. Finally, results suggested that employees who are faced with a particular type of job demands may take advantage of both matching and non‐matching job resources, implying that the ‘matching hypothesis’ is a probabilistic rather than a static principle.     

How to perform multiblock component analysis in practice

To explore structural differences and similarities in multivariate multiblock data (e.g., a number of variables have been measured for different groups of subjects, where the data for each group constitute a different data block), researchers have a variety of multiblock component analysis and factor analysis strategies at their disposal. In this article, we focus on three types of multiblock component methods—namely, principal component analysis on each data block separately, simultaneous component analysis, and the recently proposed clusterwise simultaneous component analysis, which is a generic and flexible approach that has no counterpart in the factor analysis tradition. We describe the steps to take when applying those methods in practice. Whereas plenty of software is available for fitting factor analysis solutions, up to now no easy-to-use software has existed for fitting these multiblock component analysis methods. Therefore, this article presents the MultiBlock Component Analysis program, which also includes procedures for missing data imputation and model selection.     

Intra-amygdala infusion of the protein kinase Mzeta inhibitor ZIP disrupts foreground context fear memory

Protein kinase Mzeta has been the subject of much recent interest, as it is the only molecule currently identified to maintain memory. Despite the wealth of studies investigating PKMζ in memory, questions remain about which types of memory PKMζ supports. Further, it is unclear how long the inhibitor of PKMz, ζ-pseudosubstrate inhibitory peptide (ZIP) remains in the brain after infusion. Here, we demonstrate that foreground context fear memory requires PKMζ activity in the amygdala. We also show that ZIP is fully cleared from the brain by 24h after infusion. These data contribute to a growing body of literature that demonstrates that PKMζ plays a key role in maintaining amygdala-dependent memory and provides new information about the degradation timecourse of the most commonly used inhibitor of PKMζ, ZIP.     

Are smokers interested in genetic testing for smoking addiction? A socio-cognitive approach

Genetic advances have made genetically tailored smoking cessation treatments possible. In this study, we examined whether smokers are interested in undergoing a genetic test to identify their genetic susceptibility to nicotine addiction. In addition, we aimed to identify socio-cognitive determinants of smokers' intention to undergo genetic testing. Following the protection motivation theory (PMT), we assessed the following constructs using an online survey among 587 smokers: threat appraisal (i.e. susceptibility and severity), fear, coping appraisal (i.e. response efficacy and self-efficacy), response costs and intention. In addition, knowledge, social norms and information-seeking behaviour were measured. Mean intention rates were 2.57 on a 5-point scale. Intention was significantly associated with threat appraisal and coping appraisal, as predicted by the PMT. Fear of the outcome was negatively associated with the intention to undergo genetic testing, but response costs, knowledge and social influence were not. Intention to undergo genetic testing in turn was positively related to seeking information about genetic testing and genetically tailored smoking cessation treatments. Smokers seem ambivalent or 'on the fence' with regard to undergoing a genetic test for smoking addiction. Socio-cognitive concepts such as susceptibility, severity, response efficacy and self-efficacy may be used to inform or educate smokers about the value of genetically tailored smoking cessation treatments.