Virtual reality (VR) technology has been used to learn skills for decades. While no standardized measure exists for learning outcomes in VR training, commonly explored outcomes are immersion, sense of presence and emotions. In this paper, the objective was to investigate these outcomes in two VR conditions, immersive and desktop in a randomized controlled trial with a parallel design. The sample consisted of 134 university students (70 women, mean age 23 years, SD = 2.99). These were randomized using a covariate-adaptive randomization procedure based on stratification by gender into two interventions; play out a VR scenario in either desktop (control group) or immersive VR (intervention group). The setting was a university lab. There was a significant within subject effect for positive affect and a significant between-group effect for the immersive compared to desktop VR groups. Positive affect was reduced after interacting with the VR scenario in both the immersive and desktop versions, however, positive affect was overall higher in the immersive, compared to the desktop version. The results show higher scores for sense of presence (d = 0.90, p < 0.001) and positive affect pre- and post-scenario in the immersive VR condition (d = 0.42, p = 0.017 and d = 0.54, p = 0.002) compared to the desktop condition. Immersive VR may be beneficial in higher education as it promotes high levels of sense of presence as well as positive emotions. When it comes to changing the immediate emotions of the students, type of VR does not seem to matter. The project was funded by the Norwegian Directorate for Higher Education and Skills.

The effects of mild–moderate partial sleep deprivation on affective and cognitive functioning were evaluated in a naturalistic home environment, mimicking short sleep typically caused by demands from work or society. A total of 52 healthy individuals aged 18–35 was included in an 11-day study protocol. Participants slept at home, and sleep patterns were observed using actigraphs and sleep diaries. After maintaining habitual sleep for 7 days, the participants were asked to sleep 2 hours less than their average sleep duration for the last three nights of the study protocol. A not-X continuous performance test was administered at 9 am (± 90 minutes) on days 1, 4, 8 (habitual sleep), 9 and 11 (sleep deprivation). Performance-based measures included response accuracy and speed. Participant-reported measures included how well the participants felt they performed and how exhausted they were from taking the test, as well as positive and negative affect. There was a significant change in reaction time, number of commission errors, subjective performance, subjective exertion, and positive affect across the visits. Specifically, there was a linear decrease in reaction time, performance, and positive affect throughout the study, and a significant quadratic trend for commissions and exertion (first decreasing, then increasing after sleep deprivation). The univariate tests for omissions and negative affect were not significant. We conclude that sleeping 1.5–2 hours less than usual leads to faster response speed, but more commission errors and decreased positive affect. This indicates that individuals become more impulsive and experience less positive affect after a period of short sleep.

Life satisfaction and its relationship to aspects of sleep were investigated in 701 Norwegian university students using recreated sleep logs, questions about sleep-related experiences, a sleep quality item and the Satisfaction with Life Scale. The results indicated that better sleep quality, longer mean sleep duration, less variability in sleep duration and less variability in rise time were all associated with greater life satisfaction, but only sleep quality and variability of sleep duration were significant predictors of life satisfaction in a regression model. Consistent with previous research, the results emphasize the importance of sleep quality, and adds to existing research by suggesting that in some populations, variability of sleep duration might be more relevant to well-being than sleep duration itself.

Objective: Anxiety and depression have been linked to increased risk of cardiovascular disease (CVD). Whether anxiety is a risk factor independent from depression, and if associations are limited to specific CVD outcomes remains unclear. Design: Participants (N = 3135) of the prospective Osteoporotic Fracturs in Men Sleep ancillary study were community-dwelling men (age ≥ 65) living in the US. Main outcome measures: The Goldberg Anxiety and Depression Scales, coronary heart disease (CHD) and cerebrovascular disease (CER). We used Cox proportional hazards models to calculate adjusted hazard ratios and 95% confidence intervals. Results: During 12 years of follow-up, we accrued 612 cases of CHD and 291 cases of CER (incident or repeat-event). Overall, we observed no association between anxiety or depression and CER. Anxiety was significantly associated with CHD, but this effect was attenuated after controlling for depression and covariates. Depression was significantly associated with CHD after similar adjustments. For men without prior history of CVD, neither anxiety nor depression were associated with incident CHD. Conclusions: Anxiety was not a significant independent predictor of CHD or CER, suggesting that previous findings of anxiety as a risk factor of CVD might be attributed to failure to control for the effect of depression.

The aim of this study was to investigate the relations between underlying dimensions of burnout (ie exhaustion, mental distance, cognitive impairment and emotional impairment) and sleep reactivity in occupations that maintain critical societal functions during the COVID-19 pandemic. Sleep reactivity refers to the vulnerability of experiencing sleep disturbances during stressful and challenging situations, and manifests as difficulties with falling and staying asleep. Previous research has highlighted the importance investigating psychological factors that may influence or trigger vulnerability to stress induced sleep problems, including factors at work. Longitudinal self-report data was collected using an online survey administered to Norwegian workers employed in health care, education, social services, emergency services and other sectors with critical tasks during the COVID-19 pandemic at two different time points three months apart. The sample in the present study (N = 1331) consisted of 76% females and 24% males with a mean age of 44 years. The results showed that work-related exhaustion measured at baseline was the strongest symptom of burnout associated with higher sleep reactivity three months later, followed by emotional impairment. Mental distance and cognitive impairment at work were not associated with sleep reactivity, indicating that these burnout dimensions have less of an impact on sleep than exhaustion and emotional impairment. Work-related exhaustion and emotional impairment can lower the individual's tolerance to perceiving events as stressful as well as reinforce the stress response, and contribute to difficulties with initiating and/or maintaining sleep. Workers employed in occupations with critical tasks during the pandemic may be more susceptible to exhaustion, emotional strain and poorer sleep due to increased and prolonged work pressure. Organizational and individual measures that can decrease stress and increase coping should be offered to employees working in high-stress conditions.

This study investigated how proactive and reactive cognitive control processing in the brain was associated with habitual sleep health. BOLD fMRI data were acquired from 81 healthy adults with normal sleep (41 females, age 20.96–39.58 years) during a test of cognitive control (Not-X-CPT). Sleep health was assessed in the week before MRI scanning, using both objective (actigraphy) and self-report measures. Multiple measures indicating poorer sleep health—including later/more variable sleep timing, later chronotype preference, more insomnia symptoms, and lower sleep efficiency—were associated with stronger and more widespread BOLD activations in fronto-parietal and subcortical brain regions during cognitive control processing (adjusted for age, sex, education, and fMRI task performance). Most associations were found for reactive cognitive control activation, indicating that poorer sleep health is linked to a “hyper-reactive” brain state. Analysis of time-on-task effects showed that, with longer time on task, poorer sleep health was predominantly associated with increased proactive cognitive control activation, indicating recruitment of additional neural resources over time. Finally, shorter objective sleep duration was associated with lower BOLD activation with time on task and poorer task performance. In conclusion, even in “normal sleepers,” relatively poorer sleep health is associated with altered cognitive control processing, possibly reflecting compensatory mechanisms and/or inefficient neural processing.