What are sleep-related experiences? Associations with transliminality,psychological distress,and life stress

Sleep-related experiences [Watson, D. (2001). Dissociations of the night: Individual differences in sleep-related experiences and their relation to dissociation and schizotypy. Journal of Abnormal Psychology, 110, 526-535] refer to a host of nocturnal altered-consciousness phenomena, including narcoleptic tendencies, nightmares, problem-solving dreams, waking dreams, and lucid dreams. In an attempt to clarify the meaning of this construct, we examined cross-sectional and longitudinal associations of sleep-related experiences (SREs), altered-consciousness tendencies (i.e., dissociation and transliminality), psychological distress, childhood maltreatment (i.e., abuse and neglect), and life stress in young adults. Both types of SREs (general SREs and lucid dreaming) were found to be distinguishable from altered-consciousness tendencies. Transliminality emerged as a longitudinal predictor of both general SREs and lucid dreams. Psychological distress and an increase in life stress predicted an increase in general SREs over a 3-month interval. We conclude that transliminality is a general altered-consciousness trait that accounts for some of the individual differences in sleep-related experiences, and that general sleep experiences are an outcome of psychological distress and life stress.     

Sleep facilitates consolidation of positive emotional memory in healthy older adults

ABSTRACT

Evidence has demonstrated that sleep-related memory consolidation declines in ageing. However, little is known about age-related changes to sleep-related emotional memory consolidation, especially when considering the positivity effect observed in older adults. In the present study, we sought to explore whether there is a positive emotional bias in sleep-related memory consolidation among healthy older adults. Young and older adults were randomly assigned either into a sleep or wake condition. All participants encoded positive, negative, and neutral stimuli and underwent recognition tests immediately (test 1), after a 12-hour sleep/wake interval (test 2), and 3 days after test 2 (test 3). Results showed that age-related differences of sleep beneficial effect were modulated by emotion valence. In particular, sleep selectively enhanced positive memory in older adults, while in young adults sleep beneficial effect was manifested in neutral memory. Moreover, the sleep beneficial effect can be maintained at least 3 days in both young and older adults. These findings suggest that older adults had preserved but positive bias of sleep-related memory consolidation, which could be one of the underlying mechanisms for their generally better emotional well-being in daily life. These findings highlight the dynamic interplay among sleep and emotional memory in older adults.     

Dispositional mindfulness,insomnia, sleep quality and dysfunctional sleep beliefs in post-treatment cancer patients

Dispositional mindfulness, or the tendency to be more mindful in daily life, has been associated with better psychological functioning and reduced overall distress. This study investigated the degree to which dispositional mindfulness was associated with sleep disturbances in cancer patients with insomnia. Further, we examined whether levels of mindfulness moderated the relationship between stress levels, mood disturbance, insomnia severity, sleep quality and dysfunctional sleep beliefs. Participants (N = 111) were adults who had been previously treated for cancer and currently met diagnostic criteria for insomnia. Higher levels of acting with awareness, non-judging and non-reacting were associated with better sleep and psychological outcomes. Despite these significant associations, mindfulness facets did not significantly moderate the relationship between stress, mood and sleep outcomes. This negative finding raises the possibility that increased mindfulness may not act directly to improve psychological outcomes, but rather through a series of other cognitive and affective changes. Our results emphasize the importance of addressing mood symptoms and stress appraisals as predictors of sleep disturbance in cancer patients.     

Patterns of Daily Time Use of Young Adults With or Without First-Episode Psychosis

This study compared patterns of daily activities and satisfaction with time use of young adults with first-episode psychosis and healthy volunteers. Fifty young adults participated in retrospective structured interviews on time use. Young adults with first-episode psychosis spend more time in sleep, passive leisure, and personal care activities, and less in total productive activities and education. No difference appeared for leisure, paid work, and household work, or satisfaction with daily time use. Reasons underlying dissatisfaction with daily time use differed between the groups. Clinical and research implications are discussed.     

Positive daily experiences can buffer the negative effects of daily stress: A conceptual replication

The present study replicates previous research demonstrating that daily positive events can buffer the effects of daily stress on well-being. The present study differs from previous research in two ways. First, we examined buffering effects among a sample of adults residing in the community. Previous research studied student samples. Second, we measured daily stress more directly (reports of events) than in previous studies (checklists). The present study replicated key findings from previous research. Within-person relationships between daily stress and daily well-being were weaker on days when daily events were more positive than on days when they were less positive. The results support the contention that positive daily experiences can buffer the negative effects of daily stress on daily well-being.     

The interplay between relationship effectiveness,life stress,and sleep: A prospective study

Research has shown that greater stress responses predict worse sleep and that the quality of one's current romantic relationship predicts one's sleep. Despite these established links, research has not examined connections between ongoing patterns of interpersonal experiences and competencies (relationship effectiveness) and stress exposure on sleep. Participants in the Minnesota Longitudinal Study of Risk and Adaptation (MLSRA) completed measures assessing relationship effectiveness and stress exposure at ages 23 and 32 years, as well as sleep quality/duration at age 37 years. Analyses demonstrate that relationship effectiveness at age 23 years positively predicts sleep quality—but not sleep duration—at age 37 years via reduced stress exposure at age 32 years. These findings highlight the effects of relationship effectiveness and stress exposure across early to middle adulthood on sleep.     

Intraindividual coupling of daily stress and cognition

Most psychological theories predict associations among processes that transpire within individuals. However, these theories are often tested by examining relationships at the between-persons (BP) rather than the within-persons (WP) level. The authors examined the WP and BP relationships between daily stress and daily variability in cognitive performance. Daily stress and cognitive performance were assessed on 6 occasions in 108 older adults and 68 young adults. WP variability in stress predicted WP variability in response times (RTs) on a 2-back working memory task in both younger and older adults. That is, RTs were slower on high-stress days compared with low-stress days. There was evidence of an amplified WP stress effect in the older adults on a serial attention task. There was no evidence of stress effects on simple versions of these tasks that placed minimal demands on working memory. These results are consistent with theories that postulate that stress-related cognitive interference competes for attentional resources.     

Ageism,Sensation-Seeking,and Risk-Taking Behavior in Young Adults

The research investigated the relationships among ageism, sensation-seeking, and risk-taking in young adults. Recent research has shown that young adults reporting higher levels of ageist attitudes and ageist behaviors also report higher levels of risk-taking in daily life than those with less ageist attitudes and behaviors (Popham et al. in press). The results are consistent with terror management theory; young adults may attempt to buffer their death anxiety by seeking out experiences that make them feel strong and invulnerable (i.e., taking risks). In contrast, prior research has shown that there is a link between risk-taking and sensation-seeking and that individuals may be biologically predisposed to be high sensation-seekers (Zuckerman Behavioural and Brain Sciences 7:413–471, 1984; Neuropsychobiology 13:121–128, 1985). In a study with 475 undergraduates, we investigated the relationships among ageism, sensation-seeing, and risk-taking behavior. The results showed that ageist behavior and two dimensions of sensation-seeking (i.e., Disinhibition and Experience Seeking) were significant predictors of risk-taking. Implications for practical approaches to reduce risk-taking in young adults are discussed.     

How can mindfulness be promoted? Workload and recovery experiences as antecedents of daily fluctuations in mindfulness

While previous work on mindfulness has focused predominantly on the benefits of mindfulness and of mindfulness interventions, the present article addresses the question of how natural experiences of mindfulness can be promoted in the context of work. Accordingly, this article sheds light on day‐to‐day fluctuations in workload and recovery experiences (psychological detachment and sleep quality) as antecedents of state mindfulness. Furthermore, this study extends extant research that has documented beneficial effects of mindfulness on subsequent recovery experiences by arguing that the relationship between mindfulness and recovery experiences is reciprocal rather than unidirectional. Using an experience‐sampling design across five workdays and involving three daily measurement occasions, we found that sleep quality and workload were related to subsequent levels of mindfulness. While not displaying a significant direct relationship with mindfulness, psychological detachment was indirectly related to mindfulness via sleep quality. Fatigue was identified as an important mechanism explaining these relationships. Furthermore, findings confirmed that the relationship between mindfulness and recovery experiences is reciprocal rather than unidirectional. Taken together, this study contributes to an enriched understanding of the role of mindfulness in organizations by shedding light on factors that precede the experience of mindfulness and by pointing to the existence of gain spirals associated with recovery experiences and mindfulness.

Practitioner points

• Organizations seeking to promote mindfulness among their workforce should try to keep workload to a manageable degree.
• Organizations may also pay attention to care for employees' day‐to‐day recovery as it has been shown to facilitate mindfulness.

     

Near-death experiences and the temporal lobe

Abstract— Many studies in humans suggest that altered temporal lobe functioning, especially functioning in the right temporal lobe, is involved in mystical and religious experiences. We investigated temporal lobe functioning in individuals who reported having transcendental "near-death experiences" during life-threatening events. These individuals were found to have more temporal lobe epileptiform electroencephalographic activity than control subjects and also reported significantly more temporal lobe epileptic symptoms. Contrary to predictions, epileptiform activity was nearly completely lateralized to the left hemisphere. The near-death experience was not associated with dysfunctional stress reactions such as dissociation, posttraumatic stress disorder, and substance abuse, but rather was associated with positive coping styles. Additional analyses revealed that near-death experiencers had altered sleep patterns, specifically, a shorter duration of sleep and delayed REM sleep relative to the control group. These results suggest that altered temporal lobe functioning may be involved in the near-death experience and that individuals who have had such experiences are physiologically distinct from the general population.     

Daily activities and sleep quality in young adults

Daily activity levels were investigated as related to sleep quality in young adult college students aged 18 to 30 years. 85 participants (20 men, 65 women) completed the Young Adult Daily Activity Scale (YADAS). This 37-item checklist has 34 items based on focus group discussion points of college students' typical daily activities and three blank items for students to include their daily activities if not in the listing. The tabulation of type and amount of waking daily activities represents a unique measurement of factors that may affect sleep quality. The participants also rated their typical sleep quality using a standard 5-point scale (low indicating poor sleep). Correlations of sleep ratings and activities were not significant.     

Vicarious Experiences of Major Discrimination and the Life Satisfaction of Black and White Adults from a Community Sample

The racism-related stress framework argues that racism can influence the well-being of individuals through personal and vicarious experiences of discrimination, but studies on racism and health have primarily focused on understanding how personally experienced discrimination shapes these outcomes. Using data from the Nashville Stress and Health Study (N?=?1,252) the present study examines the racial differences in vicarious experiences of major discrimination among Black and non-Hispanic White adults from a community sample. Additionally, given longstanding evidence of racial disparities in life satisfaction, this study assesses whether the effects of vicarious experiences of discrimination influence overall life satisfaction of both Black and White adults. Results reveal significant racial differences in the types of vicarious discrimination that both groups are exposed to, and that Black adults are more exposed to vicarious experiences of major discrimination relative to White adults. Furthermore, findings indicate that vicarious experiences of discrimination, in addition to personal experiences of discrimination, are associated with lower levels of overall life satisfaction among Black adults, but not for White adults. This study extends the broader literature on racism-related stress and offers new insights for understanding racial differences in overall life satisfaction and well-being.

     

Do young adults show conceptual knowledge of previous distractors?

Using implicit tests, older adults have been found to retain conceptual knowledge of previously seen task-irrelevant information. While younger adults typically do not show the same effect, evidence from one study [Gopie, N., Craik, F. I. M., & Hasher, L. (2011). A double dissociation of implicit and explicit memory in younger and older adults. Psychological Science, 22, 634–640. doi:10.1177/0956797611403321] suggests otherwise. In that study, young adults showed greater explicit than implicit memory for previous distractors on a word fragment completion task. This was interpreted as evidence for maintaining access to previous conceptual knowledge of the distractors. Here, we report two failures to replicate that original finding, followed by a third study designed to test directly whether young adults use conceptual-level information that was previously irrelevant. Our findings agree with others that young adults show weak to no evidence of conceptual knowledge of previously irrelevant information.     

大学生压力和睡眠质量：反刍思维和心理韧性的链式中介作用

采用大学生压力量表、反刍思维量表、青少年心理韧性量表和匹兹堡睡眠指数量表调查684位大学生(被试平均年龄为20.26岁;SD = 1.08),探讨反刍思维和心理韧性在压力和睡眠质量之间的链式中介作用。结果表明：(1)压力对睡眠质量有显著的负向预测作用;(2)压力可通过反刍思维和心理韧性的独立中介作用及反刍思维和心理韧性的链式中介作用间接预测睡眠质量。本研究揭示了压力和睡眠质量的关系及作用机制,深化了大学生压力对睡眠质量影响的研究。     

Fibromyalgia: the role of sleep in affect and in negative event reactivity and recovery

OBJECTIVE: Fibromyalgia (FM) syndrome is a chronic pain condition characterized by diffuse muscle pain, increased negative mood, and sleep disturbance. Until recently, sleep disturbance in persons with FM has been modeled as the result of the disease process or its associated pain. The current study examined sleep disturbance (i.e., sleep duration and sleep quality) as a predictor of daily affect, stress reactivity, and stress recovery. DESIGN AND MEASURES: A hybrid of daily diary and ecological momentary assessment methodology was used to evaluate the psychosocial functioning of 89 women with FM. Participants recorded numeric ratings of pain, fatigue, and positive and negative affect 3 times throughout the day for 30 consecutive days. At the end of each day, participants completed daily diary records of positive and negative life events. In addition, participants reported on their sleep duration and sleep quality each morning. RESULTS: After accounting for the effects of positive events, negative events, and pain on daily affect scores, it was found that sleep duration and quality were prospectively related to affect and fatigue. Furthermore, the effects of inadequate sleep on negative affect were cumulative. In addition, an inadequate amount of sleep prevented affective recovery from days with a high number of negative events. CONCLUSIONS: These results lend support to the hypothesis that sleep is a component of allostatic load and has an upstream role in daily functioning.     

Unwanted attention: The psychological impact of cyberstalking on its survivors

This exploratory study investigated experiences of cyberstalking by analysing the psychological impact on young adult users (n = 12; females = 9). The participants completed in-depth e-mail interviews documenting their lived experiences as cyberstalking survivors. The data were thematically analysed. The findings indicate that young adults who have experienced cyberstalking report a wide-ranging psychological impact on them; including feelings of stress, hurt, paranoia, insomnia, betrayal, anger, fear, and in some cases even depression. These findings advocate the need for tailored interventions to alleviate the impact on cyberstalking survivors.     

Dissociations of the night: individual differences in sleep-related experiences and their relation to dissociation and schizotypy.

The author examined the associations among sleep-related experiences (e.g., hypnagogic hallucinations, nightmares, waking dreams, and lucid dreams), dissociation, schizotypy, and the Big Five personality traits in 2 large student samples. Confirmatory factor analyses indicated that (a) dissociation and schizotypy are strongly correlated-yet distinguishable-constructs, and (b) the differentiation between them can be enhanced by eliminating detachment/depersonalization items from the dissociation scales. A general measure of sleep experiences was substantially correlated with both schizotypy and dissociation (especially the latter) and more weakly related to the Big Five. In contrast, an index of lucid dreaming was weakly related to all of these other scales. These results suggest that measures of dissociation, schizotypy, and sleep-related experiences all define a common domain characterized by unusual cognitions and perceptions.     

Driving Behaviour in Young Adults with Developmental Co-ordination Disorder

Between 30 and 70% of children with developmental co-ordination disorder (DCD) will have persistent daily functioning difficulties in adulthood (Cousins and Smyth 2003). However, few DCD studies have focussed specifically on the stage of emerging adulthood. Driving is an important rite of passage which marks the start of independence from parents. Delay, difficulty or avoidance in learning to drive may all have profound social, practical and psychological implications for the young adult with DCD. The driving experiences of 38 students with DCD and 77 typically developing students aged 17–25 years were examined using a semi-structured questionnaire. Quantitative measures indicate that fewer adults with DCD learn to drive compared to controls and that they show continuing difficulties with distance estimation and parking. Qualitative comments give a valuable insight into the learning and driving experiences of adults with DCD. Differences in the driving behaviour of adults with DCD and attention deficit hyperactivity disorder (ADHD) are discussed, as it is the need to consider guidance on driving skills when providing a package of care for young adults with DCD.     

Personality vulnerability to stress-related sleep disruption: Pathways to adverse mental and physical health outcomes

This study examined the associations among neuroticism (N), conscientiousness (C), and sleep quality in the context of a life transition. The interactive effects of N and C on the association between sleep quality and mental and physical well-being were also examined. Seventy-seven college freshmen (mean age = 19.5) completed personality measures at the beginning of the academic year, and measures of sleep quality, daily hassles, functional status, depression, and self-assessed health approximately 2 months later. N was negatively and C was positively related to sleep quality, and daily hassles mediated these associations. Poor sleep predicted greater depressive symptoms and poorer functional status for high-N/low-C participants, but not for other N and C profiles. Results suggest that conscientiousness moderates the extent to which high-N individuals are vulnerable to the adverse effects of poor sleep.     

Effects of cognitive reappraisal and expressive suppression on daily work-related outcomes: Comparison between younger and older Chinese workers

The existing models of emotion regulation (ER) do not make any specific prediction about the differential effects of the same ER strategy among individuals of different ages. However, such assumption may not be necessarily true, given that older adults emphasise emotional goals greater than their younger counterparts. Using a daily diary approach, this study investigated whether the effects of cognitive reappraisal (CR) and expressive suppression (ES) on daily work-related outcomes would vary by age when individuals were experiencing negative events at work. A total of 141 Chinese managerial employees (M_age = 42.40, SD = 9.16) completed the diary report for 15 consecutive workdays by recording their daily work experiences. The results of the multilevel analyses showed that age moderated the effects of ES on daily negative emotions, perceived work stress, and job satisfaction. More beneficial effects were observed among older workers than among younger workers. By contrast, the use of CR significantly lowered the levels of negative emotions and perceived work stress for both younger and older workers. These findings revealed the importance of considering the role of age in evaluating the effects of ES on work-related outcomes, which provides important implications for future research and training programs in ER.