Absorbed in sleep: Dissociative absorption as a predictor of sleepiness following sleep deprivation in two high-functioning samples

In recent years, a labile sleep-wake cycle has been implicated as a cause for dissociative experiences, and studies show that dissociation is elevated following sleep deprivation. Dissociative individuals may find it harder to regulate sleepiness in the face of sleep disruption. Although there is significant variability in reactions to sleep deprivation, research on trait predictors is scarce. The present study examined the ability of trait dissociation to prospectively predict sleepiness following sleep loss and recovery sleep. Two high-functioning samples, namely, Remotely Piloted Aircraft officers (N = 29) and Air Force jet pilots (N = 57) completed state and trait questionnaires assessing sleep and dissociation before and after full or partial sleep loss. Dissociative absorption was a consistent predictor of an increase in sleepiness following sleep loss and following recovery sleep, controlling for baseline sleepiness levels. We discuss the findings in light of a difficulty to regulate and monitor consciousness states.     

The relationship between different types of dissociation and psychosis-like experiences in a non-clinical sample

This study investigated whether detachment-type dissociation, compartmentalisation-type dissociation or absorption was most strongly associated with psychosis-like experiences in the general population. Healthy participants (N = 215) were tested with the Dissociative Experiences Scale (DES, for detachment-related dissociative experiences); the Harvard Group Scale of Hypnotic Susceptibility (HGSHS: A, for dissociative compartmentalisation); the Tellegen Absorption Scale (TAS, for non-clinical ‘functional’ dissociative experience); and two measures of psychotic-like experiences, the 21-item Peters et al. Delusions Inventory (PDI-21) and the Cardiff Anomalous Perceptions Scale (CAPS). In multiple regression analyses, DES and TAS but not HGSHS: A scores were found to be significantly associated with PDI-21 and CAPS overall scores. A post hoc hierarchical cluster analysis checking for cluster overlap between DES and CAPS items, and the TAS and CAPS items showed no overlap between items on the DES and CAPS and minimal overlap between TAS and CAPS items, suggesting the scales measure statistically distinct phenomena. These results show that detachment-type dissociation and absorption, but not compartmentalisation-type dissociation are significantly associated with psychosis-like experiences in a non-clinical population.     

Examining the role of psychological need satisfaction in sleep: A Self-Determination Theory perspective

Although ample research has shown the satisfaction of the basic psychological needs for autonomy, competence, and relatedness, as defined within Self-Determination Theory, to be related to well-being, the relation with sleep-related functioning has not yet been examined. Hence, the present study explored the association between basic psychological need satisfaction and subjective measures of sleep and daytime dysfunction, as well as the explanatory role of need satisfaction in the relation between mindfulness and financial strain and these outcomes, in an adult sample (N = 215, 61% female; Mean age = 31). The results indicated that low psychological need satisfaction related to poor sleep quality, lower sleep quantity, and more daytime dysfunction. Finally, mindfulness and financial strain related, respectively, negatively and positively to poor sleep quality and daytime dysfunction through need satisfaction, suggesting that need satisfaction represents a critical explanatory mechanism. The role of psychological need satisfaction in the adequate regulation and satisfaction of the physiological need for sleep is discussed.     

Relationships between conspiracy mentality,hyperactive agency detection,and schizotypy: Supernatural forces at work?

We examined whether belief in conspiracy theories is predicted by an overactive tendency to perceive agency in the environment, and hypothesized that this association is especially robust among high-schizotypy individuals. Samples of undergraduates (n = 209) and conspiracist website visitors (n = 37) completed measures of conspiracy mentality, hyperactive agency detection, and schizotypy. Correlation analysis indicated significant positive relationships between all pairs of variables in both groups. Multiple regression analysis showed that schizotypy is incrementally predicted by conspiracy mentality and hyperactive agency detection, with chi-square analysis revealing a significant tendency for high-schizotypal individuals to score higher on both variables. Heightened uncertainty about causally ambiguous subjective experiences likely predisposes schizotypals to greater hyperactive agency detection, thereby increasing the probability of conspiracy thinking. Findings are linked to ideological and theoretical differences between secular and supernatural conspiracist beliefs, which are readily apparent in conspiracist literature and communities, and bring into question the homogeneity of the conspiracy mentality construct.     

Are delusional contents replayed during dreams?

The relationship between dream content and waking life experiences remains difficult to decipher. However, some neurobiological findings suggest that dreaming can, at least in part, be considered epiphenomenal to ongoing memory consolidation processes in sleep. Both abnormalities in sleep architecture and impairment in memory consolidation mechanisms are thought to be involved in the development of psychosis. The objective of this study was to assess the continuity between delusional contents and dreams in acutely psychotic patients. Ten patients with a single fixed and recurring delusional content were asked to report their dreams during an acute psychotic break. Sixteen judges with four different levels of acquaintance to the specific content of the patients’ delusions were asked to group the dreams, expecting that fragments of the delusional thought would guide the task. A mathematical index (f, t) was developed in order to compare correct groupings between the four groups of judges. Most judges grouped the dreams slightly above chance level and no relevant differences could be found between the four groups [F(3, 12) = 1.297; p = n.s.]. Scoring of dreams for specific delusional themes suggested a continuity in terms of dream and waking mentation for two contents (Grandiosity and Religion). These findings seem to suggest that at least some delusional contents recur within patients’ dreams. Future studies will need to determine whether such continuity reflects ongoing consolidation processes that are relevant to current theories of delusion formation and stabilization.     

Personality attributes that predict cadet performance at West Point

Using data from the United States Military Academy at West Point (N = 1102 and N = 1049) from two successive years, we examined psychological measures of cadets and the correlations of those measures with consequential outcomes such as cadet performance and leadership potential. We examined four broad intelligences, two of which were thing-focused (spatial and mathematical) and two people-focused (verbal and personal intelligences) and their predictions to thing- and people-centered courses (e.g., chemistry versus psychology). We found support for a thing-people differential in reasoning. The broad intelligences and the Big Five personality traits also predicted academic and other performance criteria at consequential levels.     

Appearance-related teasing,body dissatisfaction,and disordered eating: A meta-analysis

A meta-analysis was conducted to determine the relationship between appearance and weight-based teasing and three outcome measures: body dissatisfaction, restrictive eating, and bulimic behaviors. Four meta-analyses were conducted. Fifty effect sizes (N = 10,618) resulted in a moderate effect size of .39 for the relationship between weight teasing and body dissatisfaction; 24 effect sizes (N = 7190) resulted in an effect size of .32 for the relationship between appearance teasing and body dissatisfaction; 20 effect sizes (N = 4792) resulted in an effect size of .35 for the relationship between weight teasing and dietary restraint; and 22 effect sizes (N = 5091) resulted in an effect size of .36 for the relationship between weight teasing and bulimic behaviors. Significant moderators that emerged were teasing measure type, publication type, study type, age group, and gender. The findings offer further support for the inclusion of strategies in body image and eating disorders’ prevention and intervention programs that focus on handling negative, appearance-related commentary.     

Associations Between Sleep Hygiene and Insomnia Severity in College Students: Cross-Sectional and Prospective Analyses

Although a small number of studies characterized cross-sectional associations between sleep hygiene and insomnia severity, no prior study has examined their relationships prospectively. Further, the relationship between sleep hygiene and insomnia severity among college students has rarely been examined. This study examined the prevalence of diverse sleep hygiene behaviors and their associations with insomnia severity in two independent samples of college students from a cross-sectional (N = 548; mean age = 19; 59% female; 71% White) and a two-wave short-term prospective (N = 157; mean age = 19; 71% female; 76% White) study. A total of 12% to 13% of students reported clinically significant insomnia. On average, students reported frequent engagement in inconsistent sleep-wake schedules and lounging and worrying/thinking about important matters in the bed. Improper sleep scheduling, behaviors that promote arousal near bedtime, and uncomfortable sleeping environments were positively associated with cross-sectional insomnia severity. After controlling for other well-established risk factors, only improper sleep scheduling remained significant. Prospectively, baseline improper sleep scheduling predicted insomnia severity at a 2-month follow-up after controlling for baseline insomnia severity and other well-established risk factors. Together, findings suggest a potential unique role of improper sleep scheduling in insomnia among college students.     

Comparison of fetal and maternal heart rate measures using electrocardiographic and cardiotocographic methods

PurposeTo determine the reliability at term of: (1) two methods of measuring fetal heart rate (HR), electrocardiographic (ECG, the ‘gold standard’) and cardiotocographic (CTG) and (2) two ECG methods of measuring maternal HR variability over relatively brief periods of time (s–min).MethodsDuring 20 min of rest (N = 39) and during 2 min of auditory stimulation (mother's recorded voice, n = 19), fetal HR data were collected using an ECG (Monica AN24) and a Hewlett-Packard Model 1351A CTG. Simultaneously, maternal HR data (n = 37) were collected using the same ECG device (Monica AN24) and a second stand-alone cardiac monitor (Spacelab 514T cardiac monitor with a QRS detector).ResultsDuring 20 min of maternal rest, correlations of individual fetal CTG with ECG measures of HR at each second were moderate to high (r = .57–.97) for 77% of fetuses. Correlations of HR averaged over fetuses and over each of the 20 min were high (r = .93–.97); fetal HR averaged over 20 min varied between devices from 0.0 to 0.8 bpm. During 2 min of maternal voice presentation, correlations of fetal HR over each second were moderate to high (r = .54–.99) for 95% of fetuses and high (all rs = .99) when averaged across fetuses in 30 s or 2 min epochs. Average fetal HR between devices over the 2 min voice varied from 0.0 to 0.6 bpm. Correlations and/or % agreement between the two ECG methods of measuring maternal HR were high. Average maternal HR over 10 min showed 81% of pairs with a difference of ≤1 bpm; correlations for HR variability measures varied from r = .89 to .97.ConclusionsGood reliability was demonstrated between individual spontaneous and auditory induced fetal CTG and ECG with high correlations when HR data were averaged over fetuses or in 30–120 s epochs. High reliability of maternal HR measures was obtained using two ECG devices.     

Development and initial assessment of a short measure for adult playfulness: The SMAP

This study reports an initial evaluation of a new short measure for adult playfulness (SMAP). In data from a construction (N = 266), and two replication samples (N = 147 students, N = 215 adults), a one-dimensional solution showed the best fit for the data and satisfactory internal consistency (.80–.89) was found (test–retest correlation = .74; 12–16 weeks). Younger adults scored higher in playfulness than older ones. The SMAP demonstrated robust correlations with measures for adult playfulness and the need for play. Cheerfulness and culture along with low seriousness and low conscientiousness were its best predictors. In ratings of an unordered work-space and a surrealistic painting, playful adults expressed higher liking for and lower disapproval of these compared to non-playful adults. Overall, the new scale yielded good psychometric properties and first evidence on its validity was encouraging. The SMAP has been developed for an economic, global assessment of adult playfulness, which is still an understudied topic in personality research.     

Measuring thirty facets of the Five Factor Model with a 120-item public domain inventory: Development of the IPIP-NEO-120

The IPIP-NEO (Goldberg, 1999) is a 300-item inventory that measures constructs similar to those in the NEO Personality Inventory (NEO PI-R; Costa & McCrae, 1992). Despite evidence for its reliability and validity, the IPIP-NEO is even longer than the original 240-item NEO PI-R. This article details the development of a 120-item version of the IPIP-NEO from an Internet sample (N = 21,588) and the subsequent testing of its psychometric properties in Goldberg’s (2008) Eugene-Springfield community sample (N = 481), two additional large Internet samples (Ns = 307,313 and 619,150) and a local sample (N = 160). Results indicate that the psychometric properties of the 120-item IPIP-NEO compare favorably to the properties of the longer form.     

Athletic-ideal and thin-ideal internalization as prospective predictors of body dissatisfaction,dieting, and compulsive exercise

Although internalization of the thin ideal has been extensively researched and is now regarded as a risk factor for eating disturbance, endorsement of the firm, athletic body ideal has received only minimal attention. This short-term longitudinal study explored whether internalization of two aspects of the current cultural ideal (thinness and athleticism) prospectively predicted three potentially deleterious outcomes: body dissatisfaction, dieting, and compulsive exercise. Undergraduate women (N = 231) completed self-report measures at the beginning of the academic year and again 7 months later (N = 156 at Time 2). Athletic-ideal internalization predicted change in compulsive exercise over the 7-month study period but not body dissatisfaction or dieting; thin-ideal internalization predicted change in all three outcomes. When both internalization measures were tested simultaneously, neither contributed unique variance. Results suggest that athletic-ideal internalization is not as detrimental as thin-ideal internalization.     

Development and validation of the Body and Appearance Self-Conscious Emotions Scale (BASES)

The purpose of these studies was to develop a psychometrically sound measure of shame, guilt, authentic pride, and hubristic pride for use in body and appearance contexts. In Study 1, 41 potential items were developed and assessed for item quality and comprehension. In Study 2, a panel of experts (N = 8; M = 11, SD = 6.5 years of experience) reviewed the scale and items for evidence of content validity. Participants in Study 3 (n = 135 males, n = 300 females) completed the BASES and various body image, personality, and emotion scales. A separate sample (n = 155; 35.5% male) in Study 3 completed the BASES twice using a two-week time interval. The BASES subscale scores demonstrated evidence for internal consistency, item-total correlations, concurrent, convergent, incremental, and discriminant validity, and 2-week test–retest reliability. The 4-factor solution was a good fit in confirmatory factor analysis, reflecting body-related shame, guilt, authentic and hubristic pride subscales of the BASES. The development and validation of the BASES may help advance body image and self-conscious emotion research by providing a foundation to examine the unique antecedents and outcomes of these specific emotional experiences.     

Weight-related actual and ideal self-states,discrepancies, and shame,guilt, and pride: Examining associations within the process model of self-conscious emotions

The aim of this study was to examine the associations between women's actual:ideal weight-related self-discrepancies and experiences of weight-related shame, guilt, and authentic pride using self-discrepancy (Higgins, 1987) and self-conscious emotion (Tracy & Robins, 2004) theories as guiding frameworks. Participants (N = 398) completed self-report questionnaires. Main analyses involved polynomial regressions, followed by the computation and evaluation of response surface values. Actual and ideal weight self-states were related to shame (R² = .35), guilt (R² = .25), and authentic pride (R² = .08). When the discrepancy between actual and ideal weights increased, shame and guilt also increased, while authentic pride decreased. Findings provide partial support for self-discrepancy theory and the process model of self-conscious emotions. Experiencing weight-related self-discrepancies may be important cognitive appraisals related to shame, guilt, and authentic pride. Further research is needed exploring the relations between self-discrepancies and a range of weight-related self-conscious emotions.     

A meta-analysis of correlations between depression and first person singular pronoun use

Depression is a burden. We discuss how theories, identification, assessment, and treatment of depression are at least partially tied to the correlation between first person singular pronoun use and individual differences in depression. We conducted a meta-analysis (k = 21, N = 3758) of these correlations, including numerous unpublished correlations from the file drawer. Our fixed effects analysis revealed a small correlation (r = 0.13, 95% CI = [0.10–0.16]) by modern standards. The correlation was not moderated by gender, nor by whether the effect had been published. These results more firmly establish first person singular pronoun use as a linguistic marker of depression—a marker that appears to be useful across demographic lines.     

Meta-analytic evidence for higher implicit affiliation and intimacy motivation scores in women,compared to men

We used meta-analysis to test for gender differences in implicit needs for affiliation/intimacy, assessed via story-coding methods. We included thirty-three effect sizes from 26 publications and 2 unpublished studies, covering a total of 5962 research participants (58% female). Across studies, women scored higher than men in measures of implicit affiliation motivation (d¹ = 0.45, 95%CI = [0.37; 0.53]). This finding was not moderated by the coding system used, gender congruence of the picture cues presented, or correction for protocol length. Men and women did not differ in their implicit needs for power (N = 2493, k = 15, d¹ = −0.19, 95%CI = [−0.44; 0.05]) or achievement (N = 2235, k = 13, d¹ = 0.14, 95%CI = [−0.03; 0.30]).     

Reliability and validity of three screening measures of borderline personality disorder in a nonclinical population

This study explored reliability and validity of three self-report screening measures of borderline personality disorder (BPD): the Personality Assessment Inventory-Borderline Features Scale (PAI-BOR; Morey, 1991), Personality Diagnostic Questionnaire-4-BPD scale (PDQ4-BPD; Hyler, 1994) and Mclean Screening Instrument for BPD (MSI-BPD; Zanarini et al., 2003). Participants (N = 523) were drawn predominantly from community and student populations. All three measures were internally consistent. Confirmatory Factor Analysis of the PAI-BOR did not support Jackson and Trull’s (2001) six-factor structure or Morey’s (1991) four-factor structure. The three measures converged highly, despite the broader theoretical basis of the PAI-BOR. Expected demographic differences on the measures supported construct validity, and concurrent validity in relation to theoretical-related criteria was also supported. Only the PAI-BOR and PDQ4-BPD showed incremental validity in predicting specific criteria, although, the amount of unique variance predicted was small.     

Effect of an intensified training period on well-being indices,recovery and psychological aspects in professional soccer players

IntroductionIntensified training periods (IT) are associated with fatigue increase and psychological variations.ObjectiveThis investigation aimed to examine the perceived well-being, recovery quality and psychological responses during an IT.MethodsFifteen professional soccer players (mean ± SD: age: 24 ± 1 years, body mass: 71.3 ± 15.1 kg, height: 178.0 ± 6.1 cm) completed a 6-week training program consisting of 2 weeks of basic training (BT) and 4 weeks of IT. They were tested before (T1) and after (T2) the IT. Training load (TL) perception, strain and monotony were measured by the session-RPE method. Well-being indices (sleep quality, fatigue level, stress and delayed-onset muscular soreness [DOMS]) and total quality recovery (TQR) were recorded before each training session. The profile of mood states (POMS) and the Ottowa mental skills assessment tool (OMSAT)-3 were conducted before and after IT.ResultsNo significant difference was found after IT in OMSAT-3 scores (p > 0.05). TL, monotony and strain increased during IT (p < 0.001). Moreover, well-being indices (stress, sleep quality, fatigue level and DOMS) increased (p < 0.001) and TQR decreased (p < 0.001) during IT. The IT increased total mood disturbance (TMD, p < 0.001), tension (p < 0.05) and fatigue (p < 0.01) and decreased vigor (p < 0.001). Significant relationships were found between TL and Hooper Index (HI), TQR and TMD (r = 0.58, 0.65, −0.57, respectively; all p < 0.05).ConclusionThe findings of this investigation suggested that mental ability was not sensitive to fatigue caused by training load intensification. However, perceived well-being, recovery state and mood were found to be sensitive measures and may provide coaches with information about wellness and psychological state of soccer players during IT.     

Is intensive measurement of body image reactive? A two-study evaluation using Ecological Momentary Assessment suggests not

Intensive assessment methods (e.g., Ecological Momentary Assessment [EMA]) are increasingly used to capture body image experiences in daily life. One concern with EMA is multiple assessments may increase reactivity to internal or external cues, potentially biasing measurement. Reactivity to EMA was evaluated in two studies (Study 1: N = 63 female undergraduates, Study 2: N = 131 women with high body dissatisfaction/disordered eating). Participants completed five daily surveys on handheld computers for 1–2 weeks and body image-related questionnaires at the start and end of each study. Results showed no systematic changes in pre- and post-EMA measures or momentary EMA reports, suggesting women were not reactive to the EMA protocols. Completing 1–2 weeks of EMA does not appear to affect body dissatisfaction, mood, or attitudes in non-clinical or at-risk samples of women. These studies provide evidence that EMA methods can be used to assess real-world body image experiences without undue concern about measurement reactivity.