Living alone does not account for the association between loneliness and sleep in older adults: Response to Hawkley, Preacher, and Cacioppo, 2010.

Ccomments on the original article "Loneliness impairs daytime functioning but not sleep duration," by L. C. Hawkley, K. J. Preacher, and J. T. Cacioppo (see record 2010-04888-004). The association between daytime dysfunction and loneliness in this article was attributed to nonrestorative sleep caused by loneliness. Loneliness can be divided into two forms: social and emotional, where social indicates a measure of social connectedness or isolation, and emotional indicates a perceived presence or lack of emotional support and closeness (Weiss, 1973). It is possible that the emotional loneliness construct is related to poor sleep quality, rather than social loneliness. Based on the results of their own study, the current authors suggest it is unlikely that the association between loneliness and sleep is due solely to the threat of sleeping alone. Rather, it is proposed that emotional loneliness is the key aspect of loneliness that correlates with sleep quality. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Loneliness impairs daytime functioning but not sleep duration.

Objective: To assess the prospective association between daily feelings of loneliness and subsequent feelings of daytime dysfunction indicative of poor sleep quality. Design: Three consecutive end-of-day diaries were completed by a population-based sample of 215 adults (mean age = 57.5 years, SD = 4.4). Diary questions probed sleep duration, daytime dysfunction (i.e., fatigue, low energy, sleepiness), loneliness, physical symptoms, and depressed affect experienced that day. Chronic health condition data and body mass index were also obtained. Autoregressive cross-lagged panel models were used to examine the magnitude of reciprocal prospective associations between loneliness and daytime dysfunction. Main Outcome Measures: Unstandardized path coefficients adjusted for race/ethnicity, sleep duration, marital status, household income, chronic health conditions, and health symptom severity. Results: Daily variations in loneliness predicted subsequent feelings of daytime dysfunction (B = 0.16, p     

Sleep patterns of children sleeping in residential care, in kibbutz dormitories and at home--a comparative study

The present study compares sleep patterns of two groups of children sleeping away from their families, in residential care (n = 31, age 3.7 +/- 1.7 years) and kibbutz (n = 29, age 3.7 +/- 1.8 years) dormitories, with age-matched children sleeping at home (n = 21, age 3.7 +/- 1.8 years). Sleep was monitored by wrist-worn actigraphs for three consecutive nights and assessed by sleep questionnaires, which were completed by parents of the kibbutz children and caretakers at residential care. Children in the residential care settled to sleep significantly earlier and slept longer than those children living in a kibbutz or at home. The longest period of uninterrupted sleep was more extended for children sleeping at home, compared to those sleeping in communal dormitories. Correlation analysis between various assessments of sleep and waking behaviors revealed a different pattern for kibbutz and residential care children. For the kibbutz children, there were significant correlations between difficulties falling asleep and various attributes of daytime tiredness. Conversely, in the residential care, difficulties falling asleep were significantly and positively correlated with parameters associated with daytime alertness. This pattern of correlations and the actigraphic data indicate that difficulties in falling asleep for children in residential care are probably a consequence of being put to bed too early and according to a rigid schedule, and not the result of emotional factors.     

A haphazard reading of McHugh and Barlow (2010).

Replies to comments on Do haphazard reviews provide sound directions for dissemination efforts? (see record 2010-24768-012) by Eileen Gambrill and Julia H. Littell on the current authors' article The dissemination and implementation of evidence-based psychological treatments: A review of current efforts (see record 2010-02208-010) by Kathryn R. McHugh and David H. Barlow. In their commentary, Gambrill and Littell (2010, this issue) suggested that we provided misleading guidance on the selection of treatments for dissemination in our recent article (McHugh & Barlow, February– March 2010) on the dissemination and implementation of evidence-based treatments. These authors misread our article as an affirmation of the evidence base of the treatments involved in the dissemination and implementation efforts we described. In fact, we explicitly disclaimed in the third paragraph that “we do not revisit controversies surrounding the identification or appropriateness of [evidence-based psychological treatments] . . . rather, we focus on the status and adequacy of [dissemination and implementation] efforts currently under way (McHugh & Barlow, 2010, p. 73). Thus, our review was not intended as a guideline for which treatments to disseminate, nor was it a thorough review of the evidence base for the treatments included in the efforts we reviewed. We chose several programs for illustrative purposes as representative efforts from three general domains: national, state, and investigator initiated. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Sleep schedules and daytime functioning in adolescents

Sleep and waking behaviors change significantly during the adolescent years. The objective of this study was to describe the relation between adolescents' sleep/wake habits, characteristics of students (age, sex, school), and daytime functioning (mood, school performance, and behavior). A Sleep Habits Survey was administered in homeroom classes to 3,120 high school students at 4 public high schools from 3 Rhode Island school districts. Self-reported total sleep times (school and weekend nights) decreased by 40-50 min across ages 13-19, ps < .001. The sleep loss was due to increasingly later bedtimes, whereas rise times were more consistent across ages. Students who described themselves as struggling or failing school (C's, D's/F's) reported that on school nights they obtain about 25 min less sleep and go to bed an average of 40 min later than A and B students, ps < .001. In addition, students with worse grades reported greater weekend delays of sleep schedule than did those with better grades. Furthermore, this study examined a priori defined adequate sleep habit groups versus less than adequate sleep habit groups on their daytime functioning. Students in the short school-night total sleep group (< 6 hr 45 min) and/or large weekend bedtime delay group (> 120 min) reported increased daytime sleepiness, depressive mood, and sleep/wake behavior problems, ps < .05, versus those sleeping longer than 8 hr 15 min with less than 60 min weekend delay. Altogether, most of the adolescents surveyed do not get enough sleep, and their sleep loss interferes with daytime functioning.     

Development of guidelines to designate alleles using an STR multiplex system

A random sample of 876 subjects aged 65-79 years were investigated by means of a questionnaire concerning sleep and related factors. Sleep problems were reported by 23.8% of females and 13.3% of males. Moderate or major complaints of maintaining sleep were reported by 43.5% of subjects, early morning awakening 33.4% and difficulties falling asleep 31.4%. Daytime sleepiness was more common among males, and a relationship between daytime sleepiness and perceived poor sleep was found. Daytime napping was common, but not related to poor sleep. The prevalence of regular sleeping pill users was 7.6% for females and 3.0% for males and a relationship between sleep problems, sleeping pill usage and psychiatric symptoms was established. Among the regular sleeping pill users 39.1% had possible depression (PD) and 63.0% had possible anxiety disorder (PA). Among respondents with sleep complaints 29.8% had PD and 48.7% had PA. Sleep problems were also related to impaired physical health. Various medical illnesses contributed to sleep complaints among males, and depression affected sleep the most among females.     

Oliguria, an unusual presentation of primary signet ring-cell adenocarcinoma of the urinary bladder: a case report and review of the literature

OBJECTIVE: To evaluate whether improved nasal breathing changes the quality of life in snoring men and improves the female sleeping partners' well-being in the morning. DESIGN: During 1 month, 42 heavily snoring men slept with a nostril dilator. Before and after 1 month, the snorers rated their daytime tiredness and completed the Nottingham Health Profile questionnaire. Female sleeping partners rated the snoring, the quality of their sleep, and their sense of well-being in the morning. A population sample was used for comparison. SETTING: The Central Hospital, Sk?vde, Sweden. RESULTS: The snorers' quality of life before the study was significantly worse (P<.001) than that of the comparison population and improved significantly (P = .001). The men were significantly (P<.001) less tired during the day when their nasal airflow was increased. Female sleeping partners had significantly (P = .005) better sleep and an improved sense of well-being in the morning during the test period. Both were correlated with a significant reduction in the snoring (P<.001). CONCLUSIONS: When nasal breathing of snoring men was improved at night, their quality of life was significantly improved. The female sleeping partners had a reduction in sleep disturbance that correlated well with an improvement in their own sleep and feelings of well-being in the morning.     

Process and outcome considerations in juror evaluation of eyewitness testimony.

Responds to comments by G. L. Wells (see record 1985-20040-001) on the present authors' (see record 1984-06612-001) argument that current empirical findings on perception and memory do not justify a role for psychologists in evaluating eyewitness testimony. The present authors argue that Wells's statements on process and outcome confuse the outcome of an individual trial and trials in the aggregate. The question of whether jurors tend to overbelieve eyewitness testimony is discussed. (4 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Do our methods lead to insomniacs' madness?: Daytime testing after laboratory and home-based polysomnographic studies

Complaints of daytime dysfunction are common among chronic insomniacs, but laboratory comparisons of insomniacs and age-matched and gender-matched normal controls have generally failed to document these complaints. However, a few studies, which allowed subjects to sleep in their homes on the nights before daytime testing, have shown some relative diurnal deficits among insomniacs. The current study compared the effects of nocturnal laboratory and home polysomnogram (PSG) studies on subsequent daytime test results among older insomniacs and normal sleepers. Insomniacs (n = 32) and normal sleepers (n = 32) were randomly assigned to first undergo three nights of nocturnal PSG monitoring either in the sleep laboratory (16 insomniacs, 16 normal sleepers) or in their homes (16 insomniacs, 16 normal sleepers). Following the third night of PSG monitoring, subjects spent 1 day in the sleep laboratory, where they completed a four-trial multiple sleep latency test along with four trials of a computer-administered performance test battery. Results showed that insomniacs, as a group, were slightly, albeit consistently, sleepier than were normal sleepers following nights of home sleep monitoring, but a reverse of this trend was found among subjects who underwent nocturnal laboratory PSG before daytime testing. Furthermore, normal sleepers showed faster reaction times on a signal detection task than did insomniacs within the subgroup who underwent home PSGs prior to such testing. However, within the subgroup that underwent nocturnal laboratory PSGs, insomniacs' signal detection reaction times were significantly faster than those shown by normal sleepers. Results provide some support for the speculation that the nocturnal PSG monitoring site, used as a precursor to daytime testing, may systematically affect daytime comparisons between insomniacs and matched controls. Moreover, these results suggest that the use of home-based nocturnal PSG monitoring prior to daytime testing may provide an enhanced understanding of insomniacs' diurnal complaints.     

Do haphazard reviews provide sound directions for dissemination efforts?

Comments on The dissemination and implementation of evidence-based psychological treatments: A review of current efforts (see record 2010-02208-010) by Kathryn R. McHugh and David H. Barlow. The lead article in the February–March issue by McHugh and Barlow (2010) emphasized the need for “dissemination and implementation of evidence-based psychological treatments.” The authors identified a number of intervention programs as evidence based and in need of dissemination. One is multisystemic therapy (MST). They claimed that this program is among “the most successful dissemination efforts . . . pursued by treatment developers” (p. 79). McHugh and Barlow’s (2010) discussion of the implementation of MST in Hawaii is troubling, because it neglected to mention concerns about the perceived lack of cultural sensitivity of the MST program in that state. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Catecholaminergic nerve fibres in normal and alkali-burned rabbit cornea

Increased lifestyle demands and reduced sleep are reported to result in daytime sleepiness and impaired functioning for teenagers. A sample of 612 freshman urban high school students completed a questionnaire describing their sleep patterns and problems, along with sociodemographic information, daily activities, pubertal development, depressive mood, and morning-evening preference. About 63% of the respondents felt they needed more sleep on weeknights (MS group), experienced sleepiness that interfered with their schoolwork, and had problems with sleeping. The other group reported they got sufficient sleep on weeknights (SS group) and did not experience sleepiness problems to the same degree. However, both had similar weeknight sleep and daily activity patterns. The MS group reported an ideal sleep time of 9.2 h, about 2 h more than they were getting and 1 h more than the SS group ideal, and had a higher preference for later bed and waking times. In our sample, individual differences in biologic sleep need and quality of sleep may be emerging as early as 14 years of age.     

Effects of sleeping in a chemical protective mask on sleep quality and cognitive performance

PURPOSE: We wanted to determine whether sleep is disrupted when soldiers sleep in a new chemical protective mask, the M40. Sleep quantity and quality, extent of protection provided by the mask during sleep, and next day performance were assessed. METHOD: After several days of training, 9 male soldiers slept with and without the M40 mask on four occasions. RESULTS: Soldiers were able to tolerate the mask for most or all of the night. However, sleep, as assessed by wrist-worn activity monitors, was significantly disturbed. Minutes (mean +/- SEM) of waking significantly increased, from 25 +/- 2.1 to 86 +/- 8.5 per night (p < 0.001), and number of awakenings rose from 8 +/- 0.6 to 20 +/- 0.9 (p < 0.0001). Soldiers reported that it took longer and was more difficult to fall asleep when wearing the mask. Errors on a choice reaction time task increased significantly and subjects reported greater fatigue and sleepiness the day after sleeping in the mask. Protection provided by the masks varied substantially among subjects and declined over the course of the study. Some soldiers were protected throughout the night but others were only protected intermittently. CONCLUSION: We conclude that sleeping in the chemical protective mask should only be done when necessary, given the adverse effects on sleep and daytime function, as well as the variability of protection, of the mask.     

Whites' opposition to busing: On conceptualizing and operationalizing group conflict.

L. Bobo (see record 1984-14820-001) concluded that Whites' opposition to racial busing is rooted in their perception that Blacks pose tangible threats to their own interests, a conclusion that supports realistic group conflict theory and contradicts the present authors' (see record 1981-32636-001) conclusion that threats posed by Blacks to Whites' private lives did not spill over into opposition to racial busing. It is shown that Bobo reported results entirely consistent with those of the present authors and that he failed to distinguish group interest from self-interest, symbolic racism, or other plausible causes of opposition to busing. (25 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The toll of ethnic discrimination on sleep architecture and fatigue.

Most work on ethnicity tends to focus on daytime health rather than how aspects of ethnicity affect nighttime functioning. The current study examined how discrimination and ethnic identity relate to sleep architecture and fatigue in 37 African Americans and 56 Caucasian Americans. The authors conducted sleep monitoring with standard polysomnography. African Americans had less slow-wave sleep and reported more physical fatigue than did Caucasian Americans (ps ps p     

Colocalisation of taurine- with transmitter-immunoreactivities in the nervous system of the migratory locust

The validity of whiplash syndrome has been a source of debate in the medical literature for many years. Some authors have published articles suggesting that whiplash injuries are impossible at certain collision speeds; others have stated that the problem is psychological, or is feigned as a means to obtain secondary financial gain. These articles contradict the majority of the literature, which shows that whiplash injuries and their sequelae are a highly prevalent problem that affects a significant proportion of the population. The authors of the current literature critique reviewed the biomedical and engineering literature relating to whiplash syndrome, searching for articles that refuted the validity of whiplash injuries. Twenty articles containing nine distinct statements refuting the validity of whiplash syndrome were found that fit the inclusion criteria. The methodology described in these articles was evaluated critically to determine if the authors' observations regarding the validity of whiplash syndrome were scientifically sound. The authors of the current critique found that all of the articles contained significant methodologic flaws with regard to their respective authors' statements refuting the validity of whiplash syndrome. The most frequently found flaws were inadequate study size, nonrepresentative study sample, nonrepresentative crash conditions (for crash tests), and inappropriate study design. As a result of the current literature review, it was determined that there is no epidemiologic or scientific basis in the literature for the following statements: whiplash injuries do not lead to chronic pain, rear impact collisions that do not result in vehicle damage are unlikely to cause injury, and whiplash trauma is biomechanically comparable with common movements of daily living.     

Considering phasic alerting in Alzheimer's disease: Comment on Tales et al. (2006).

A. Tales, R. J. Snowden, M. Brown, and G. Wilcock (2006; see record 2006-20657-014) have questioned the authors' view (see record 2004-12990-007) of a possible interdependence between attentional systems mediating exogenous spatial orienting and phasic alerting as well as the authors' suggestion that phasic alerting deficits in patients with Alzheimer's disease (AD) may be influencing their performance on tests of spatial orienting. Consistent with this possibility, both laboratories have previously demonstrated increased spatial orienting and decreased phasic alerting in patients with AD. In Tales et al.'s current study, however, they have instead suggested that their results provide evidence for functional independence between these attentional systems in AD. In this commentary, the authors address the misinterpretations of their study and evaluate the degree to which Tales et al.'s study addresses the issues that they raise. Given Tales et al.'s difficulty performing analyses on response time data because of variance issues, the presence of a reduced (although not significant) alerting effect in Tales et al.'s AD group (consistent with the authors' previous findings), and a potential floor effect in their measure of alerting, the authors question the validity of Tales et al.'s conclusions and reaffirm their position that not considering interactions among attentional systems can lead to inaccurate characterizations of the mechanisms by which they operate. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Relationships between nocturnal activity, parental ratings of daytime activity and measues from the Children's Sleep Behaviour Scale.

Monitored the nocturnal activity levels of 20 boys and 20 girls (mean age 10.46 yrs) from 12:00 AM to 6:00 AM over 2 consecutive nights in their homes. Frequency of sleep-related behaviors based on retrospective parental ratings was assessed by the Children's Sleep Behavior Scale (CSBS). Children who were rated high on sleep behaviors with an observable motor component were also more active during the night, thereby validating the motor subscale of the CSBS. Nocturnal activity was associated with another CSBS-derived sleep score that included items with positive affective content, such as laughing and smiling while asleep. Children who showed bedtime resistance behaviors and complained of difficulty going to sleep were not more active during the night. Gender, age, and parental perception of daytime activity levels were not related to objective measures of nocturnal activity. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Increased prevalence of sleep disturbances and daytime sleepiness in subjects with bronchial asthma: a population study of young adults in three European countries

The aim of this study was to investigate whether asthma is associated with decreased quality of sleep and increased daytime sleepiness. The study involved a random population of 2,202 subjects supplemented by 459 subjects with suspected asthma, aged 20-45 yrs. The subjects were from Reykjavik (Iceland), Uppsala and G?teborg (Sweden) and Antwerp (Belgium), and participated in the European Community Respiratory Health Survey. The investigation included a structured interview, methacholine challenge, skinprick tests and a questionnaire on sleep disturbances. Participants in Iceland and Sweden also estimated their sleep times and made peak expiratory flow (PEF) recordings during a period of 1 week. Asthma was defined as self-reported physician-diagnosed asthma with current asthma-related symptoms (n = 267). Difficulties inducing sleep (DIS) and early morning awakenings (EMA) were about twice as common, and daytime sleepiness 50% more common, in asthmatics compared with subjects without asthma. After adjusting for possible confounders, a positive association was found between asthma and: DIS (odds ratio (OR) = 1.8); EMA (OR = 2.0); daytime sleepiness (OR = 1.6); snoring (OR = 1.7); and self reported apnoeas (OR = 3.7). Allergic rhinitis, which was reported by 71% of subjects with asthma, was independently related to DIS (OR = 2.0) and daytime sleepiness (OR = 1.3). A significant correlation was found between the number of asthma-related symptoms and sleep disturbances (p < 0.001). Asthma is associated with decreased subjective quality of sleep and increased daytime sleepiness. Concurrent allergic rhinitis may be an important underlying cause of sleep impairment in asthmatic patients.     

Yes, cavalier attitudes can have pernicious consequences.

Responds to the comments by J. J. Krueger, K. D. Vohs, and R. F. Baumeister (see record 2007-19520-015) on the current authors' original article, "Do people's self-views matter? Self-concept and self-esteem in everyday life" (see record 2007-01685-002). Krueger et al brought up many points with which the current authors agree. Nevertheless, as Krueger et al noted these points of agreement, the current authors focus instead on several points of continued disagreement. In addition, the current authors comment on a few new twists that Krueger et al have added to their argument. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Investigation of personality factors in a Canadian context. II. Standards of decision regarding personality factors in questionnaires.

Responds to commentary by DeYoung, writing from R. B. Cattell's laboratory, which criticized certain aspects of the methodology on which the current authors' substantive discoveries are based (see record 1971-29076-001). In this reply the authors not only have to defend their work on methodological grounds but must also indicate dissatisfaction with the methodology adopted by Cattell (1966). DeYoung points out, very properly, that factor analysts must give greater attention to precision of procedure and presentation. The current authors point out that they used widely accepted procedures, principal components followed by Varimax rotation. (PsycINFO Database Record (c) 2010 APA, all rights reserved)