OBJECTIVES To investigate the independent effects of depression and subtypes of anxiety on insomnia, and vice versa, and the independent effect of chronotype on insomnia, depression, and subtypes of anxiety. METHODS In all, 318 South Australian high school students from grades 7-11 (age range, 12-18years; mean, 14.97±1.34) participated in this cross-sectional study. Validated self-report ques...

To define the individual features of organization circadian rhythms, term "chronotype" was proposed, which is becoming increasingly popular in research field medicine. According to analysis literature data, biological rhythm affects not only mental state, obesity but human condition as a whole. Biological rhythms are manifestation fundamental properties organic world, provide ability man adapt ...

The 44-item and 10-item Big Five Inventory (BFI) personality scales are widely used, but there is a lack of psychometric data for Chinese versions. Eight surveys (total N = 2,496, aged 18-82), assessed a Chinese-language BFI-44 and/or an independently translated Chinese-language BFI-10. Most BFI-44 items loaded strongly or predominantly on the expected dimension, and values of Cronbach's alpha ...

This study describes parental expectations for sleep-wake patterns in healthy kindergarten children and explores their relation to children's sleep quality and parental distress. Data analysis of 54 mother-child dyads (age range of the children: 4-7 years) indicated that parental expectations for children's sleep-wake patterns differ between scheduled and free days and depend on children's chro...

Sleep has strong links to the symptomology of fibromyalgia syndrome (FMS), a diffuse musculoskeletal pain disorder. Information about the involvement of the circadian clock is, however, sparse. In this study, 1548 individuals with FMS completed an online survey containing questions on demographics, stimulant consumption, sleep quality, well-being and subjective pain, chronotype (assessed by the...

OBJECTIVES To determine the off-shift sleep strategies of bi-ethnic night-shift nurses, the relationship between these sleep strategies and adaptation to shift work, and identify the participant-level characteristics associated with a given sleep strategy. METHODS African-American and non-Hispanic White female, night-shift nurses from an academic hospital were recruited to complete a survey o...

Time is a fundamental aspect of human experience. Whilst most research investigated major aspects of psychological time time duration, time succession, individual temporal orientation in isolation, this dissertation investigates interrelations between individual temporal orientation and time succession. Since psychological time is bound to cognitive abstraction processes that rely on cognitive ...

This study aimed to elucidate associations between stroke onset and severity as well as chronotype (phase of entrainment) and internal time of stroke. Fifty-six first-ever ischemic stroke patients participated in a cross-sectional study assessing chronotype (mid-sleep on work-free days corrected for sleep deficit on workdays; MSFsc) by applying the Munich ChronoType Questionnaire (MCTQ). The MC...

introduction: in modern societies, shift work is an essential component of daily life. since the beginning of research in shift work, researchers have been engaged in the identification of factors predicting adjustment and adaptation to shift work. the concept of adaptation and tolerance refers mainly to the biological response in terms of circadian rhythms and performance efficiency as well as...