Delayed Sleep Phase Syndrome

Weitzman, Elliot D.; Czeisler, Charles A.; Coleman, Richard M.; Spielman, Arthur J.; Zimmerman, Janet C.; Dement, William C.; Richardson, Gary S.; Pollak, Charles P.

doi:10.1001/archpsyc.1981.01780320017001

Cited by 468 publications

(64 citation statements)

References 26 publications

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“…Furthermore, participants in this sample reported a mean sleep length of 7 hours per night on weeknights and 8.37 hours per night on weekends. Coupled with poor sleep quality, these results imply that participants in this sample are likely experiencing symptoms of Delayed Sleep Phase Syndrome (DSPS), which includes symptoms of getting less sleep during the week and normal sleep on weekends (Weitzman et al, 1981). The results of the present study are consistent with previous research findings that college students report symptoms of DSPS especially as they transition into an independent lifestyle ).…”

Section: Discussionsupporting

confidence: 89%

College Students’ Prevalence of Sleep Hygiene Awareness and Practices

Felix

Campsen

White

et al. 2017

ASSRJ

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Research has consistently found that college students report short sleep length and poor sleep quality. As a result of their poor sleep quality, there is concern that college students may struggle with issues associated with academic performance, physical health, and mental health. Previous research has investigated a multitude of factors that may contribute to poor sleeping behaviors, including sleep hygiene awareness and practices. The current study found that participants were obtaining less than the recommended average hours of sleep. Results indicated an almost equal number of participants reported poor sleep quality, average sleep quality, and good sleep quality. Results also indicated that between 40-50% of the sample reported difficulties related going to bed, falling asleep, maintaining sleep, reinitiating sleep, and returning to wakefulness. Although participants in the present study reported sleep hygiene awareness, their knowledge is not associated with their sleep practices. Based on these results, it may be implied that improving or increasing sleep hygiene knowledge is not an intervention that would be effective in improving sleep hygiene practices.

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Section: Discussionsupporting

confidence: 89%

College Students’ Prevalence of Sleep Hygiene Awareness and Practices

Felix

Campsen

White

et al. 2017

ASSRJ

View full text Add to dashboard Cite

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“…No significant association was observed between the H4 haplotype and N-24, which often shows symptoms of DSPS during the course of the illness and is supposed to be caused by common underlying mechanisms (Weitzman et al, 1981;Campbell et al, 1999). In our study, 41 (85%) of the 48 DSPS patients did not carry the H4 haplotype (Table III); therefore, it is likely that DSPS is genetically heterogeneous with residual unknown genetic factors, of which some confer susceptibility to both DSPS and N-24.…”

Section: Discussionmentioning

confidence: 90%

Association of structural polymorphisms in the human period3 gene with delayed sleep phase syndrome

et al. 2001

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Recent progress in biological clock research has facilitated genetic analysis of circadian rhythm sleep disorders, such as delayed sleep phase syndrome (DSPS) and non-24-h sleep-wake syndrome (N-24). We analyzed the human period3 (hPer3) gene, one of the human homologs of the Drosophila clock-gene period (Per), as a possible candidate for rhythm disorder susceptibility. All of the coding exons in the hPer3 gene were screened for polymorphisms by a PCR-based strategy using genomic DNA samples from sleep disorder patients and control subjects. We identified six sequence variations with amino acid changes, of which five were common and predicted four haplotypes of the hPer3 gene. One of the haplotypes was significantly associated with DSPS (Bonferroni's corrected P = 0.037; odds ratio = 7.79; 95% CI 1.59-38.3) in our study population. Our results suggest that structural polymorphisms in the hPer3 gene may be implicated in the pathogenesis of DSPS.

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“…Yet the greater flexibility in sleep placement of Evening-types suggested by many studies also seems a risk factor for the development of Delayed Sleep Phase Syndrome (DSPS), characterized by difficulty in falling asleep at a socially acceptable time of night and inability to be easily aroused in the morning [e.g., Weitzman et al, 1981]. Once the person has retarded sleep onset, it is difficult to move sleep onset times earlier.…”

Section: Individual Differences In Morningness-eveningnessmentioning

confidence: 99%

“…While most studies have focused on adults, DSPS has also been documented in adolescents, and has led to the suggestion that onset of the syndrome may occur in conjunction with social pressures that lead to entrainment of sleep to late hours and hormonal changes associated with puberty [e.g., Carskadon et al, 1993;Dahl and Carskadon, 1995]. However, clinical descriptions of DSPS from adults sometimes include persistence of symptoms since childhood [e.g., Weitzman et al, 1981]. Some adolescent descriptions also include reference to childhood onset [Thorpy et al, 1988] and there are reports of children with insomnia that appear to be related to delayed sleep phase [Ferber, 1987].…”

Section: Individual Differences In Morningness-eveningnessmentioning

confidence: 99%

“…Bright light and melatonin therapies have been effective in altering circadian rhythmicity, particularly in laboratory settings [Czeisler et al, 1986[Czeisler et al, , 1989[Czeisler et al, , 1990Eastman, 1992;Eastman et al, 1995b;Eastman and Miescke, 1990;Haimov and Lavie, 1996;Weitzman et al, 1981]. 4 E-types are more responsive to bright light in shift work studies than M-types .…”

Section: Individual Differences In Morningness-eveningnessmentioning

confidence: 99%

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Developmental Perspectives on Morningness-Eveningness and Social Interactions

et al. 1999

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Developmental perspectives on sleep/wake rhythmicity have been neglected in research, yet evidence from chronobiological sources, infant sleep data, and adult light treatment studies suggest continuities in individual differences in internal synchronization to light-dark cycles. Developmental systems suggest maintenance through strong contextual constraints, perturbed only by unusual alterations in social demands and light exposure, such as shift work. Retrospective data from university students, employing the Morningness-Eveningness Questionnaire (MEQ), supported predicted continuity of sleep/wake patterns and associated states of alertness and fatigue as a function of time of day as well as relations with different patterns of social interactions with parents over daily routines in childhood and adolescence. Eveningness is related to greater difficulty meeting familial and social demands for morning performance than Morningness.

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Delayed Sleep Phase Syndrome

Cited by 468 publications

References 26 publications

College Students’ Prevalence of Sleep Hygiene Awareness and Practices

College Students’ Prevalence of Sleep Hygiene Awareness and Practices

Association of structural polymorphisms in the human period3 gene with delayed sleep phase syndrome

Developmental Perspectives on Morningness-Eveningness and Social Interactions

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