A marker for the end of adolescence

Roenneberg, Till; Kuehnle, Tim; Pramstaller, Peter P.; Ricken, Jan; Havel, Miriam; Guth, Angelika; Merrow, Martha

doi:10.1016/j.cub.2004.11.039

Cited by 1,263 publications

(1,195 citation statements)

References 17 publications

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“…The movement away from Morningness associated with increasing age was reliable, F(3, 255) = 5.30, p = . 001, ν 2 = .06, replicating other findings (e.g., Kim et al, 2002;Roenneberg et al, 2004).…”

Section: Chronotype Preferencessupporting

confidence: 85%

“…The mechanisms that underlie the adolescent shift away from Morningness may have environmental, social, and biological underpinnings (Carskadon et al, 1993;Kim et al, 2002;Roenneberg et al, 2004). Whatever the source of this shift, our evidence suggests that Evening-type adolescents are far more likely than Morning-types to fall into the borderline/ clinical category of the most widely used behavioral assessment instrument.…”

Section: Discussionmentioning

confidence: 79%

“…Of particular interest for school performance is the fact that children move away from being Morning-types towards being Evening-types early in adolescence (e.g., Kim, Dueker, Hasher, & Goldstein, 2002;Roenneberg et al, 2004), a change that when coupled with an early start to the school day and potential sleep deficits (e.g., Andershed, 2005;Carskadon, Wolfson, Acebo, Tzischinsky, & Seifer, 1998), may create special problems for Evening-type teens. Research on sleep, for example, suggests that for adolescent girls in Brazil, school performance improves through the school day while self-reported sleepiness decreases (Andrade & MennaBarreto, 1996).…”

Section: Introductionmentioning

confidence: 99%

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Time of day, intellectual performance, and behavioral problems in Morning versus Evening type adolescents: Is there a synchrony effect?

Goldstein

Hahn

Hasher

et al. 2007

Personality and Individual Differences

257

177

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We administered measures of fluid and crystallized intelligence to Morning-and Evening-type adolescents who were tested either during a morning session or an afternoon session, at times chosen to reflect the limits of the average school day schedule. For the fluid intelligence measures, there was a synchrony effect, with better performance at times that matched individuals' preferences. A composite measure of the subtests used (block design, digit span, and vocabulary) computed to a 6 point difference in IQ estimates. We also assessed the behavioral adjustment of these participants and found heightened levels of maladaptive behavior for Evening-type adolescents. Adolescents tested at their nonoptimal times of day and adolescents who are Evening-types appear to be at risk for poor academic performance and Evening-types appear to be at risk for behavioral adjustment problems.

show abstract

Section: Chronotype Preferencessupporting

confidence: 85%

Section: Discussionmentioning

confidence: 79%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Time of day, intellectual performance, and behavioral problems in Morning versus Evening type adolescents: Is there a synchrony effect?

Goldstein

Hahn

Hasher

et al. 2007

Personality and Individual Differences

257

177

View full text Add to dashboard Cite

show abstract

“…The MCTQ is used to calculate the MSF as the mid-point between sleep onset and sleep end. MSF was corrected for oversleep on free days (MSF sc : Mid Sleep point on Free days, Sleep Corrected) that occurs as a result of sleep debt [MSF sc = MSF – (SDf – ((((nWD × SDw) + (7 − nWD)) × SDf)/7)), where SDf is the sleep duration of free days, SDw is the sleep duration of workdays and nWD is the number of workdays (Roenneberg et al 2004). In cases where the numbers of workdays were missing, five workdays were assigned.…”

Section: Methodsmentioning

confidence: 99%

Chronotype and environmental light exposure in a student population

Porcheret

Wald

Fritschi

et al. 2018

Chronobiology International

Self Cite

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In humans and most other species, changes in the intensity and duration of light provide a critical set of signals for the synchronisation of the circadian system to the astronomical day. The timing of activity within the 24 h day defines an individual’s chronotype, i.e. morning, intermediate or evening type. The aim of this study was to investigate the associations between environmental light exposure, due to geographical location, on the chronotype of university students. Over 6 000 university students from cities in the Northern Hemisphere (Oxford, Munich and Groningen) and Southern Hemisphere (Perth, Melbourne and Auckland) completed the Munich ChronoType Questionnaire. In parallel, light measures (daily irradiance, timing of sunrise and sunset) were compiled from satellite or ground stations at each of these locations. Our data shows that later mid-sleep point on free days (corrected for oversleep on weekends MFSsc) is associated with (i) residing further from the equator, (ii) a later sunset, (iii) spending more time outside and (iv) waking from sleep significantly after sunrise. However, surprisingly, MSFsc did not correlate with daily light intensity at the different geographical locations. Although these findings appear to contradict earlier studies suggesting that in the wider population increased light exposure is associated with an earlier chronotype, our findings are derived exclusively from a student population aged between 17 and 26 years. We therefore suggest that the age and occupation of our population increase the likelihood that these individuals will experience relatively little light exposure in the morning whilst encountering more light exposure later in the day, when light has a delaying effect upon the circadian system.

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“…a delay in the secretion of endogenous markers of circadian rhythmicity), with a peak (and thus the latest sleep time) at around the age of 22 years. This peak is thought to be a biological marker of the end of adolescence (Roenneberg et al 2004). Rather than simply being a lengthening of the circadian period in adolescents, this phase delay is considered to be the result of a reorganisation of the circadian system and its interaction with homeostatic sleep pressure (Carskadon 2008;Hagenauer et al 2009).…”

mentioning

confidence: 99%

Sleep in Childhood and Adolescence: Age-Specific Sleep Characteristics, Common Sleep Disturbances and Associated Difficulties

Barclay

Gregory

2013

Current Topics in Behavioral Neurosciences

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Sleep changes throughout the lifespan, with particularly salient alterations occurring during the first few years of life, as well as during the transition from childhood to adolescence. Such changes are partly the result of brain maturation; complex changes in the organisation of the circadian system; as well as changes in daily routine, environmental demands and responsibilities.Despite the automaticity of sleep, given that it is governed by a host of complex mechanisms, there are times when sleep becomes disturbed. Sleep disturbances in childhood are common and may stem from behavioural difficulties or abnormalities in physiological processes and, in some cases manifest into diagnosable sleep disorders. As well as occurring exclusively, childhood sleep disturbances often co--occur with other difficulties. The purpose of this chapter is to outline the neurobiology of typical sleep/wake processes, and describe changes in sleep physiology and architecture from birth to adulthood. Furthermore, common childhood sleep disorders are described as are their associations with other traits, including all of the syndromes presented in this handbook: ASDs, ADHD, schizophrenia, and emotional/ behavioural difficulties. Throughout, we attempt to explain possible mechanisms underlying these disorders and their associations.

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A marker for the end of adolescence

Cited by 1,263 publications

References 17 publications

Time of day, intellectual performance, and behavioral problems in Morning versus Evening type adolescents: Is there a synchrony effect?

Time of day, intellectual performance, and behavioral problems in Morning versus Evening type adolescents: Is there a synchrony effect?

Chronotype and environmental light exposure in a student population

Sleep in Childhood and Adolescence: Age-Specific Sleep Characteristics, Common Sleep Disturbances and Associated Difficulties

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