The Relationship Between the Dim Light Melatonin Onset and Sleep on a Regular Schedule in Young Healthy Adults

Autor: Drew Dawson, Helen J. Burgess, Gregory D. Roach, Natasha Savic, Saul S. Gilbert, Tracey L. Sletten
Přispěvatelé: Dawson, William Andrew, Gilbert, Saul Steven, Roach, Gregory Daniel, Burgess, Helen, Savic, Natasha, Sletten,Tracey Leanne
Rok vydání: 2003
Předmět:
Zdroj: Behavioral Sleep Medicine. 1:102-114
ISSN: 1540-2010
1540-2002
DOI: 10.1207/s15402010bsm0102_3
Popis: The endogenous melatonin onset in dim light (DLMO) is a marker of circadian phase that can be used to appropriately time the administration of bright light or exogenous melatonin in order to elicit a desired phase shift. Determining an individual's circadian phase can be costly and time-consuming. We examined the relationship between the DLMO and sleep times in 16 young healthy individuals who slept at their habitual times for a week. The DLMO occurred about 2 hours before bedtime and 14 hours after wake. Wake time and midpoint of sleep were significantly associated with the DLMO (r = 0.77, r = 0.68 respectively), but bedtime was not (r = 0.36). The possibility of predicting young healthy normally entrained people's DLMOs from their sleep times is discussed.
Databáze: OpenAIRE