title: Day-to-day associations between subjective sleep and affect in regard to future depression in a female population-based sample.
abstract: BACKGROUND
  Poor sleep is a risk factor for depression, but little is known about the underlying mechanisms.
  
  
  OBJECTIVE
  Disentangling potential mechanisms by which sleep may be related to depression by zooming down to the 'micro-level' of within-person daily life patterns of subjective sleep and affect using the experience sampling method (ESM).
  
  
  METHODS
  A population-based twin sample consisting of 553 women underwent a 5-day baseline ESM protocol assessing subjective sleep and affect together with four follow-up assessments of depression.
  
  
  RESULTS
  Sleep was associated with affect during the next day, especially positive affect. Daytime negative affect was not associated with subsequent night-time sleep. Baseline sleep predicted depressive symptoms across the follow-up period.
  
  
  CONCLUSIONS
  The subtle, repetitive impact of sleep on affect on a daily basis, rather than the subtle repetitive impact of affect on sleep, may be one of the factors on the pathway to depression in women.
authors: Department of Psychiatry and Psychology, Maastricht University, PO Box 616, 6200 MD Maastricht, The Netherlands. j.dewild-hartmann@maastrichtuniversity.nl
authors: Jessica A
authors: JA
authors: de Wild-Hartmann
authors: Marieke
authors: M
authors: Wichers
authors: Alex L
authors: AL
authors: van Bemmel
authors: Catherine
authors: C
authors: Derom
authors: Evert
authors: E
authors: Thiery
authors: Nele
authors: N
authors: Jacobs
authors: Jim
authors: J
authors: van Os
authors: Claudia J P
authors: CJ
authors: Simons
mesh_terms: D000293:Adolescent; D000328:Adult; D000339:Affect / Q000502:physiology*; D003866:Depressive Disorder / Q000453:epidemiology*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008875:Middle Aged; D009426:Netherlands / Q000453:epidemiology; D035781:Siblings; D012890:Sleep / Q000502:physiology*; D011795:Surveys and Questionnaires; D014427:Twins / Q000706:statistics & numerical data; D055815:Young Adult