Overnight affective dynamics and sleep characteristics as predictors of depression and its development in women

O. Minaeva*, S.V. George, A. Kuranova, N. Jacobs, E. Thiery, C. Derom, M. Wichers, H. Riese, S.H. Booij

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review


Study Objectives: We examined (1) differences in overnight affective inertia (carry-over of evening affect to the next morning) for positive (PA) and negative affect (NA) between individuals with past, current, and no depression; (2) how sleep duration and quality influence overnight affective inertia in these groups, and (3) whether overnight affective inertia predicts depression development.Methods: We used data of 579 women from the East-Flanders Prospective Twin Survey. For aim 1 and 2, individuals with past (n = 82), current (n = 26), and without (lifetime) depression (n = 471) at baseline were examined. For aim 3, we examined individuals who did (n = 58) and did not (n= 319) develop a depressive episode at 12-month follow-up. Momentary PA and NA were assessed 10 times a day for 5 days. Sleep was assessed daily with sleep diaries. Affective inertia was operationalized as the influence of evening affect on morning affect. Linear mixed-effect models were used to test the hypotheses.Results: Overnight affective inertia for NA was significantly larger in the current compared to the non-depressed group, and daytime NA inertia was larger in the past compared to the non-depressed group. Overnight NA inertia was differently associated with shorter sleep duration in both depression groups and with lower sleep quality in the current compared to the non-depressed group. Overnight affective inertia did not predict depression development at 12-month follow-up.Conclusions: Current findings demonstrate the importance of studying complex affect dynamics such as overnight affective inertia in relation to depression and sleep characteristics. Replication of these findings, preferably with longer time-series, is needed.
Original languageEnglish
Article numberzsab129
Number of pages12
JournalSleep (Online)
Issue number10
Publication statusPublished - 1 Oct 2021


  • affective inertia
  • autocor relation
  • depression
  • experience sampling method
  • negative affect
  • positive affect
  • sleep quality
  • sleep duration


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