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Emotional content of dreams in obstructive sleep apnea-hypopnea syndrome patients and sleepy snorers attending a sleep-disordered breathing clinic
Journal of Clinical Sleep Medicine, Volume: 7, Issue: 1, Pages: 69 - 74
Swansea University Author: Mark Blagrove
Study Objectives: To assess prospectively the emotional content of dreams in individuals with the obstructive sleep apnea hypopnea syndrome (OSAHS) and sleepy snorers.Methods: Prospective observational study. Forty-seven patients with sleepiness and snoring attending a sleep-disordered breathing cli...
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Journal of Clinical Sleep Medicine
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Study Objectives: To assess prospectively the emotional content of dreams in individuals with the obstructive sleep apnea hypopnea syndrome (OSAHS) and sleepy snorers.Methods: Prospective observational study. Forty-seven patients with sleepiness and snoring attending a sleep-disordered breathing clinic, completed a morning diary concerning pleasantness/unpleasantness of their dreams for 10 days, and then had AHI assessed by a limited-channel home sleep study. Participants and groups: Sleepy snorers, AHI < 5: n = 12 (mean age = 51.00 years [SD 7.01], 7 males); AHI 5 -14.9, n = 14 (mean age = 49.71 y [9.73], 12 males); AHI >= 15, n = 21 (mean age = 56.33 [11.24], 16 males).Results: All groups reported similar numbers of dreams and nightmares during the diary period. The AHI >= 15 group were significantly higher on dream unpleasantness than were the sleepy snorers (p < 0.05); and when only males were analyzed, this difference was also significant (p = 0.01). As AHI in-creased across the 3 groups, there was a significant decrease in variability of dream emotions (Levene test for homogeneity of variance between the 3 groups, p = 0.018). Mean daytime anxiety and daytime depression were significantly correlated with mean dream unpleasantness and with mean number of nightmares over the diary period.Conclusions: Patients with AHI >= 15 had more emotionally negative dreams than patients with AHI < 5. The variation in mean dream emotion decreased with increasing AHI, possibly because sleep fragmentation with increasing AHI results in fewer and shorter dreams, in which emotions are rarer.
Faculty of Medicine, Health and Life Sciences