Testing affect regulation theories of dreaming
Clinical Snapshot
PICO Framework
| P — Population | Community sample of 536 adults (85.6% women, mean age 39.3±17.3 years) |
| I — Intervention | Dream fear content and emotion regulation strategies (natural exposure) |
| C — Comparator | Varying levels of dream fear and emotion regulation capacity |
| O — Outcomes | Morning negative affect (NA), positive affect (PA), and emotion regulation capacity |
Bottom Line
This large prospective study challenges simple affect regulation theories of dreaming by demonstrating that frightening dreams actually increase next-day negative affect rather than providing emotional relief through fear extinction. The 7% increase in negative affect was paradoxically stronger among individuals with better emotion regulation skills. However, dreams combining fear with joy showed protective effects, with 20% higher odds of waking without negative affect. The findings suggest dreaming serves complex, individual-level adaptive functions rather than universal affect regulation. While methodologically robust with objective dream content analysis and sophisticated statistical modeling, the study's clinical implications remain unclear. The research primarily advances theoretical understanding of sleep-emotion relationships rather than providing immediate therapeutic applications. Australian clinicians should interpret these findings cautiously, as the predominantly female US sample may not represent local populations, and the mechanisms underlying these dream-affect relationships require further investigation before informing clinical practice.
Key Findings
P Value: pd = 100% (Bayesian equivalent)
Effect Size: +7% increase in negative affect
Primary Outcome: Morning negative affect following frightening dreams
Nnt Or Sensitivity: 20% higher odds of zero negative affect for mixed fear-joy dreams
Confidence Interval: Bayesian posterior probability = 100%
Clinical Application
Limited direct clinical application; primarily research findings informing understanding of sleep-emotion relationships Relevant to Australian sleep medicine and psychology practice; findings may inform therapeutic approaches but require validation in Australian populations Adults experiencing regular dream recall, particularly those with emotion regulation difficulties
Abstract
STUDY OBJECTIVES: Dreaming is theorized to regulate waking affect via fear extinction learning, similar to exposure therapy. We tested whether fear in dreams was associated with lower negative affect (NA) and higher positive affect (PA) on subsequent mornings and whether these effects were moderated by emotion regulation strategies or mixed dream emotion states. Additionally, we examined whether individuals with higher average dream fear showed more adaptive emotion regulation. METHODS: We employed a natural language processing tool and Bayesian multilevel modeling using online daily survey data in a community sample (n = 536; 85.6% women; Mage = 39.3 ± 17.3; days = 4715). RESULTS: Frightening dreams were associated with more negative affect the following morning (+7% NA, pd = 100%), which was amplified for individuals with more adaptive emotion regulation (+3% NA, pd = 98.69). Dreams concurrently high in fear and joy were related to 20% higher odds of zero NA the next morning (pd = 97.82%). Higher average dream joy was related to 9% higher morning PA (pd = 98.79%). Individuals with higher average dream fear showed greater adaptive emotion regulation (β = 0.18, pd = 99.93%). CONCLUSIONS: Findings supported affect continuity from dream to wake, yet affect regulation at the individual level. Frightening dreams were related to worse morning affect, with a more pronounced effect among high-regulation individuals. High-regulation individuals tended to experience more fearful dreams. Mixed dream emotions were related to mornings without NA, and dream joy was related to higher morning PA. Our findings suggest adaptive, though dynamic, effects of dream emotions on psychological functioning.
References
- 1.Baber, G. R., Hamilton, N. A., Girard, J. M., Sikka, P., Watts, A., Jun, D., Gratton, M. K. P., Cohen, J. M., Quesada, A. K., Nichols, E. C., & Cunningham, T. J. (2026). Testing affect regulation theories of dreaming. Sleep. https://doi.org/10.1093/sleep/zsag046
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