Will I Feel This in my Dreams? Examining Temporal Associations between Daytime and Dream Affect

Abstract

Abstract Despite the theory that dreams function to process emotions, few studies have examined how emotional experiences during daytime (“daytime affect”) are associated with the emotional tone of dreams (“dream affect”) that night, and vice versa. This study examined bidirectional associations between dream affect and daytime positive and negative affect. Participants were 84 nurses who completed two weeks of ecological momentary assessments. If participants remembered the previous night’s dreams (nparticipants=68; ndays=391), they reported the dream’s emotional tone upon waking (‘0’=very negative to ‘100’=very positive). Participants also responded to the Positive and Negative Affect Scale three times/day. Multilevel modeling simultaneously tested two temporal directions (daytime affect→dream affect, dream affect→daytime affect) at the within- and between-person levels. After adjusting for socio-demographic and work characteristics, at the within-person level, dream affect was more positive than usual on nights following more positive daytime affect (B=0.25, p=.003). In the other temporal direction, dream affect was not associated with the following day’s positive affect. At the between-person level, nurses who reported more positive dream affect also reported more positive daytime affect (B=0.24, p=.025). No associations emerged with negative affect. Findings suggest that daytime affect is associated with the emotional tone of that night’s dreams, but only in the context of positive affect. Importantly, negative affect was relatively low in this sample, so different patterns may emerge for people more prone to negative affect. Overall, these novel findings support the theory that dreams serve to process emotions, providing insight into the mystery of the function of dreams.