TY - JOUR AU - Nixon, Ashley AU - Robidoux, RaphĂȘlle AU - Dale, Allyson AU - De Koninck, Joseph PY - 2017/11/01 Y2 - 2024/03/28 TI - Pre-sleep and post-sleep mood as a complementary evaluation of emotionally impactful dreams JF - International Journal of Dream Research JA - ijodr VL - 10 IS - 2 SE - Articles DO - 10.11588/ijodr.2017.2.35411 UR - https://journals.ub.uni-heidelberg.de/index.php/IJoDR/article/view/35411 SP - 141-150 AB - <p>Impactful dreams are reported by the dreamer to have an effect on their waking mood. However, the time course relationship of negative and positive impactful dreams with pre-sleep and post-sleep mood has not been examined closely. A total of 32 participants (21 females) reported one dream self-rated as either very or extremely emotionally impactful and one dream self-rated as not at all emotionally impactful (mundane dream), totalling 64 dreams. Participants completed a dream diary as well as pre-sleep, dream, and post-sleep mood checklists. They also completed rating scales of the impact of their dreams. The Hall &amp; Van de Castle method was used for dream coding and analysis. A dream containing more positive than negative emotions was classified as positively impactful and vice versa. The 2 x 3 analysis of variance demonstrated a significant difference between mundane dreams and both negative and positive impactful dreams. Overall, negative impactful dreams were associated with higher negative mood levels at pre-sleep, in dream, and at post-sleep, compared to mundane dreams. Conversely, positive impactful dreams were associated with more positive mood levels during the dream and at post-sleep, but not at pre-sleep. Correlational analyses demonstrated that in negative impactful dreams, negative dream mood strongly correlated with negative post-sleep mood. Similarly, in positive impactful dreams, positive dream mood strongly correlated with positive post-sleep mood. However, pre-sleep and dream mood, whether positive or negative, did not significantly correlate. Additionally, there was a significant correlation between pre-sleep and post-sleep positive mood in positive impactful dreams and mundane dreams. These results confirm that dream mood and post-sleep mood are positively related, further suggesting a potential effect on post-sleep mood. The absence of a relationship between pre-sleep and dream mood undermines the continuity theory as well as modern dream function theories for emotions. The threat simulation theory is also used to interpret results. </p> ER -