Perceived change in the affect associated with dreams: The fading affect bias and its moderators.

Eighty-two undergraduate participants kept dream diaries for a month. Five dreams were randomly selected from each diary and were returned to participants. They rated the affect produced by the dream at its occurrence and at its recall, as well as a number of other characteristics of the dream and characteristics of the context in which the dream occurred. Results revealed that, like memories for real autobiographical events, the negative affect associated with dreams generally faded faster than the positive affect associated with dreams (a Fading Affect Bias, or FAB). The data also showed that the FAB did not occur for: (a) dreams that were remembered to contain information that dreamers believed came true at a later date, (b) dreamers who had reportedly taken recreational drugs prior to their dream, (c) dreams remembered as lacking sound, and (d) dreams remembered as very quiet.