Completeness and accuracy of morning reports after a recall cue: comparison of dream and film reports.
Our goal was to test the efficiency and accuracy of a complementary morning report, after recall cue, of an experience (having a dream or viewing a film) made and first described during the night. Twenty participants were awakened 10 min after the onset of the second REM sleep. Upon awakening, on one night they described the dream they just had and on the other night they were presented a 4-min video, then had to describe it. A new description requested in the morning after a recall cue yielded an important amount of new information both for the film and the dreams, and for the film, where the accuracy could be checked, 86% of this new information was accurate. Some aspects of the results pointed to an effect of hypermnesia. In conclusion, the morning additional information after recall cue stems from a good access to the memory of the night experience.
Montangero
Jacques
J
Department of Psychology, University of Geneva, FPSE, 40 Boulevard du Pont-d'Arve, CH 1211 Geneva 4, Switzerland. jacques.montangero@pse.unige.ch
Ivanyi
Corinne Tihon
CT
de Saint-Hilaire
Zara
Z
D000328:Adult; D004325:Dreams; D005260:Female; D006801:Humans; D008297:Male; D011939:Mental Recall; D010507:Periodicity; D015203:Reproducibility of Results; D012890:Sleep / Q000502:physiology*; D014741:Video Recording