The aims of the experiment were: (1) to establish the proportion of sleep stages in morning spontaneous awakening and to observe whether any stage-dependent differences can be found in the mentation reports; and (2) to compare the characteristics of mental activity during sleep onset (SO) and during the latest sleep period. One hundred forty-four dream reports and their association reports were...
Thirty-six mentation reports (24 dream reports and 12 simulated dream reports) were provided by six subjects during experimental sessions. Dream reports were collected upon REM and Sleep Onset experimental awakenings. Artificial reports were obtained by asking the subject: “Try to invent a dream and tell me it as you go along.” To detect differences between the two types of reports, comparisons...