Random
The occurrence of the characteristic eye movements found in REM sleep and their relation to dreaming were confirmed in both normal participants and who else?
Schizophrenics
How often did participants DM and WD have an eye movement period (during their sleep)?
DM and WD averaged one eye-movement period every 70 min. and every 75 mins.
When was the participant to be considered or believed to dreaming (by the researchers)?
The Ss were considered to have been dreaming only if they could relate a coherent, fairly detailed description of dream content.
What other factors affected the lengths of dream narratives?
Lengths of the dream narratives were undoubtedly influenced by many other factors as, for example, the loquacity (talkativeness) or taciturnity (reserved).
How many awakenings were there in the first two hours of sleep (as a percentage)?
21% of the awakenings fell in the first 2 hr. of sleep
What speed did the electroencephalograph (EOG) run on?
The electroencephalograph was run continuously throughout the sleep period at a paper speed of 3 or 6 mm. per sec.
How were the timings chosen regarding the awakenings for participants PM and KC?
The REM or NREM awakenings for PM and KC were chosen according to a table of random numbers to eliminate any possibility of an unintentional pattern.
How many times did the participants incorrectly choose 15 minutes?
13 times (in total)
How often did participant KC have an eye movement period (during their sleep)?
KC averaged one eye-movement period every 104 mins.
What was the faster speed on the electroencephalograph used for?
A faster speed (3 cm./sec.) was used for detailed examination of the brain waves
How were the timings chosen regarding the awakenings for participant DN?
For DN, a pattern was followed: first three REM awakenings, then three NREM awakenings, and so on.
Of the 152 dreams recalled, how many were not included?
Of the 152 dreams recalled, 26 were not included because poor recording did not allow complete transcription.