From their studies, there was a total of eight lucid dreams and they said all of the dreams occurred during REM sleep. Another researcher, named Olgilvie, also studied lucid dreaming. "Olgilvie reported the physiological state preceding 14 spontaneous lucidity signals as unqualified REM in 12 (86%) of the cases; of the remaining two cases, one was ambiguous REM and the other appeared to be wakefulness" (LaBerge, 1990). According to Olgilvie's research, lucid dreams normally occur during REM sleep, but there is always a slight chance they occur at other times. Many other laboratories that study lucid dreaming agree with LaBerge, Hearne and Worsley, and Olgilvie that lucid dreams take place during REM sleep. Lucid dreams come about in two different ways. In the usual type of dream, people are right in the middle of REM sleep, when suddenly something unusual happens causing enough image and representation for them to slow down and become aware that they are dreaming. This is also known as a Dream-initiated Lucid Dream (DILD). In all of the lucid dreams people have, 80% are said to be dream-initiated. In the other less common type, people are briefly awakened during a dream, but fall directly back to sleep going into the dream again. This all happens very quickly with no or very little break in consciousness. This type of lucid dream is commonly known as a Wake-Initiated Lucid Dream (WILD). "LaBerge's data indicates that while lucid dreams do not take place during interludes of wakefulness within REM periods, a minority of lucid dreams (WILDs) are initiated from these moments of transitory arousal, with the WILDs continuing in subsequent undisturbed REM sleep" (LaBerge, 1990). Out of body experiences (OBEs) are experiences when people feel like they are seeing the world from somewhere other than their physical bodies. The out of the body person will feel like they are in a world like the one they are in while awake.
