Scientific History
The first book to recognize the scientific potential of lucid dreams was Celia Green's 1968 study Lucid Dreams. Green analyzed the main characteristics of such dreams, reviewing previously published literature on the subject and incorporating new data from subjects of her own. She concluded that lucid dreams were a category of experience quite distinct from ordinary dreams, and predicted that they would turn out to be associated with rapid eye movement sleep (REM sleep). Green was also the first to link lucid dreams to the phenomenon of false awakenings.
Philosopher Norman Malcolm's 1959 text Dreaming had argued against the possibility of checking the accuracy of dream reports. However, the realization that eye movements performed in dreams may affect the dreamer's physical eyes provided a way to prove that actions agreed upon during waking life could be recalled and performed once lucid in a dream. The first evidence of this type was produced in the late 1970s by British parapsychologist Keith Hearne. A volunteer named Alan Worsley used eye movements to signal the onset of lucidity, which were recorded by a polysomnograph machine.
Hearne's results were not widely distributed. The first peer-reviewed article was published some years later by Stephen LaBerge at Stanford University, who had independently developed a similar technique as part of his doctoral dissertation. During the 1980s, further scientific evidence to confirm the existence of lucid dreaming was produced as lucid dreamers were able to demonstrate to researchers that they were consciously aware of being in a dream state (again, primarily using eye movement signals). Additionally, techniques were developed that have been experimentally proven to enhance the likelihood of achieving this state.
Read more about this topic: Lucid Dream
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