cal correlation research offers such a low rate of return for effort that it is not a wise focus for limited resources available for dream research (Bootzin, Kihlstrom, & Schacter, 1990, p. 118).
It has been found that lucid dreamers can control various physiological responses during their dreams. Predetermined actions can be signaled to the laboratory researchers, and lucid dreamers can carry out diverse dream experiments making the exact time of particular dream events. LaBerge reported in 1985 that subjects could report various stages of their lucid dreams with fingertip movements, and LaBerge and Dement found in another study in the 1980s that lucid dreamers could voluntarily control their rate of
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