H-reflex suppression and autonomic activation during lucid REM sleep: a case study.
Sleep August 1, 1989 A Brylowski, Lynne Levitan, Stephen LaBerge
A single subject, a proficient lucid dreamer experienced with signaling the onset of lucidity (reflective consciousness of dreaming) by means of voluntary eye movements, spent 4 nonconsecutive nights in the sleep laboratory. The subject reported becoming lucid and signaling in 8 of the 18 rapid-eye movement (REM) periods recorded. Ten lucid dream reports were verified by polygraphic examination...