Overview
- Twenty volunteers with lucid-dream experience learned puzzles paired with unique sounds, then slept in a lab with REM verified by polysomnography.
- During REM, researchers replayed sounds for some unsolved puzzles, which increased dream mentions of those specific problems.
- Participants solved 42% of puzzles that appeared in dreams versus 17% of puzzles that did not, with actually dreaming about the puzzle proving critical.
- Six sleepers signaled lucidity with preset eye or breathing patterns, and roughly three-quarters reported dreams related to the unsolved tasks.
- Effects varied across individuals and lucid dreams were not consistently superior; the peer-reviewed paper, published Feb. 5 in Neuroscience of Consciousness, notes the small, specialized sample and the need for larger replications.