I believe I recall that lucid dreaming tests were done where you would signal you were lucid via some eye movement. Pairing the eye movement with the recall aft

I believe I recall that lucid dreaming tests were done where you would signal you were lucid via some eye movement. Pairing the eye movement with the recall after the fact would seem to show its not all made up at the time of recovery, though perhaps it could be expanded upon at recall time.