title: The experimenter variable in dream research.
mesh_terms: D000223:Adaptation, Psychological; D000367:Age Factors; D001007:Anxiety; D004325:Dreams; D004569:Electroencephalography; D004777:Environment; D005260:Female; D006791:Hostility; D006801:Humans; D008297:Male; D008568:Memory; D010551:Personality; D012737:Sex Factors; D012895:Sleep, REM