State dependent learning in humans.
D000328:Adult; D000654:Amobarbital / Q000494:pharmacology*; D000661:Amphetamine / Q000494:pharmacology*; D001154:Art; D005556:Form Perception; D006801:Humans; D007266:Inhibition, Psychological; D008568:Memory / Q000187:drug effects*; D010919:Placebos; D011795:Surveys and Questionnaires; D013997:Time Factors
D010919:Placebos; D000661:Amphetamine; D000654:Amobarbital