The effect of caffeine and seconal on a visual discrimination task.
D001463:Barbiturates / Q000494:pharmacology*; D002110:Caffeine / Q000494:pharmacology*; D006801:Humans; D012631:Secobarbital; D014796:Visual Perception
D001463:Barbiturates; D012631:Secobarbital; D002110:Caffeine
BARBITURATES/pharmacology; CAFFEINE/pharmacology