Low doses of caffeine can serve as reinforcers in humans.
Oliveto
A H
AH
University of Vermont, Department of Psychiatry, Burlington 05401.
Hughes
J R
JR
Pepper
S L
SL
Bickel
W K
WK
Higgins
S T
ST
D002110:Caffeine / Q000008:administration & dosage / Q000494:pharmacology*; D003216:Conditioning, Operant / Q000187:drug effects*; D006801:Humans; D012054:Reinforcement, Psychology
D002110:Caffeine