Unconditioned Stimulus Functions of Drugs: Interpretations

  • Howard F. Hunt
  • Milton A. Trapold


This volume as a whole emphasizes that drugs and their effects can be conceptualized analytically as “stimuli” having three important stimulus functions—eliciting, reinforcing, and discriminative functions. In their eliciting function, drugs can act as unconditioned stimuli in a Pavlovian or Type-S conditioning paradigm; that is, drug effects, paired with other stimuli in the Pavlovian mode, can endow those stimuli with new behavior-eliciting powers. This is not quite the same as saying, however, that only the responses elicited by the drug have been conditioned to the new stimulus, as Pavlovian conditioned responses, or that the conditioned changes that have taken place must be interpreted as exclusively Pavlovian.


Conditioned Stimulus Unconditioned Stimulus Classical Conditioning Heroin User Visceral Response 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Plenum Press, New York 1971

Authors and Affiliations

  • Howard F. Hunt
    • 1
  • Milton A. Trapold
    • 2
  1. 1.Department of PsychiatryColumbia UniversityNew YorkUSA
  2. 2.Departments of PsychologyUniveristy of MinnesotaMinneapolisUSA

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