Psychonomic Science

, Volume 10, Issue 7, pp 271–272 | Cite as

Shock-induced fighting as a function of the intensity and duration of the aversive stimulus

  • Paul I. Dreyer
  • Russell Church
Animal Psychology Social Behavior


Intensity and duration of an aversive stimulus were found to be determinants of the amount of pain-elicited aggression. The probability of fighting was a linear function of (a) the logarithm of the intensity of the shock and (b) the logarithm of the duration of the shock. An increase in the logarithm of the intensity produced approximately twice as great an increase in fighting as an equivalent increase in the duration of the shock.


Response Suppression Aversive Stimulus Shock Intensity Inescapable Shock Equivalent Increase 
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.


  1. AZRIN, N. H., ULRICH, R. E., HUTCHINSON, R. R., & NORMAN, D. G. Effect of shock duration on shock-induced fighting. J. exp. Anal. Behav., 1964, 7, 9–11.PubMedCrossRefGoogle Scholar
  2. CHURCH, R. M., RAYMOND, G. A., & BEAUCHAMP, R. D. Response suppression as a function of intensity and duration of a punishment. J. comp. physiol. Psychol., 1967, 63, 39–44.PubMedCrossRefGoogle Scholar
  3. HURVICH, L. M., & JAMESON, D. The Perception of Brightness and Darkness, Boston: Allyn and Bacon, Inc., 1966.Google Scholar
  4. ULRICH, R. E., & AZRIN, N. H. Reflexive fighting in response to aversive stimulation. J. exp. Anal. Behav., 1962, 5, 511–520.PubMedCrossRefGoogle Scholar

Copyright information

© Psychonomic Journals 1968

Authors and Affiliations

  • Paul I. Dreyer
    • 1
  • Russell Church
    • 1
  1. 1.Brown UniversityProvidenceUSA

Personalised recommendations