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Journal of the Experimental Analysis of Behavior logoLink to Journal of the Experimental Analysis of Behavior
. 1970 Nov;14(3):321–329. doi: 10.1901/jeab.1970.14-321

The effect of shock intensity upon responding under a multiple-avoidance schedule1

Robert W Powell
PMCID: PMC1333743  PMID: 16811479

Abstract

The effect of two shock intensities (1.00 and 2.00 mA) were studied in the acquisition, maintenance, and extinction of unsignalled avoidance by albino rats. Single and multiple avoidance schedules were employed, with shock intensity being the principal condition that differed between schedule components. The higher shock intensity was generally more effective in producing avoidance. Higher response rates and lower shock rates were observed under high-intensity shock when performance stabilized. When the multiple schedule was introduced, the six rats trained under a single shock intensity all showed poorer performance under the new shock intensity, whether it was higher or lower than the training intensity. Performance under the original shock intensity did not change substantially with the introduction of a different shock intensity in the other multiple schedule component. Performance under the new shock intensity showed gradual improvement with continued exposure to it. All of the rats showed persistent “warm-up”, receiving approximately 40% of the total session shocks in the first one-sixth of the session. The degree of warm-up was unrelated to avoidance shock intensity.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. BOREN J. J., SIDMAN M., HERRNSTEIN R. J. Avoidance, escape, and extinction as functions of shock intensity. J Comp Physiol Psychol. 1959 Aug;52:420–426. doi: 10.1037/h0042727. [DOI] [PubMed] [Google Scholar]
  2. BRUSH F. R. The effects of shock intensity on the acquisition and extinction of an avoidance response in dogs. J Comp Physiol Psychol. 1957 Dec;50(6):547–552. doi: 10.1037/h0047341. [DOI] [PubMed] [Google Scholar]
  3. Bernheim J. W., Williams D. R. Time-dependent contrast effects in a multiple schedule of food reinforcement. J Exp Anal Behav. 1967 May;10(3):243–249. doi: 10.1901/jeab.1967.10-243. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. CAMPBELL B. A., KRAELING D. Response strength as a function of drive level and amount of drive reduction. J Exp Psychol. 1953 Feb;45(2):97–101. doi: 10.1037/h0060223. [DOI] [PubMed] [Google Scholar]
  5. CATANIA A. C. Behavioral contrast in a multiple and concurrent schedule of reinforcement. J Exp Anal Behav. 1961 Oct;4:335–342. doi: 10.1901/jeab.1961.4-335. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. HOFFMAN H. S., FLESHLER M., CHORNY H. Discriminated bar-press avoidance. J Exp Anal Behav. 1961 Oct;4:309–316. doi: 10.1901/jeab.1961.4-309. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. KIMBLE G. A. Shock intensity and avoidance learning. J Comp Physiol Psychol. 1955 Aug;48(4):281–284. doi: 10.1037/h0047726. [DOI] [PubMed] [Google Scholar]
  8. Levine S. UCS intensity and avoidance learning. J Exp Psychol. 1966 Jan;71(1):163–164. doi: 10.1037/h0022690. [DOI] [PubMed] [Google Scholar]
  9. MOYER K. E., KORN J. H. EFFECT OF UCS INTENSITY ON THE ACQUISITION AND EXTINCTION OF AN AVOIDANCE RESPONSE. J Exp Psychol. 1964 Apr;67:352–359. doi: 10.1037/h0039933. [DOI] [PubMed] [Google Scholar]
  10. Nevin J. A., Shettleworth S. J. An analysis of contrast effects in multiple schedules. J Exp Anal Behav. 1966 Jul;9(4):305–315. doi: 10.1901/jeab.1966.9-305. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Powell R. W., Peck S. Running-wheel activity and avoidance in the mongolian gerbil. J Exp Anal Behav. 1969 Sep;12(5):779–787. doi: 10.1901/jeab.1969.12-779. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. REYNOLDS G. S. Behavioral contrast. J Exp Anal Behav. 1961 Jan;4:57–71. doi: 10.1901/jeab.1961.4-57. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Reynolds G. S., Limpo A. J. On some causes of behavioral contrast. J Exp Anal Behav. 1968 Sep;11(5):543–547. doi: 10.1901/jeab.1968.11-543. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. SIDMAN M. Two temporal parameters of the maintenance of avoidance behavior by the white rat. J Comp Physiol Psychol. 1953 Aug;46(4):253–261. doi: 10.1037/h0060730. [DOI] [PubMed] [Google Scholar]
  15. Terrace H. S. Discrimination learning, the peak shift, and behavioral contrast. J Exp Anal Behav. 1968 Nov;11(6):727–741. doi: 10.1901/jeab.1968.11-727. [DOI] [PMC free article] [PubMed] [Google Scholar]
  16. ULRICH R. E., HOLZ W. C., AZRIN N. H. STIMULUS CONTROL OF AVOIDANCE BEHAVIOR. J Exp Anal Behav. 1964 Mar;7:129–133. doi: 10.1901/jeab.1964.7-129. [DOI] [PMC free article] [PubMed] [Google Scholar]
  17. WERTHEIM G. A. BEHAVIORAL CONTRAST DURING MULTIPLE AVOIDANCE SCHEDULES. J Exp Anal Behav. 1965 Sep;8:269–278. doi: 10.1901/jeab.1965.8-269. [DOI] [PMC free article] [PubMed] [Google Scholar]
  18. Weisman R. G. Some determinants of inhibitory stimulus control. J Exp Anal Behav. 1969 May;12(3):443–450. doi: 10.1901/jeab.1969.12-443. [DOI] [PMC free article] [PubMed] [Google Scholar]

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