Abstract
Five pigeons pecked for food reinforcers on a concurrent variable-interval one-minute, variable-interval four-minute schedule. Each bird's body weight was varied from 80% of its free-feeding weight to 95% and then by 5% steps to 110% or until weight gains ceased. The coefficient of variation, but not the standard deviation, of the daily rate of responding on each of the component schedules increased with increases in body weight.
Full text
PDF
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- CONRAD D. G., SIDMAN M., HERRNSTEIN R. J. The effects of deprivation upon temporally spaced responding. J Exp Anal Behav. 1958 Jan;1:59–65. doi: 10.1901/jeab.1958.1-59. [DOI] [PMC free article] [PubMed] [Google Scholar]
- HERRICK R. M., BROMBERGER R. A. LEVER DISPLACEMENT UNDER A VARIABLE RATIO SCHEDULE AND SUBSEQUENT EXTINCTION. J Comp Physiol Psychol. 1965 Jun;59:392–398. doi: 10.1037/h0022063. [DOI] [PubMed] [Google Scholar]
- HERRICK R. M. LEVER DISPLACEMENT UNDER A FIXED-RATIO SCHEDULE AND SUBSEQUENT EXTINCTION. J Comp Physiol Psychol. 1965 Apr;59:263–270. doi: 10.1037/h0021849. [DOI] [PubMed] [Google Scholar]