Abstract
After an initial period of nondifferential training, six pigeons were trained on a go/no-go discrimination involving 12 line tilts from vertical clockwise to horizontal. Responses to the first six tilts (positive stimuli) were reinforced on a variable-interval one-minute schedule, whereas responses to the other six tilts (negative stimuli) were extinguished. During the first several discrimination sessions, the highest response rate was typically to one of the positive stimuli that was relatively close to the negative stimuli or at an intermediate distance, rather than to one of the positive stimuli most distant from the negative stimuli. This effect decreased with extended training up to 50 or 80 sessions.
Full text
PDF
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Brown P. L., Jenkins H. M. Auto-shaping of the pigeon's key-peck. J Exp Anal Behav. 1968 Jan;11(1):1–8. doi: 10.1901/jeab.1968.11-1. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Gamzu E., Schwartz B. The maintenance of key pecking by stimulus-contingent and response-independent food presentation. J Exp Anal Behav. 1973 Jan;19(1):65–72. doi: 10.1901/jeab.1973.19-65. [DOI] [PMC free article] [PubMed] [Google Scholar]
- HANSON H. M. Effects of discrimination training on stimulus generalization. J Exp Psychol. 1959 Nov;58:321–334. doi: 10.1037/h0042606. [DOI] [PubMed] [Google Scholar]
- Malone J. C., Staddon J. E. Contrast effects in maintained generalization gradients. J Exp Anal Behav. 1973 Jan;19(1):167–179. doi: 10.1901/jeab.1973.19-167. [DOI] [PMC free article] [PubMed] [Google Scholar]
- REYNOLDS G. S. Contrast, generalization, and the process of discrimination. J Exp Anal Behav. 1961 Oct;4:289–294. doi: 10.1901/jeab.1961.4-289. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Redford M. E., Perkins C. C. The role of autopecking in behavioral contrast. J Exp Anal Behav. 1974 Jan;21(1):145–150. doi: 10.1901/jeab.1974.21-145. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Von Békésy G. Similarities of inhibition in the different sense organs. Am Psychol. 1969 Aug;24(8):707–719. doi: 10.1037/h0027934. [DOI] [PubMed] [Google Scholar]