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| Content Provider | PubMed Central |
|---|---|
| Author | Ploog, B. O. |
| Abstract | The effect of primary reinforcement on initial-link responding under concurrent-chains schedules with nondifferential terminal links was assessed in 12 pigeons. The iniitial and terminal links were variable-interval schedules (always the same for both alternatives). The positions (left or right key) of the initial-link stimuli (red or green) were randomized while the correlation between color and food amount remained constant within each condition. The terminal-link stimuli were always presented on the center key. Except in two control groups and conditions, the terminal-link stimuli were the same color (nondifferential, blue or yellow). Over six conditions, the differences in food amont and the durations of the initial- and terminal-link schedules were manipulated. In 57 of 60 cases, birds generated choice proportions above .50 in favor of the initial-link stimlus that was correlated with the larger reinforcer. There was some indication that preference increased with shortened terminal-link durations. Because the terminal-link stimuli were nondifferential, differential responding in the initial links cannot be explained easily by conditioned reinforcement represented by the terminal-link stimuli. Thus, primiary reinforcement has a direct effect on initial-link responding in concurrent-chains schedules. |
| Related Links | http://dx.doi.org/10.1901/jeab.2001.76-75 |
| Ending Page | 94 |
| Page Count | 20 |
| Starting Page | 75 |
| File Format | |
| ISSN | 00225002 |
| Journal | Journal of the Experimental Analysis of Behavior |
| Issue Number | 1 |
| Volume Number | 76 |
| Language | English |
| Publisher Date | 2001-07-01 |
| Access Restriction | Open |
| Subject Keyword | Experimental and Cognitive Psychology Behavioral Neuroscience Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Experimental and Cognitive Psychology Behavioral Neuroscience |
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