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| Content Provider | PubMed Central |
|---|---|
| Author | Ward, Ryan D. Odum, Amy L. |
| Copyright Year | 2005 |
| Abstract | Discrepant effects of drugs on behavior maintained by temporal-discrimination procedures make conclusive statements about the neuropharmacological bases of timing difficult. The current experiment examined the possible contribution of a general, drug-induced disruption of stimulus control. Four pigeons responded on a three-component multiple schedule that included a fixed-interval 2-min, temporal discrimination, and color-matching component. Under control conditions, response rates and choice responses during the first two components showed evidence of control by time, and accuracy for color matching was high in the third component. Morphine administration flattened the distribution of fixed-interval responding and produced a general disruption of accuracy in the temporal-discrimination component, whereas accuracy in the color-matching component was relatively unaffected. Analysis of the psychophysical functions from the temporal-discrimination component indicated that morphine decreased accuracy of temporal discrimination by decreasing overall stimulus control, rather than by selectively affecting timing. These results suggest the importance of determining the neurophysiological bases of stimulus control as it relates to temporal discrimination. |
| Related Links | http://dx.doi.org/10.1901/jeab.2005.94-04 |
| Starting Page | 401 |
| File Format | |
| ISSN | 00225002 |
| e-ISSN | 00225002 |
| Journal | Journal of the Experimental Analysis of Behavior |
| Issue Number | 3 |
| Volume Number | 84 |
| Language | English |
| Publisher | Society for the Experimental Analysis of Behavior, Inc. |
| Publisher Date | 2005-11-01 |
| Access Restriction | Open |
| Rights Holder | Society for the Experimental Analysis of Behavior, Inc. |
| Subject Keyword | Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Experimental and Cognitive Psychology Behavioral Neuroscience |
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