| Autor: |
Gabriel P. Frommer, Irmingard I. Lenzer |
| Rok vydání: |
1968 |
| Předmět: |
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| Zdroj: |
Physiology & Behavior. 3:345-349 |
| ISSN: |
0031-9384 |
| DOI: |
10.1016/0031-9384(68)90112-1 |
| Popis: |
Eight albino rats were trained on a CRF schedule to press a lever for intracranial stimulation of the caudal lateral hypothalamus. Four learned a successive discrimination in which the S D (a white noise and a light together) lasted for 1 min, and four learned a successive discrimination in which the S D lasted for a fixed number of reinforced responses that was reduced from 40 to 1 over the course of training. The interval between S D presentations was varied, from 7.5 sec to 30 min. Preceding S Δ duration had no effect on response measures (latency of the first response and rate) taken during each S D presentation. The latency of the first response to the S D remained quite small well into extinction for a majority of the animals. The significance of these results for drive induction theories of intracranial self-stimulation is considered. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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