Effects of glucose–saccharin preloads on schedule- and deprivation-induced drinking in rats
| Autor: | Joseph H. Porter, Gregory F. Heath, James J. McDonough |
|---|---|
| Rok vydání: | 1985 |
| Předmět: |
Male
Reinforcement Schedule Physiology Drinking Behavior Thirst chemistry.chemical_compound Saccharin Animal science Osmotic Pressure medicine Animals Homeostasis Food motivation Water Deprivation digestive oral and skin physiology Caloric theory Rats Inbred Strains medicine.disease Privation Diet Rats Preload Glucose chemistry Lever pressing medicine.symptom Psychology Polydipsia psychological phenomena and processes |
| Zdroj: | Behavioral and Neural Biology. 44:492-498 |
| ISSN: | 0163-1047 |
| DOI: | 10.1016/s0163-1047(85)90952-5 |
| Popis: | The present series of experiments found that high volumes of a glucose-saccharin solution consumed by rats prior to testing (i.e., a preload) produced a small, but significant suppression of established schedule-induced drinking (Experiment 2). This reduction in polydipsic drinking did not appear to be due to the caloric value of the preload (Experiment 1) or to any changes in food motivation, since Experiment 2 showed that there were no changes in lever pressing on a fixed-interval 1-min food schedule. In Experiment 3, the glucose-saccharin preloads produced a complete suppression of water deprivation-induced drinking. While schedule-induced drinking does appear to be a nonhomeostatic form of drinking, under certain testing conditions, it is sensitive to manipulations which affect homeostatic thirst mechanisms. |
| Databáze: | OpenAIRE |
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