Performance of Zucker rats in two consummatory contrast paradigms
| Autor: | Charles F. Flaherty, Kathleen L. Krauss, Wendy L. Hill |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
medicine.medical_specialty
Food intake Sucrose Physiology Chemistry General Neuroscience media_common.quotation_subject nutritional and metabolic diseases chemistry.chemical_compound Negative contrast Endocrinology Feeding behavior Internal medicine medicine Contrast (vision) Zucker Rats Licking media_common |
| Zdroj: | Psychobiology. 22:167-172 |
| ISSN: | 0889-6313 |
| DOI: | 10.3758/bf03327095 |
| Popis: | Zucker obese rats showed larger successive negative contrast (degree of reduction in licking when shifted from 32% to 4% sucrose) and larger anticipatory contrast (depressed intake of 4% sucrose when 4% sucrose preceded 32% sucrose in once-per-day pairings) than Zucker lean rats. However, the difference between the lines was small and the performance of the obese rats was similar to that of commercially available Sprague-Dawley rats. The lean and obese rats did not differ in their intake of 32% or 4% sucrose in noncontrast conditions, but they did differ in open-field activity—the obese rats were considerably less active than the lean rats. These data indicate that Zucker obese rats show normal incentive relativity functions in the consumption of sucrose. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink