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Effect of Light/Dark Cycle on Wheel Running and Responding Reinforced by the Opportunity to Run Depends on Postsession Feeding Time
- Source :
-
Psychological Record . Sum 2008 58(3):391-404. - Publication Year :
- 2008
-
Abstract
- Do rats run and respond at a higher rate to run during the dark phase when they are typically more active? To answer this question, Long Evans rats were exposed to a response-initiated variable interval 30-s schedule of wheel-running reinforcement during light and dark cycles. Wheel-running and local lever-pressing rates increased modestly during the dark phase. A second experiment examined the potential role of food-anticipatory activity in this effect by delaying postexperimental session feeding by 6 hr. No increase in wheel-running and lever-pressing rates was observed during the dark phase. This suggests that the effect of light/dark cycle on running and responding for the opportunity to run depended upon food-anticipatory activity. (Contains 2 figures and 1 table.)
Details
- Language :
- English
- ISSN :
- 0033-2933
- Volume :
- 58
- Issue :
- 3
- Database :
- ERIC
- Journal :
- Psychological Record
- Publication Type :
- Academic Journal
- Accession number :
- EJ806343
- Document Type :
- Journal Articles<br />Reports - Research