We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
A behavior systems view of the organization of multiple responses during a partially or continuously reinforced interfood clock.
- Authors
Silva, Kathleen M.
- Abstract
We examined how a 50% Pavlovian partial reinforcement (PRF) schedule, versus a 100% continuous reinforcement (CRF) schedule, altered the asymptotic amount and distribution of focal and general search behavior in rats during 48-sec trials with and without a four-segment interfood clock (S1-S2-S3-S4-US). Under CRF, but not PRF, average asymptotic focal search (nosing in the feeder) increased across the last two clock segments (S3 and S4), and more for the clock group than the no-clock group. Locomotor general search peaked in the second clock segment (S2) for the CRF-clock and CRF-no-clock groups and in S3 for the PRF-clock groups. Furthermore, the ratio of general search to maximum focal search was higher for the PR F-clock group than for the CRF-clock group. This pattern of results supports the view that predictable reward presentations temporally organize search states and related responses between food presentations. The relative expression of these responses varies with the predictability and proximity of reward and is more sharply defined in the presence of a clock.
- Subjects
RATS; ANIMAL psychology; ANIMAL behavior; ANIMAL feeding behavior; PSYCHOLOGY
- Publication
Learning & Behavior, 2005, Vol 33, Issue 1, p99
- ISSN
1543-4494
- Publication type
Article
- DOI
10.3758/BF03196054