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Published on: March 17, 2019
Towards a mathematical model of within-session operant responding.
Estêvão G Bittar1, Kleber Del-Claro, Lucas G Bittar
1Department of Zoology, Universidade Federal de Juiz de Fora, Brazil. estevaobittar@hotmail.com
Summary
This study refines a mathematical model explaining changes in operant response rates during experiments. The new model simplifies understanding within-session motivation dynamics by adjusting arousal levels.
Area of Science:
- Behavioral neuroscience
- Mathematical psychology
Background:
- Operant response rates exhibit predictable changes within experimental sessions across species.
- Killeen's (1995) model proposed arousal and satiation dynamics explain these rate changes.
Purpose of the Study:
- Analyze Killeen's (1995) model for within-session response rate changes.
- Develop and test a novel mathematical model for motivation dynamics.
- Simplify the modeling of free-operant response rates.
Main Methods:
- Critically evaluated Killeen's (1995) mathematical model.
- Constructed a new model based on arousal and satiation principles.
- Tested the new model's efficacy in predicting response rates.
Main Results:
- Identified implementation flaws in Killeen's (1995) model.
- The new model successfully captures within-session motivation dynamics.
- Representing arousal as a 0-1 variable yielded a simplified model.
Conclusions:
- Killeen's (1995) model provides a foundation but requires refinement.
- The proposed model offers a more accurate and simpler representation of operant behavior.
- Arousal dynamics are key to understanding within-session response rate variability.
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