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Choice in a variable environment: visit patterns in the dynamics of choice
William M Baum1, Michael Davison
1Psychology Department, The University of Auckland, Private Bag 92019, Auckland, New Zealand. wbaum@sbcglobal.net
Journal of the Experimental Analysis of Behavior
|April 29, 2004
Summary
This study shows that analyzing behavior at different time scales, from moment-to-moment (molecular) to extended periods (molar), reveals complex choice patterns in pigeons. A molar view of behavior analysis offers flexibility in understanding these patterns.
Area of Science:
- Behavioral science
- Animal behavior
Background:
- Molar and molecular perspectives offer distinct approaches to behavioral data analysis.
- Molecular analysis focuses on immediate responses, while molar analysis examines longer behavioral sequences.
Purpose of the Study:
- To investigate the utility of analyzing behavioral order at various timescales.
- To explore the flexibility of a molar view in understanding complex choice patterns.
Main Methods:
- Pigeons were presented with seven different reinforcer ratios within sessions under variable-interval schedules.
- Choice behavior and visits to response alternatives were analyzed at different levels of extendedness.
Main Results:
- Choice rapidly shifted toward the alternative that just delivered a reinforcer.
- Consecutive reinforcers for one alternative led to sustained preference, with shifts occurring more slowly.
- A discontinuation of reinforcers by one alternative caused a significant shift in choice to the other.
Conclusions:
- Behavioral analysis at multiple timescales, both extended and local, is crucial for a comprehensive understanding.
- The findings highlight the adaptability and explanatory power of the molar view of behavior analysis.