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Updated: Feb 8, 2026
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The Three-Chamber Choice Behavioral Task using Zebrafish as a Model System
Published on: April 14, 2021
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Midsession reversal task with pigeons: Parallel processing of alternatives explains choices
Aaron P Smith1, Thomas R Zentall1, Alex Kacelnik2
1Department of Psychology.
Summary
The sequential choice model (SCM) explains choice preferences by response latencies, not a "tug of war" between options. This model accurately predicts pigeon choices without increasing decision time.
Area of Science:
- Behavioral Neuroscience
- Animal Cognition
- Decision Making
Background:
- Traditional choice models propose a
- tug of war
- between options, suggesting deliberation increases action delay.
- The sequential choice model (SCM) posits choices arise from parallel action mechanisms without deliberation.
Purpose of the Study:
- To contrast the
- tug of war
- (ToW) model with the sequential choice model (SCM).
- To investigate if choice preferences can be predicted by response latencies in single-option encounters.
Main Methods:
- A midsession reversal task was employed with pigeons.
- Single-option (sequential) and two-option (choice) trials were intermingled.
- Response latencies to rewarded and unrewarded alternatives were recorded.
Main Results:
- Choice preferences shifted predictably based on reinforcement changes.
- These preferences were accurately predicted by response latencies in single-option trials.
- No evidence of an evaluation time cost for choice was found.
Conclusions:
- The SCM successfully predicts choice preferences from single-option response latencies.
- Findings support the SCM over ToW models, indicating choices do not inherently incur a delay cost.
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