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Updated: Jun 29, 2025

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Published on: January 23, 2017
Variability and harshness shape flexible strategy-use in support of the constrained flexibility framework
Sarah Pope-Caldwell1, Dominik Deffner2,3, Luke Maurits4
1Department of Comparative Cultural Psychology, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany. popecaldwell.sarah@gmail.com.
Cognitive flexibility allows adaptation, but humans often resist change. The constrained flexibility framework explains this by showing that harshness suppresses switching to new strategies, even beneficial ones.
Area of Science:
- Cognitive psychology
- Decision-making science
Background:
- Human cognition demonstrates remarkable flexibility across diverse environments.
- However, individuals often persist with familiar strategies, even when suboptimal alternatives exist.
- Understanding the factors influencing cognitive flexibility versus inflexibility is crucial.
Purpose of the Study:
- To provide empirical evidence for the constrained flexibility framework (CFF).
- To investigate how environmental factors like variability, predictability, and harshness shape cognitive flexibility.
- To examine the role of elective switching in response to environmental demands.
Main Methods:
- Two studies involving 299 English-speaking adults completing a decision-making task.
- Manipulation of harshness within the decision-making environment (both within-subjects and between-subjects).
- Analysis of elective switching behavior in relation to environmental parameters.
Main Results:
- Elective switching was significantly suppressed by environmental harshness.
- This suppression effect was observed across both within- and between-subjects harshness manipulations.
- Findings align with the predictions of the constrained flexibility framework.
Conclusions:
- The constrained flexibility framework (CFF) offers a valuable model for understanding cognitive flexibility.
- Environmental harshness plays a key role in inhibiting the adoption of new strategies.
- Further research is needed to explore cognitive flexibility across varied contextual demands.
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