The Impact of Prior Beliefs about Volatility on Adaptive Behavior

Area of Science:

• Cognitive psychology
• Neuroscience
• Decision-making

Background:

• Humans adapt to dynamic environments by integrating new information with existing beliefs.
• Understanding how prior beliefs about environmental volatility influence adaptive behavior is crucial.

Purpose of the Study:

• To investigate how prior beliefs about environmental volatility affect the updating of cue-target contingencies.
• To examine the impact of violated beliefs on learning and decision-making in dynamic environments.

Main Methods:

• Thirty-two participants performed probabilistic reversal-learning tasks in reactive and predictive versions.
• Participants received true or false information about environmental volatility (stability vs. reversal).
• Behavioral data were analyzed using model-free measures and a Rescorla-Wagner learning model.

Main Results:

• Participants adapted to contingency changes in both tasks.
• In the predictive task, prior beliefs about stability negatively impacted learning rates when the environment reversed.
• False beliefs about environmental stability in stable environments increased decision noise and reduced accuracy.

Conclusions:

• Prior beliefs about environmental volatility significantly shape adaptive updating processes.
• The influence of prior beliefs is modulated by task demands and environmental structure.
• These findings highlight the complex interplay between belief, learning, and decision-making under uncertainty.