When the simplest voluntary decisions appear patently suboptimal.

Area of Science:

• Cognitive neuroscience
• Decision-making research

Background:

• Empirical evidence shows performance variability in numerous experiments.
• Theoretical models often predict ideal performance based on reward maximization.

Purpose of the Study:

• To examine an extreme case of performance deviation in a simple behavior.
• To investigate how contextual manipulation influences responses.
• To demonstrate informative and mechanistically examinable deviations.

Main Methods:

• Cataloging experiments with performance deviations.
• Analyzing reactive saccades to single targets.
• Implementing a simple contextual manipulation.

Main Results:

• Observed responses dramatically differed from reward maximization predictions.
• The altered responses were highly informative.
• The behavior remained amenable to mechanistic examination.

Conclusions:

• Contextual factors significantly impact even elementary behaviors.
• Deviations from ideal performance can provide valuable mechanistic insights.
• Reward maximization alone may not fully explain behavior.