The role of expecting feedback during decision-making under risk

Area of Science:

• Neuroscience
• Decision Science
• Behavioral Economics

Background:

• Human decision-making is complex, influenced by potential outcomes and the anticipation of feedback.
• Existing theories offer conflicting predictions on whether expecting feedback increases or decreases gambling behavior.

Purpose of the Study:

• To investigate how the expectation of feedback influences gambling propensity.
• To explore the neural mechanisms underlying feedback anticipation in decision-making.

Main Methods:

• Functional neuroimaging (fMRI) was used to record brain activity.
• Participants completed a novel decision-making task involving choices between a sure option and a gamble.
• Feedback expectation was manipulated across trials.

Main Results:

• Expecting feedback significantly increased participants' propensity to gamble.
• Brain activity in the ventral striatum, associated with reward signaling, also reflected the increased value of gambling when feedback was expected.
• This suggests the ventral striatum may process 'epistemic value'—the value of information itself.

Conclusions:

• Gambling becomes more attractive when individuals anticipate receiving feedback.
• Ventral striatum activity may signal the value of information, contributing to curiosity-driven behavior.
• The findings support curiosity-based theories of decision-making and highlight the role of the ventral striatum in processing information value.