Medial Frontal Cortex Activity Predicts Information Sampling in Economic Choice.

Area of Science:

• Neuroscience
• Cognitive Science
• Decision Science

Background:

• Economic choice involves deciding what to choose and how much information to gather.
• Previous models focus on evidence accumulation but less on explicit control over information sampling.

Purpose of the Study:

• Investigate the neural basis of information sampling in economic decision-making.
• Examine the role of medial frontal cortex (MFC) in controlling information gathering.

Main Methods:

• Functional magnetic resonance imaging (fMRI) was used in a multistep economic choice task.
• Participants actively controlled information sampling.
• General linear model analysis was applied to fMRI data.

Main Results:

• Medial frontal cortex (MFC) activity predicted further information sampling.
• MFC activity related to choice difficulty was explained by information sampling.
• Prefrontal cortex regions encoded sampled information features.

Conclusions:

• MFC plays a key role in controlling the extent of information gathering before economic choices.
• MFC activity may guide adaptive sequential sampling for optimal decision-making.