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Measuring the Subjective Value of Risky and Ambiguous Options using Experimental Economics and Functional MRI Methods

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Published on: September 19, 2012

The Anterior Insula Processes a Time-Resolved Subjective Risk Prediction Error.

Jae-Chang Kim¹, Lydia Hellrung², Stephan Nebe²

¹Zurich Center for Neuroeconomics, Department of Economics, University of Zurich, Zurich 8006, Switzerland jaechang.kim@econ.uzh.ch phil.tobler@econ.uzh.ch.

The Journal of Neuroscience : the Official Journal of the Society for Neuroscience

|April 23, 2025

Summary

This summary is machine-generated.

The anterior insula processes subjective risk prediction errors, distinguishing between better- and worse-than-predicted outcomes. These signals are time-resolved and domain-specific, particularly in the aversive domain.

Keywords:

attention learning uncertainty

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Area of Science:

Neuroscience
Cognitive Neuroscience
Decision Neuroscience

Background:

The insula's role in processing prediction errors for risky outcomes is debated.
It remains unclear if the insula processes risk prediction errors in a domain-general or domain-specific manner.
Previous research suggested the insula might preferentially process aversive stimuli.

Purpose of the Study:

To investigate the nature of risk prediction error signals in the insula.
To differentiate between objective and subjective risk prediction errors.
To determine if the insula's processing is domain-general or domain-specific.

Main Methods:

A Pavlovian task was used with 41 participants.
Participants rated cues and outcomes to quantify subjective risk prediction errors.
Objective and subjective risk prediction errors were analyzed in relation to insula activity.

Main Results:

Subjective risk prediction errors were preferentially coded in the anterior insula and frontal cortex.
Objective risk prediction errors were preferentially coded in the mid-insula.
Anterior insula encoded subjective risk prediction errors at cue and outcome times, with stronger updates in the aversive domain.

Conclusions:

The anterior insula processes subjective, time-resolved risk prediction errors.
Processing is partly domain-general for outcomes and domain-preferential for cues.
Findings reconcile differing views on insula function in risk processing.