The case against economic values in the orbitofrontal cortex (or anywhere else in the brain)

Area of Science:

• Neuroeconomics
• Cognitive Neuroscience
• Decision Science

Background:

• Traditional neuroeconomics posits brain regions encode subjective value for choice.
• The orbitofrontal cortex is hypothesized to compute and signal economic value.
• Existing evidence links neural activity to subjective value estimates in tasks.

Purpose of the Study:

• To challenge the hypothesis of reified value representation in the brain.
• To propose an alternative model for economic decision-making.
• To critically reevaluate neural evidence for value representation.

Main Methods:

• Literature review of neuroeconomics, behavioral economics, and heuristics.
• Analysis of economic concepts of value and their epistemic constraints.
• Examination of recent neural and behavioral findings on choice learning.

Main Results:

• Economic value, in a common-currency sense, may not be directly represented in the brain for choice.
• Heuristics and value-free process models offer alternative explanations for choice behavior.
• Direct learning of action policies provides a robust account of observed behavior.

Conclusions:

• The concept of a universally represented economic value in the brain is questioned.
• Direct learning of action policies offers a parsimonious explanation for choice.
• Future research should consider policy-learning models alongside traditional value-based approaches.