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Related Experiment Video

Updated: Feb 4, 2026

Measuring the Subjective Value of Risky and Ambiguous Options using Experimental Economics and Functional MRI Methods
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Medial orbitofrontal inactivation does not affect economic choice.

Matthew Ph Gardner1, Jessica C Conroy1, Clay V Styer1

  • 1NIDA Intramural Research Program, Baltimore, United States.

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|October 4, 2018
PubMed
Summary
This summary is machine-generated.

The medial orbitofrontal cortex (mOFC) is not essential for making economic choices between goods. This finding suggests that rational decision-making involves multiple, interconnected neural systems, not a single brain region.

Keywords:
decision makingeconomic choiceneuroscienceoptogeneticsorbitofrontal cortexrat

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Area of Science:

  • Neuroscience
  • Decision Science
  • Behavioral Economics

Background:

  • A prominent theory suggests a common neural currency underlies economic decision-making.
  • The orbitofrontal cortex (OFC) has been implicated, with value-related neural activity observed in its lateral (monkeys) and medial (humans) parts.
  • Previous studies inactivated lateral OFC in rats without impacting economic choice.

Purpose of the Study:

  • To investigate the role of the medial orbitofrontal cortex (mOFC) in economic choice behavior.
  • To determine if mOFC is necessary for decisions between different goods.

Main Methods:

  • Inactivated the medial orbitofrontal cortex (mOFC) in rats performing an economic choice task.
  • Verified inactivation efficacy by testing behavior on a progressive ratio task, known to depend on mOFC.
  • Compared choice behavior before and after mOFC inactivation.

Main Results:

  • Medial OFC inactivation did not affect economic choice behavior between different goods.
  • Inactivation disrupted performance on the progressive ratio task, confirming the inactivation's effectiveness.
  • Rats continued to make rational economic choices despite mOFC inactivation.

Conclusions:

  • The medial orbitofrontal cortex (mOFC) is not necessary for economic choice.
  • These findings challenge the necessity of a single neural currency for rational decision-making.
  • Economic choices are likely supported by multiple, distributed neural circuits.