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Orbital frontal cortex updates state-induced value change for decision-making.

Emily T Baltz1, Ege A Yalcinbas1,2, Rafael Renteria1

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|June 14, 2018
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The orbital frontal cortex (OFC) is crucial for learning outcome changes that guide behavior. Inhibiting the OFC impaired mice's ability to update their decisions based on new experiences.

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Area of Science:

  • Neuroscience
  • Cognitive Neuroscience
  • Behavioral Neuroscience

Background:

  • The orbital frontal cortex (OFC) is hypothesized to be involved in using inferred consequences to guide behavior.
  • Its specific role in goal-directed or model-based behavior, particularly in learning about outcome changes independent of decision-making, remains unclear.

Purpose of the Study:

  • To investigate the role of the OFC in experience-based outcome updating, separate from action control.
  • To understand how the OFC contributes to learning from changes in outcome value.

Main Methods:

  • Adapted an incentive learning task for mice to dissociate outcome updating from action control.
  • Utilized chemogenetics to attenuate OFC function and optogenetics to inhibit OFC excitatory neurons during outcome change experiences.

Main Results:

  • OFC attenuation did not affect the perception of outcome value changes.
  • However, OFC attenuation prevented experience-based updating of these changes.
  • Optogenetic inhibition during outcome change experience disrupted updating and subsequent behavioral inference.

Conclusions:

  • The OFC plays a critical role in learning processes that update outcome value based on experience.
  • This learning function of the OFC is essential for guiding decision-making behavior.
  • Findings support a specific role for OFC in adaptive behavioral control through outcome learning.