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    The orbitofrontal cortex (OFC) dynamically compares attributes of choices, not just integrated values. Neurons in the OFC track attended attributes, showing attribute-level comparisons crucial for economic decisions.

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    Area of Science:

    • Neuroscience
    • Decision Science
    • Cognitive Economics

    Background:

    • Economic decisions involve evaluating multiple attributes.
    • The orbitofrontal cortex (OFC) is implicated in value computation and choice.
    • Previous research suggested OFC neurons encode integrated values, but direct evidence for value comparison was limited.

    Purpose of the Study:

    • To investigate how orbitofrontal cortex (OFC) neurons integrate and compare multi-attribute options during economic decisions.
    • To determine if OFC neurons compute integrated values or perform attribute-level comparisons.

    Main Methods:

    • A multi-attribute choice task was designed for monkeys.
    • Neural activity in the OFC was recorded.
    • Eye tracking was used to measure covert attention to specific attributes.

    Main Results:

    • OFC neurons encoded the value of attended attributes independently of other attributes within the same option.
    • Neural encoding was negatively modulated by the value of the corresponding attribute in the alternative option, indicating attribute comparison.
    • Attention dynamically shifted the focus of attribute comparison.

    Conclusions:

    • The OFC computes comparisons among attributes rather than solely integrated values.
    • These attribute comparisons are dynamic and shift with the focus of attention.
    • This finding provides new insights into the neural mechanisms underlying complex economic decision-making.