A structural and functional subdivision in central orbitofrontal cortex

Maya Zhe Wang (), Benjamin Y. Hayden and Sarah R. Heilbronner
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Maya Zhe Wang: University of Minnesota
Benjamin Y. Hayden: University of Minnesota
Sarah R. Heilbronner: University of Minnesota

Nature Communications, 2022, vol. 13, issue 1, 1-12

Abstract: Abstract Economic choice requires many cognitive subprocesses, including stimulus detection, valuation, motor output, and outcome monitoring; many of these subprocesses are associated with the central orbitofrontal cortex (cOFC). Prior work has largely assumed that the cOFC is a single region with a single function. Here, we challenge that unified view with convergent anatomical and physiological results from rhesus macaques. Anatomically, we show that the cOFC can be subdivided according to its much stronger (medial) or weaker (lateral) bidirectional anatomical connectivity with the posterior cingulate cortex (PCC). We call these subregions cOFCm and cOFCl, respectively. These two subregions have notable functional differences. Specifically, cOFCm shows enhanced functional connectivity with PCC, as indicated by both spike-field coherence and mutual information. The cOFCm-PCC circuit, but not the cOFCl-PCC circuit, shows signatures of relaying choice signals from a non-spatial comparison framework to a spatially framed organization and shows a putative bidirectional mutually excitatory pattern.

Date: 2022
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DOI: 10.1038/s41467-022-31273-9

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