Functional architecture of executive control and associated event-related potentials in macaques

Amirsaman Sajad, Steven P. Errington and Jeffrey D. Schall ()
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Amirsaman Sajad: Vanderbilt University
Steven P. Errington: Vanderbilt University
Jeffrey D. Schall: Vanderbilt University

Nature Communications, 2022, vol. 13, issue 1, 1-19

Abstract: Abstract The medial frontal cortex (MFC) enables executive control by monitoring relevant information and using it to adapt behavior. In macaques performing a saccade countermanding (stop-signal) task, we simultaneously recorded electrical potentials over MFC and neural spiking across all layers of the supplementary eye field (SEF). We report the laminar organization of neurons enabling executive control by monitoring the conflict between incompatible responses, the timing of events, and sustaining goal maintenance. These neurons were a mix of narrow-spiking and broad-spiking found in all layers, but those predicting the duration of control and sustaining the task goal until the release of operant control were more commonly narrow-spiking neurons confined to layers 2 and 3 (L2/3). We complement these results with evidence for a monkey homolog of the N2/P3 event-related potential (ERP) complex associated with response inhibition. N2 polarization varied with error-likelihood and P3 polarization varied with the duration of expected control. The amplitude of the N2 and P3 were predicted by the spike rate of different classes of neurons located in L2/3 but not L5/6. These findings reveal features of the cortical microcircuitry supporting executive control and producing associated ERPs.

Date: 2022
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DOI: 10.1038/s41467-022-33942-1

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