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Frequency-dependent representation of reinforcement-related information in the human medial and lateral prefrontal cortex

View ORCID ProfileElliot H. Smith, View ORCID ProfileGarrett P. Banks, View ORCID ProfileCharles B. Mikell, View ORCID ProfileSydney S. Cash, View ORCID ProfileShaun R. Patel, View ORCID ProfileEmad A. Eskandar, View ORCID ProfileSameer A. Sheth
doi: https://doi.org/10.1101/029058
Elliot H. Smith
1Department of Neurological Surgery, Columbia University Medical Center, New York, NY, 10032
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Garrett P. Banks
1Department of Neurological Surgery, Columbia University Medical Center, New York, NY, 10032
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Charles B. Mikell
1Department of Neurological Surgery, Columbia University Medical Center, New York, NY, 10032
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Sydney S. Cash
2Department of Neurology, Massachusetts General Hospital, Boston, MA, 02114
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Shaun R. Patel
3Department of Neurosurgery, Massachusetts General Hospital, Boston, MA, 02114
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Emad A. Eskandar
3Department of Neurosurgery, Massachusetts General Hospital, Boston, MA, 02114
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Sameer A. Sheth
1Department of Neurological Surgery, Columbia University Medical Center, New York, NY, 10032
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Abstract

The feedback-related negativity (FRN) is a commonly observed potential in scalp electroencephalography (EEG) studies related to the valence of feedback about a subject’s performance. This potential classically manifests as a negative deflection in medial frontocentral EEG contacts following negative feedback. Recent work has shown prominence of theta power in the spectral composition of the FRN, placing it within the larger class of “frontal midline theta” cognitive control signals. Although the dorsal anterior cingulate cortex (dACC) is thought to be the cortical generator of the FRN, conclusive data regarding its origin and propagation are lacking. Here we examine intracranial electrophysiology from the human medial and lateral prefrontal cortex (PFC) in order to better understand the anatomical localization and communication patterns of the FRN. We show that the FRN is evident in both low- and high-frequency local field potentials (LFPs) recorded on electrocorticography. The FRN is larger in medial compared to lateral PFC, and coupling between theta band phase and high frequency LFP power is also greater in medial PFC. Using Granger causality and conditional mutual information analyses, we provide evidence that feedback-related information propagates from medial to lateral PFC, and that this information transfer oscillates with theta-range periodicity. These results provide evidence for the dACC as the cortical source of the FRN, provide insight into the local computation of frontal midline theta, and have implications for reinforcement learning models of cognitive control.

Significance Statement: Using intracranial electrophysiology in humans, this work addresses questions about a frequently studied feedback-related electroencephalographic signal, illuminating anatomical and functional properties of the representation of feedback-related reinforcement during decision-making across the medial to lateral extent of the human prefrontal cortex.

Footnotes

  • Conflict of interest: The authors declare no competing financial interests

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The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. All rights reserved. No reuse allowed without permission.
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Posted November 21, 2015.
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Frequency-dependent representation of reinforcement-related information in the human medial and lateral prefrontal cortex
Elliot H. Smith, Garrett P. Banks, Charles B. Mikell, Sydney S. Cash, Shaun R. Patel, Emad A. Eskandar, Sameer A. Sheth
bioRxiv 029058; doi: https://doi.org/10.1101/029058
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Frequency-dependent representation of reinforcement-related information in the human medial and lateral prefrontal cortex
Elliot H. Smith, Garrett P. Banks, Charles B. Mikell, Sydney S. Cash, Shaun R. Patel, Emad A. Eskandar, Sameer A. Sheth
bioRxiv 029058; doi: https://doi.org/10.1101/029058

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