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Human stereoEEG recordings reveal network dynamics of decision-making in a rule-switching task.


ABSTRACT: The processing steps that lead up to a decision, i.e., the transformation of sensory evidence into motor output, are not fully understood. Here, we combine stereoEEG recordings from the human cortex, with single-lead and time-resolved decoding, using a wide range of temporal frequencies, to characterize decision processing during a rule-switching task. Our data reveal the contribution of rostral inferior parietal lobule (IPL) regions, in particular PFt, and the parietal opercular regions in decision processing and demonstrate that the network representing the decision is common to both task rules. We reconstruct the sequence in which regions engage in decision processing on single trials, thereby providing a detailed picture of the network dynamics involved in decision-making. The reconstructed timeline suggests that the supramarginal gyrus in IPL links decision regions in prefrontal cortex with premotor regions, where the motor plan for the response is elaborated.

SUBMITTER: Ter Wal M 

PROVIDER: S-EPMC7300004 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature

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Human stereoEEG recordings reveal network dynamics of decision-making in a rule-switching task.

Ter Wal Marije M   Platonov Artem A   Cardellicchio Pasquale P   Pelliccia Veronica V   LoRusso Giorgio G   Sartori Ivana I   Avanzini Pietro P   Orban Guy A GA   Tiesinga Paul H E PHE  

Nature communications 20200617 1


The processing steps that lead up to a decision, i.e., the transformation of sensory evidence into motor output, are not fully understood. Here, we combine stereoEEG recordings from the human cortex, with single-lead and time-resolved decoding, using a wide range of temporal frequencies, to characterize decision processing during a rule-switching task. Our data reveal the contribution of rostral inferior parietal lobule (IPL) regions, in particular PFt, and the parietal opercular regions in deci  ...[more]

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