Large-scale dynamics of perceptual decision information across human cortex

Niklas Wilming (), Peter R. Murphy, Florent Meyniel and Tobias H. Donner ()
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Niklas Wilming: University Medical Center Hamburg-Eppendorf
Peter R. Murphy: University Medical Center Hamburg-Eppendorf
Florent Meyniel: University Paris-Saclay, Inserm, CEA, NeuroSpin, Cognitive Neuroimaging Unit
Tobias H. Donner: University Medical Center Hamburg-Eppendorf

Nature Communications, 2020, vol. 11, issue 1, 1-14

Abstract: Abstract Perceptual decisions entail the accumulation of sensory evidence for a particular choice towards an action plan. An influential framework holds that sensory cortical areas encode the instantaneous sensory evidence and downstream, action-related regions accumulate this evidence. The large-scale distribution of this computation across the cerebral cortex has remained largely elusive. Here, we develop a regionally-specific magnetoencephalography decoding approach to exhaustively map the dynamics of stimulus- and choice-specific signals across the human cortical surface during a visual decision. Comparison with the evidence accumulation dynamics inferred from behavior disentangles stimulus-dependent and endogenous components of choice-predictive activity across the visual cortical hierarchy. We find such an endogenous component in early visual cortex (including V1), which is expressed in a low (

Date: 2020
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DOI: 10.1038/s41467-020-18826-6

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