Cell Reports
July 25, 2023
Gal Vishne, Edden M Gerber, Robert T. Knight et al.
Instances of sustained stationary sensory input are ubiquitous. However, previous work focused almost exclusively on transient onset responses. This presents a critical challenge for neural theories of consciousness, which should account for the full temporal extent of experience. To address this question, we use intracranial recordings from ten human patients with epilepsy to view diverse...
Proc Natl Acad Sci U S A
February 1, 2022
Daniel Toker, Ioannis Pappas, Janna D. Lendner et al.
148 citations
Mounting evidence suggests that during conscious states, the electrodynamics of the cortex are poised near a critical point or phase transition and that this near-critical behavior supports the vast flow of information through cortical networks during conscious states. Here, we empirically identify a mathematically specific critical point near which waking cortical oscillatory dynamics operate,...
Frontiers in Human Neuroscience
August 18, 2021
Ruxandra I. Tivadar, Robert T. Knight, Athina Tzovara
The human brain has the astonishing capacity of integrating streams of sensory information from the environment and forming predictions about future events in an automatic way. Despite being initially developed for visual processing, the bulk of predictive coding research has subsequently focused on auditory processing, with the famous mismatch negativity signal as possibly the most studied...
bioRxiv
June 11, 2021
Daniel Toker, Ioannis Pappas, Janna D. Lendner et al.
3 citations
preprint
Mounting evidence suggests that during conscious states, the electrodynamics of the cortex are poised near a critical point or phase transition, and that this near-critical behavior supports the vast flow of information through cortical networks during conscious states. Here, for the first time, we empirically identify the specific critical point near which conscious cortical dynamics operate...
Nature Human Behaviour
February 1, 2019
M. Michel, Diane M Beck, Ned Block et al.
Scientific research on consciousness is critical to multiple scientific, clinical, and ethical issues. The growth of the field could also be beneficial to several areas including neurology and mental health research. To achieve this goal, we need to set funding priorities carefully and address problems such as job creation and potential media misrepresentation.
The Journal of neuroscience : the official journal of the Society for Neuroscience
October 4, 2017
Brian Odegaard, Robert T. Knight, Hakwan Lau
Is activity in prefrontal cortex (PFC) critical for conscious perception? Major theories of consciousness make distinct predictions about the role of PFC, providing an opportunity to arbitrate between these views empirically. Here we address three common misconceptions: (1) PFC lesions do not affect subjective perception; (2) PFC activity does not reflect specific perceptual content; and (3)...