[HTML][HTML] Where is the error? Hierarchical predictive coding through dendritic error computation
Top-down feedback in cortex is critical for guiding sensory processing, which has
prominently been formalized in the theory of hierarchical predictive coding (hPC). However …
prominently been formalized in the theory of hierarchical predictive coding (hPC). However …
Deep brain stimulation of the thalamus restores signatures of consciousness in a nonhuman primate model
Loss of consciousness is associated with the disruption of long-range thalamocortical and
corticocortical brain communication. We tested the hypothesis that deep brain stimulation …
corticocortical brain communication. We tested the hypothesis that deep brain stimulation …
Untangling the cortico-thalamo-cortical loop: cellular pieces of a knotty circuit puzzle
GMG Shepherd, N Yamawaki - Nature Reviews Neuroscience, 2021 - nature.com
Functions of the neocortex depend on its bidirectional communication with the thalamus, via
cortico-thalamo-cortical (CTC) loops. Recent work dissecting the synaptic connectivity in …
cortico-thalamo-cortical (CTC) loops. Recent work dissecting the synaptic connectivity in …
[HTML][HTML] The ascending arousal system shapes neural dynamics to mediate awareness of cognitive states
Abstract Models of cognitive function typically focus on the cerebral cortex and hence
overlook functional links to subcortical structures. This view does not consider the role of the …
overlook functional links to subcortical structures. This view does not consider the role of the …
Consciousness and complexity: a consilience of evidence
Over the last years, a surge of empirical studies converged on complexity-related measures
as reliable markers of consciousness across many different conditions, such as sleep …
as reliable markers of consciousness across many different conditions, such as sleep …
[HTML][HTML] Functional geometry of the cortex encodes dimensions of consciousness
Consciousness is a multidimensional phenomenon, but key dimensions such as awareness
and wakefulness have been described conceptually rather than neurobiologically. We …
and wakefulness have been described conceptually rather than neurobiologically. We …
[HTML][HTML] Generating meaning: active inference and the scope and limits of passive AI
Prominent accounts of sentient behavior depict brains as generative models of organismic
interaction with the world, evincing intriguing similarities with current advances in generative …
interaction with the world, evincing intriguing similarities with current advances in generative …
Perceptual awareness negativity: a physiological correlate of sensory consciousness
C Dembski, C Koch, M Pitts - Trends in Cognitive Sciences, 2021 - cell.com
Much research on the neural correlates of consciousness (NCC) has focused on two evoked
potentials, the P3b and the visual or auditory awareness negativity (VAN, AAN). Surveying a …
potentials, the P3b and the visual or auditory awareness negativity (VAN, AAN). Surveying a …
The feasibility of artificial consciousness through the lens of neuroscience
Interactions with large language models (LLMs) have led to the suggestion that these
models may soon be conscious. From the perspective of neuroscience, this position is …
models may soon be conscious. From the perspective of neuroscience, this position is …