Theories of consciousness

AK Seth, T Bayne - Nature Reviews Neuroscience, 2022 - nature.com
Recent years have seen a blossoming of theories about the biological and physical basis of
consciousness. Good theories guide empirical research, allowing us to interpret data …

[HTML][HTML] Where is the error? Hierarchical predictive coding through dendritic error computation

FA Mikulasch, L Rudelt, M Wibral… - Trends in Neurosciences, 2023 - cell.com
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 …

Deep brain stimulation of the thalamus restores signatures of consciousness in a nonhuman primate model

J Tasserie, L Uhrig, JD Sitt, D Manasova, M Dupont… - Science …, 2022 - science.org
Loss of consciousness is associated with the disruption of long-range thalamocortical and
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 …

[HTML][HTML] The ascending arousal system shapes neural dynamics to mediate awareness of cognitive states

BR Munn, EJ Müller, G Wainstein, JM Shine - Nature communications, 2021 - nature.com
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 …

Consciousness and complexity: a consilience of evidence

S Sarasso, AG Casali, S Casarotto… - Neuroscience of …, 2021 - academic.oup.com
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 …

[HTML][HTML] Functional geometry of the cortex encodes dimensions of consciousness

Z Huang, GA Mashour, AG Hudetz - Nature communications, 2023 - nature.com
Consciousness is a multidimensional phenomenon, but key dimensions such as awareness
and wakefulness have been described conceptually rather than neurobiologically. We …

[HTML][HTML] Generating meaning: active inference and the scope and limits of passive AI

G Pezzulo, T Parr, P Cisek, A Clark, K Friston - Trends in Cognitive …, 2024 - cell.com
Prominent accounts of sentient behavior depict brains as generative models of organismic
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 …

The feasibility of artificial consciousness through the lens of neuroscience

J Aru, ME Larkum, JM Shine - Trends in Neurosciences, 2023 - cell.com
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 …