Cited by 813Traumatic Brain Injury ResearchPhilosophy and Theoretical ScienceFunctional Brain Connectivity Studies

The neural correlate of (un)awareness: lessons from the vegetative state

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Laureys, Steven·2005·Trends in Cognitive Sciences

Abstract

Consciousness has two main components: wakefulness and awareness. The vegetative state is characterized by wakefulness without awareness. Recent functional neuroimaging results have shown that some parts of the cortex are still functioning in 'vegetative' patients. External stimulation, such as a painful stimulus, still activates 'primary' sensory cortices in these patients but these areas are functionally disconnected from 'higher order' associative areas needed for awareness. Such studies are disentangling the neural correlates of the vegetative state from the minimally conscious state, and have major clinical consequences in addition to empirical importance for the understanding of consciousness.

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Crossref · 10.1016/j.tics.2005.10.010

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  • In studies of disorders of consciousness in humans, the idea of 'levels of consciousness' has been influential.

    “In studies of disorders of consciousness in humans, the idea of ‘levels of consciousness’ has been influential [8].”

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Authors
Laureys, S.
Affiliations
University of Liège (BE)
Corresponding author
Laureys, Steven
Venue
Trends in Cognitive Sciences
Publisher
Elsevier BV
Published
2005-12
Volume
9
Issue
12
Pages
556-559
ISSN
1364-6613 (ISSN-L)
OpenAlex
W2087302183
Cited by
813
References
21
Citations by year
2026: 41 · 2025: 35 · 2024: 68 · 2023: 39 · 2022: 35 · 2021: 58 · 2020: 65 · 2019: 49 · 2018: 33 · 2017: 33 · 2016: 28 · 2015: 41 · 2014: 31 · 2013: 52 · 2012: 42
FWCI
1.96
Type
journal article
Language
en
Open access
Locations
  • Trends in Cognitive Sciences (publishedVersion)
  • PubMed (publishedVersion)
  • Open Repository and Bibliography (University of Liège) (submittedVersion, other-oa)
Topics
  • Health Sciences › Medicine › Epidemiology › Traumatic Brain Injury Research
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Philosophy and Theoretical Science
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
Keywords
vegetative state, awareness, consciousness, neural correlates of consciousness, wakefulness, minimally conscious state, sensory cortex, association cortex, functional disconnection, pain perception
MeSH terms
Agnosia, Awareness, Brain, Brain Mapping, Cerebral Cortex, Consciousness, Energy Metabolism, Epilepsy, Absence, Higher Nervous Activity, Humans, Image Processing, Computer-Assisted, Nerve Net, Pain, Somnambulism, Wakefulness, Tomography, Emission-Computed, Single-Photon, Epilepsy, Complex Partial, Persistent Vegetative State, Imaging, Three-Dimensional, Positron-Emission Tomography

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