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The neural correlate of (un)awareness: lessons from the vegetative state
Open accessAbstract
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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“In studies of disorders of consciousness in humans, the idea of ‘levels of consciousness’ has been influential [8].”
From Dimensions of Animal Consciousness (2020) · cites this paper as [8]
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Self-citationfMRI reveals large-scale network activation in minimally conscious patients
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Self-citationImpaired Effective Cortical Connectivity in Vegetative State: Preliminary Investigation Using PET
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Self-citationResidual cerebral activity and behavioural fragments can remain in the persistently vegetative brain
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Cerebral metabolism during vegetative state and after recovery to consciousness
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Self-citationCerebral processing in the minimally conscious state
Laureys, S., Perrin, F., Faymonville, M. E., Schnakers, C., Boly, M., Bartsch, V., Majerus, S., Moonen, G., & Maquet, P. (2004) · Neurology · doi:10.1212/01.wnl.0000137421.30792.9b · Cited by 183
Self-citationCerebral processing in the minimally conscious state
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Emotion processing in the minimally conscious state
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Cited by
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Experimental and theoretical approaches to conscious processing
Dehaene, S., & Changeux, J.-P. (2011) · Neuron · doi:10.1016/j.neuron.2011.03.018 · Cited by 2,573
Conscious, preconscious, and subliminal processing: a testable taxonomy
Dehaene, S., Changeux, J.-P., Naccache, L., Sackur, J., & Sergent, C. (2006) · Trends in Cognitive Sciences · doi:10.1016/j.tics.2006.03.007 · Cited by 2,067
Neural correlates of consciousness: progress and problems
Koch, C., Massimini, M., Boly, M., & Tononi, G. (2016) · Nature Reviews Neuroscience · doi:10.1038/nrn.2016.22 · Cited by 1,600
Willful Modulation of Brain Activity in Disorders of Consciousness
Monti, M. M., Vanhaudenhuyse, A., Coleman, M. R., Boly, M., Pickard, J. D., Tshibanda, L., Owen, A. M., & Laureys, S. (2010) · New England Journal of Medicine · doi:10.1056/nejmoa0905370 · Cited by 1,469
Self-citationA theoretically based index of consciousness independent of sensory processing and behavior
Casali, A. G., Gosseries, O., Rosanova, M., Boly, M., Sarasso, S., Casali, K. R., Casarotto, S., Bruno, M.-A., Laureys, S., Tononi, G., et al. (2013) · Science Translational Medicine · doi:10.1126/scitranslmed.3006294 · Cited by 1,246
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Metadata
- Authors
- Laureys, S.
- Affiliations
- University of Liège (BE)
- Corresponding author
- Laureys, Steven
- ORCID
- 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
- bronze
- doi.org
- Locations
- Trends in Cognitive Sciences (publishedVersion)
- PubMed (publishedVersion)
- Open Repository and Bibliography (University of Liège) (submittedVersion, other-oa)
- Topics
- Health Sciences › Medicine › Clinical Neurology › Traumatic Brain Injury Research
- Social Sciences › Arts and Humanities › Philosophy › 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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