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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].”
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Cortical processing of noxious somatosensory stimuli in the persistent vegetative state
Laureys, S., Faymonville, M. E., Peigneux, P., Damas, P., Lambermont, B., Del Fiore, G., Degueldre, C., Aerts, J., Luxen, A., Franck, G., et al. (2002) · NeuroImage · doi:10.1006/nimg.2002.1236 · Cited by 432
Self-citationfMRI reveals large-scale network activation in minimally conscious patients
Schiff, N. D., Rodriguez‐Moreno, D. V., Kamal, A., Kim, K. H. S., Giacino, J. T., Plum, F., & Joy Hirsch, C. (2005) · Neurology · doi:10.1212/01.wnl.0000150883.10285.44 · Cited by 430
Restoration of thalamocortical connectivity after recovery from persistent vegetative state
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Self-citationImpaired Effective Cortical Connectivity in Vegetative State: Preliminary Investigation Using PET
Laureys, S., Goldman, S., Phillips, C. L. M., Bogaert, P. V., Aerts, J. J., Luxen, A., Franck, G., & Maquet, P. (1999) · NeuroImage · doi:10.1006/nimg.1998.0414 · Cited by 382
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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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