Measurements of consciousness in the vegetative state

  title={Measurements of consciousness in the vegetative state},
  author={Morten Storm Overgaard and Rikke Overgaard},
  journal={The Lancet},
Dissociation of Vegetative and Minimally Conscious Patients Based on Brain Operational Architectonics
It is concluded that the observed EEG OA structure impairment in patients in VS and partial preservation in patients with different brain damage etiologies is a marker of consciousness/unconsciousness rather than physiological damage.
Dissecting the coma spectrum using Bayesian classification
The methods presented are an important contribution to testing alternative hypotheses about how patients are grouped at both the group and single-patient level and propose that electrophysiological responses, recorded invasively or non-invasively, may be informative for the nosology of the coma spectrum on a par with behavioural diagnosis.
Long-Term (Six Years) Clinical Outcome Discrimination of Patients in the Vegetative State Could be Achieved Based on the Operational Architectonics EEG Analysis: A Pilot Feasibility Study
The obtained results suggest that EEG recorded at third month after sustaining brain damage, may contain useful information on the long-term outcome of patients in vegetative state: it could discriminate patients who remain in a persistent vegetativeState from patients who reach a minimally conscious state or even recover a full consciousness in a long- term perspective (6 years) post-injury.
Insect Consciousness
  • M. Overgaard
  • Biology, Philosophy
    Frontiers in Behavioral Neuroscience
  • 2021
If and how there could be an empirical and/or a theoretical approach to the question of consciousness in other species on the basis of current consciousness research in humans is analyzed.
Neurophysiological Assessments During Continuous Sedation Until Death Put Validity of Observational Assessments Into Question: A Prospective Observational Study
Caregivers’ subjective assessment of level of consciousness and pain during CSD is unreliable compared with objective neurophysiological monitoring, and results suggest that assessments of patient comfort duringCSD could have been improved substantially by including objective monitoring oflevel of Consciousness and pain.
Transient Topographical Dynamics of the Electroencephalogram Predict Brain Connectivity and Behavioural Responsiveness During Drowsiness
The findings demonstrate that the transition to unconsciousness is not linear, but rather consists of an interplay between transient brain networks reflecting different degrees of sleep depth.
Tracking brain dynamics across transitions of consciousness
My PhD was funded by the Cambridge Trust and a MariaMarina award from Lucy Cavendish College and is based on research at the University of Cambridge’s School of Engineering.
La définition de la mort et le prélèvement d'organes: Une controverse philosophique persistante
The present paper summarizes the main arguments of supporters and opponents of the organ retrieval procedure in brain dead patients.


Detecting Awareness in the Vegetative State
Functional magnetic resonance imaging was used to demonstrate preserved conscious awareness in a patient fulfilling the criteria for a diagnosis of vegetative state and the patient activated predicted cortical areas in a manner indistinguishable from that of healthy volunteers.
Willful modulation of brain activity in disorders of consciousness.
It is shown that a small proportion of patients in a vegetative or minimally conscious state have brain activation reflecting some awareness and cognition, and this technique may be useful in establishing basic communication with patients who appear to be unresponsive.
Neural Correlates of Contents and Levels of Consciousness
This paper gives one suggestion to grasp the interrelation, arguing that conscious levels are determined by conscious contents in a very specific way, following from the argument that conscious contents are so-called natural kinds, whereasconscious levels are not.
Unconscious High-Level Information Processing
  • Simon van GaalV. Lamme
  • Psychology, Biology
    The Neuroscientist : a review journal bringing neurobiology, neurology and psychiatry
  • 2012
It appears that specific brain areas (or cognitive modules) may support specific cognitive functions but that consciousness is independent of this, and the pivotal role of the prefrontal cortex in consciousness is challenged.
Fixation Patterns During Recognition of Personally Familiar and Unfamiliar Faces
It is suggested that in the context of familiarity decisions without time constraints, differences in processing familiar and unfamiliar faces arise relatively early – immediately upon initiation of the first fixation to identity-specific information – and that the local features of familiar faces are processed more than those of unfamiliar faces.