Event-related brain potential modulation in patients with severe brain damage

Highlights ► The chance to observe more robust and reliable ERP responses in patients with altered state of consciousness seems to be increased by the use of complex salient stimuli. ► The lack of a P3 latency modulation in VS may reflect an impairment of higher cognitive resources that involve sema...

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Bibliographic Details
Published in:Clinical neurophysiology 2011-04, Vol.122 (4), p.719-724
Main Authors: Cavinato, M, Volpato, C, Silvoni, S, Sacchetto, M, Merico, A, Piccione, F
Format: Article
Language:English
Subjects:
Acoustic Stimulation
Adult
Analysis of Variance
Behavioral psychophysiology
Biological and medical sciences
Brain - physiology
Brain Damage, Chronic - diagnosis
Brain Damage, Chronic - physiopathology
Cerebral Cortex - physiopathology
Consciousness
Consciousness - physiology
Diagnosis, Differential
Disability Evaluation
Electrodiagnosis. Electric activity recording
Electroencephalography
Electrophysiology
Event-related potentials
Evoked Potentials - physiology
Female
Fundamental and applied biological sciences. Psychology
Humans
Investigative techniques, diagnostic techniques (general aspects)
Male
Medical sciences
Minimally conscious state
Nervous system
Neurology
Persistent Vegetative State - diagnosis
Persistent Vegetative State - physiopathology
Persistent Vegetative State - psychology
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Reproducibility of Results
Vegetative state
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Summary:Highlights ► The chance to observe more robust and reliable ERP responses in patients with altered state of consciousness seems to be increased by the use of complex salient stimuli. ► The lack of a P3 latency modulation in VS may reflect an impairment of higher cognitive resources that involve semantic processes and language comprehension which are partially or completely preserved in the MCS. ► The presence of a modulation of P3 latency could provide valuable information about the cognitive capabilities of unresponsive patients and help in differential diagnosis.
ISSN:1388-2457
1872-8952
DOI:10.1016/j.clinph.2010.08.024