alexa Conscious awareness in patients in vegetative states: myth or reality?
Neurology

Neurology

Brain Disorders & Therapy

Author(s): Celesia GG

Abstract Share this page

Abstract Do vegetative state (VS) and minimally conscious state (MCS) patients experience emotions and have conscious awareness of themselves and their surroundings? Can neuroimaging clarify these questions? Neuroimaging responses to stimuli are classified into four levels: level 0 indicates no response; level 1 indicates responses limited to the primary sensory cortices; level 2 indicates activation of primary sensory cortices and higher-order associative areas; level 3 indicates activation of cortical regions to either mental imagery tasks or high-level language stimuli requiring distinction of ambiguous from unambiguous words. Level 0 or level 1 was noted in 125 of 193 VS patients (65 \%) and 46 of 121 MCS patients (38 \%), suggesting no evidence of conscious awareness. Level 2 or level 3 was observed in 68 of 193 VS patients (35 \%) and 75 of 121 MCS patients (62 \%), indicating some cognitive processing. These data may denote the presence of conscious awareness or may simply identify neuronal processing without phenomenological awareness. The pro and cons of these conflicting interpretations are discussed. This article was published in Curr Neurol Neurosci Rep and referenced in Brain Disorders & Therapy

Relevant Expert PPTs

Relevant Speaker PPTs

Recommended Conferences

Relevant Topics

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords