ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Awareness  (1)
  • Bayes Theorem  (1)
  • American Association for the Advancement of Science (AAAS)  (1)
  • 1
    Publication Date: 2011-05-14
    Description: Frontoparietal cortex is involved in the explicit processing (awareness) of stimuli. Frontoparietal activation has also been found in studies of subliminal stimulus processing. We hypothesized that an impairment of top-down processes, involved in recurrent neuronal message-passing and the generation of long-latency electrophysiological responses, might provide a more reliable correlate of consciousness in severely brain-damaged patients, than frontoparietal responses. We measured effective connectivity during a mismatch negativity paradigm and found that the only significant difference between patients in a vegetative state and controls was an impairment of backward connectivity from frontal to temporal cortices. This result emphasizes the importance of top-down projections in recurrent processing that involve high-order associative cortices for conscious perception.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boly, Melanie -- Garrido, Marta Isabel -- Gosseries, Olivia -- Bruno, Marie-Aurelie -- Boveroux, Pierre -- Schnakers, Caroline -- Massimini, Marcello -- Litvak, Vladimir -- Laureys, Steven -- Friston, Karl -- 088130/Wellcome Trust/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2011 May 13;332(6031):858-62. doi: 10.1126/science.1202043.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Coma Science Group, Cyclotron Research Centre and Neurology Department, University of Liege and CHU Sart Tilman Hospital, 4000 Liege, Belgium. mboly@ulg.ac.be〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21566197" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; Aged, 80 and over ; Auditory Perception ; Awareness ; Bayes Theorem ; Brain Mapping ; *Consciousness ; Electroencephalography ; *Evoked Potentials, Auditory ; Female ; Frontal Lobe/physiology/*physiopathology ; Humans ; Male ; Middle Aged ; Models, Neurological ; Models, Statistical ; Neural Pathways ; Parietal Lobe/physiology/*physiopathology ; Persistent Vegetative State/diagnosis/*physiopathology ; Reaction Time ; Temporal Lobe/physiology/*physiopathology ; Young Adult
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...