Arab Today, arab today hidden brain signatures in vegetative state
Last Updated : GMT 00:51:37
Arab Today, arab today
Arab Today, arab today

'Hidden brain signatures' in Vegetative state

Arab Today, arab today

Arab Today, arab today 'Hidden brain signatures' in Vegetative state

'Hidden brain signatures' in Vegetative state
Tehran - FNA

 Scientists found hidden signatures in the brains of people in a vegetative state, which point to networks that could support consciousness even when a patient appears to be unconscious and unresponsive. The study could help doctors identify patients who are aware despite being unable to communicate.
There has been a great deal of interest recently in how much patients in a vegetative state following severe brain injury are aware of their surroundings. Although unable to move and respond, some of these patients are able to carry out tasks such as imagining playing a game of tennis. Using a functional magnetic resonance imaging (fMRI) scanner, which measures brain activity, researchers have previously been able to record activity in the pre-motor cortex, the part of the brain which deals with movement, in apparently unconscious patients asked to imagine playing tennis.
Now, a team of researchers led by scientists at the University of Cambridge and the MRC Cognition and Brain Sciences Unit, Cambridge, have used high-density electroencephalographs (EEG) and a branch of mathematics known as 'graph theory' to study networks of activity in the brains of 32 patients diagnosed as vegetative and minimally conscious and compare them to healthy adults. The findings of the research are published today in the journal PLOS Computational Biology. The study was funded mainly by the Wellcome Trust, the National Institute of Health Research Cambridge Biomedical Research Centre and the Medical Research Council (MRC).
The researchers showed that the rich and diversely connected networks that support awareness in the healthy brain are typically -- but importantly, not always -- impaired in patients in a vegetative state. Some vegetative patients had well-preserved brain networks that look similar to those of healthy adults -- these patients were those who had shown signs of hidden awareness by following commands such as imagining playing tennis.
Dr Srivas Chennu from the Department of Clinical Neurosciences at the University of Cambridge says: "Understanding how consciousness arises from the interactions between networks of brain regions is an elusive but fascinating scientific question. But for patients diagnosed as vegetative and minimally conscious, and their families, this is far more than just an academic question -- it takes on a very real significance. Our research could improve clinical assessment and help identify patients who might be covertly aware despite being uncommunicative."
The findings could help researchers develop a relatively simple way of identifying which patients might be aware whilst in a vegetative state. Unlike the 'tennis test', which can be a difficult task for patients and requires expensive and often unavailable fMRI scanners, this new technique uses EEG and could therefore be administered at a patient's bedside. However, the tennis test is stronger evidence that the patient is indeed conscious, to the extent that they can follow commands using their thoughts. The researchers believe that a combination of such tests could help improve accuracy in the prognosis for a patient.
Dr Tristan Bekinschtein from the MRC Cognition and Brain Sciences Unit and the Department of Psychology, University of Cambridge, adds: "Although there are limitations to how predictive our test would be used in isolation, combined with other tests it could help in the clinical assessment of patients. If a patient's 'awareness' networks are intact, then we know that they are likely to be aware of what is going on around them. But unfortunately, they also suggest that vegetative patients with severely impaired networks at rest are unlikely to show any signs of consciousness."

 

Name *

E-mail *

Comment Title*

Comment *

: Characters Left

Mandatory *

Terms of use

Publishing Terms: Not to offend the author, or to persons or sanctities or attacking religions or divine self. And stay away from sectarian and racial incitement and insults.

I agree with the Terms of Use

Security Code*

Arab Today, arab today hidden brain signatures in vegetative state Arab Today, arab today hidden brain signatures in vegetative state

 



Arab Today, arab today
Arab Today, arab today Ideen Belmahdy happy to be part of “ Fashion Star”

GMT 17:00 2017 Sunday ,26 February

Ideen Belmahdy happy to be part of “ Fashion Star”
Arab Today, arab today 17.4m tourists visit UAE in 2016

GMT 00:47 2017 Monday ,27 February

17.4m tourists visit UAE in 2016
Arab Today, arab today Expresses Algerian history by woody figures

GMT 13:26 2017 Friday ,24 February

Expresses Algerian history by woody figures
Arab Today, arab today Iran complying with nuclear deal

GMT 07:14 2017 Saturday ,25 February

Iran complying with nuclear deal
Arab Today, arab today Ayat Abaza says state TV presented major stars

GMT 03:52 2017 Sunday ,26 February

Ayat Abaza says state TV presented major stars
View News in Arabic - Education: كتب ومراجع وأبحاث
Arab Today, arab today
Arab Today, arab today
Arab Today, arab today Reading therapy relieves mental disorders

GMT 15:39 2017 Friday ,24 February

Reading therapy relieves mental disorders
Arab Today, arab today UK appoints 1st Scotland Yard chief in 188 years

GMT 05:14 2017 Thursday ,23 February

UK appoints 1st Scotland Yard chief in 188 years
Arab Today, arab today Penguins in the age of dinos

GMT 11:44 2017 Saturday ,25 February

Penguins in the age of dinos
Arab Today, arab today Pluto's unruly moons

GMT 06:31 2015 Thursday ,04 June

Pluto's unruly moons
Arab Today, arab today 'Constructive' Vauxhall talk with union

GMT 08:54 2017 Saturday ,25 February

'Constructive' Vauxhall talk with union
Arab Today, arab today Tesla back into red but revenue grows

GMT 07:27 2017 Thursday ,23 February

Tesla back into red but revenue grows
Arab Today, arab today Ola Ghanem hopes to work with M.Ramadan

GMT 07:23 2017 Friday ,24 February

Ola Ghanem hopes to work with M.Ramadan
Arab Today, arab today Ex-yoga missionary unleashes rage

GMT 12:16 2017 Thursday ,23 February

Ex-yoga missionary unleashes rage

GMT 06:08 2017 Thursday ,23 February

Actress Lobna Abdel Aziz proud of her career

GMT 12:35 2017 Tuesday ,21 February

63-Year-Old Woman Delivers Baby

GMT 13:47 2017 Friday ,24 February

Rabia Fatima reveals role of "Facebook" in her career

GMT 10:28 2017 Wednesday ,22 February

Milan laughs while Rome cries

GMT 20:33 2017 Friday ,17 February

To release new antiques collection

GMT 10:20 2017 Thursday ,23 February

Brazil's top diplomat resigns

GMT 14:04 2017 Friday ,24 February

Messi visit will contribute in tourism

GMT 13:12 2015 Saturday ,09 May

Sheikh Sultan opens Sharjah Centre
Arab Today, arab today
Arab Today, arab today
 
 Arab Today Facebook,arab today facebook  Arab Today Twitter,arab today twitter Arab Today Rss,arab today rss  Arab Today Youtube,arab today youtube  Arab Today Youtube,arab today youtube
arabstoday arabstoday arabstoday arabstoday
arabstoday arabstoday arabstoday
arabstoday
بناية النخيل - رأس النبع _ خلف السفارة الفرنسية _بيروت - لبنان
arabstoday, Arabstoday, Arabstoday