>>>> A large study is to examine near-death experiences in cardiac arrest
>>>> patients.
>>>> Doctors at 25 UK and US hospitals will study 1,500 survivors to see if
>>>> people with no heartbeat or brain activity can have "out of body"
>>>> experiences.
>>>> Some people report seeing a tunnel or bright light, others recall
>>>> looking down from the ceiling at medical staff.
>>>> The study, due to take three years and co-ordinated by Southampton
>>>> University, will include placing on shelves images that could only be
>>>> seen from above.
>>>> To test this, the researchers have set up special shelving in
>>>> resuscitation areas. The shelves hold pictures - but they're visible
>>>> only from the ceiling.
>>>> Dr Sam Parnia, who is heading the study, said: "If you can demonstrate
>>>> that consciousness continues after the brain switches off, it allows
>>>> for the possibility that the consciousness is a separate entity.
>>>> "It is unlikely that we will find many cases where this happens, but
>>>> we have to be open-minded.
>>>> "And if no one sees the pictures, it shows these experiences are
>>>> illusions or false memories.
>>>> "This is a mystery that we can now subject to scientific study."
>>>> Dr Parnia works as an intensive care doctor, and felt from his daily
>>>> duties that science had not properly explored the issue of near-death
>>>> experiences.
>>>> He said: "Contrary to popular perception, death is not a specific
>>>> moment.
>>>> "It is a process that begins when the heart stops beating, the lungs
>>>> stop working and the brain ceases functioning - a medical condition
>>>> termed cardiac arrest.
>>>> "During a cardiac arrest, all three criteria of death are present.
>>>> There then follows a period of time, which may last from a few seconds
>>>> to an hour or more, in which emergency medical efforts may succeed in
>>>> restarting the heart and reversing the dying process.
>>>> "What people experience during this period of cardiac arrest provides
>>>> a unique window of understanding into what we are all likely to
>>>> experience during the dying process."
>>>> Dr Parnia and medical colleagues will analyse the brain activity of
>>>> 1,500 cardiac arrest survivors, and see whether they can recall the
>>>> images in the pictures.
>>>> Hospitals involved include Addenbrookes in Cambridge, University
>>>> Hospital in Birmingham and the Morriston in Swansea, as well as nine
>>>> hospitals in the US.
>>>>
http://news.bbc.co.uk/2/hi/health/7621608.stm