"Study into near-death experiences":

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...