Patients in Vegetative State can Still Learn

by Rajashri on  September 21, 2009 at 11:26 PM Research News   - G J E 4
 Patients in Vegetative State can Still Learn
A Cambridge University study has indicated that patients who are in vegetative states can still learn despite having no signs of consciousness.The study involved 22 people in a persistent vegetative state, who were tested for Pavlovian-like responses.

The researchers played a sound before puffing air into the eyes of these patients. In some patients, there was a twitch in eye muscles as they anticipated the puff of air after the sound was played.

"These were classic Pavlovian experiments and some patients, but not all of them, started to respond," said study leader Dr Tristan Bekinschtein from the University of Cambridge. "They were clearly anticipating the stimulus would come, so there is some kind of perception and from the point of view of the patient who is allegedly unconscious this could have profound implications."

The details of the study appear in the latest issue of Nature Neuroscience.

Source: Medindia

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