When patients are put under general anaesthesia, their brain activity frequently slows as they fall asleep. Higher anaesthetic medication dosages can cause an even deeper state of unconsciousness called burst suppression, which is associated with cognitive deficits once the patient awakens.
Joondalup [Australia], September 6 (ANI): Though many of us prefer a peaceful environment in which to study, 'noise' may play an important role in assisting some people in improving their learning ability.