Why You Want a Brain Transplant?

Russian scientist Vladimir Demikhov successfully transplanted the head of one dog onto the body of another, creating two-headed animals that were conscious and retained their own personalities.
in 1964 the American scientist Robert White successfully removed just the brain from one dog, carefully transplanting it into the body of another.
White reconnected the blood vessels, and EEG readings showed the brain was later functioning normally. The brain, of course, could do nothing more than exist, thinking and deprived of senses.
In the 1970s, White successfully performed a head transplant between two monkeys.
Decapitating both animals, the surgeon managed to stitch the head of one monkey on to the body of the other. The resulting monkey lived for eight days!
After the surgery, the monkey could still hear, smell, taste, eat and follow objects with its eyes. Not only could it use its senses, it tried to bite the hand of a researcher.
In 1982, scientist Dorothy T. Krieger successfully transplanted a partial brain from one mouse into another, it not only survived, but also correctly hooked itself up and functioned almost normally.
In 1998, a team of surgeons transplanted a group of brain cells into 9 human stroke patients. A year later, 3 patients told their doctors that their symptoms, such as difficulty with walking and weakness of limbs, had improved. These cells were grown in a lab.