This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Psychiatry
Scientist who won Nobel prize for research in split brain personality? 
Select and explain. 
A. Penfield, B. Roger Sperry, C. Michael Morgis, D. George D. Snell
B: Roger Sperry
Answer: B: Roger Sperry 
Explanation: (B) Roger Sperry# Roger Sperry being awarded the Nobel Prize in Physiology or Medicine in 1981.> Sperry received the prize for his discoveries concerning the functional specialization of the cerebral hemispheres.> With the help of so-called "split brain" patients, he carried out experiments, and for the first time in history, knowledge about the left and right hemispheres was revealed.