“The little human”: image source: Wikimedia Commons  In this journey, we will meet “Two little humans” who “live” on the brain surface. Dr. Wilder Penfield and Edwin Boldrey “discovered” them in 1937. That is an amazing story. They began their expedition while working at McGill University. Dr. Wilder Penfield served there as a brain surgeon. During that time, while operating under local anesthesia, they mapped corresponding brain regions where the sensory information are received from different body parts. They also succeeded in demonstrating the corresponding brain regions which send signals to move relevant body parts. Together with Edwin Boldrey, he…