Question

A century ago, scientists used _______ to help them determine that the right side of the body was connected to the left side of the brain, and vice versa; that damage to the back of the brain resulted in vision damage; and that damage to the left-front part of the brain produced difficulties with speech.

Answer 1

Scientists used case studies to help them determine that the right side of the body was connected to the left of the brain and vice versa. A case study is a process or record of research into the development of a particular person, group or situation of a given period of time.