In rare cases, a procedure called a "hemispherectomy" is sometimes performed to treat extremely severe epilepsy. In this procedure, one of the two lobes of the brain is entirely disconnected or even removed from the skull. Outcomes vary, but in some cases patients can have almost entirely normal cognitive functions, even going on to complete higher education. Compared to the average person, hemispherectomy patients are an example of similarity at Marr's computational level and dissimilarity at the implementation level.
a. True
b. False