He "Seemed Entirely Undamaged in Mental Capacity" After They Removed Half His Brain

 Below is a news report that appeared in the November 10, 1933 edition of a newspaper called the Sedalia Democrat, a news report you can read here. 

In the story above we read this:

"Dr. Gardner removed the entire right half of the brain. The patient recognized friends immediately on recovering from  the anesthetic and seemed entirely undamaged in mental capacity."

The headline refers to Dr. Dandy.  The case of Dandy's patients is reported in the American Journal of Psychology, Vol. 46, No. 3 (Jul., 1934), pages 500-503. We read this: 

"Dandy has completely removed the right cerebral hemisphere from eight patients. He has performed total extirpations of one or more lobes much oftener... There are tabulated below certain generalizations on the effects of removing the right hemisphere.... The operation was the complete extirpation of the right frontal, temporal, parietal, and occipital lobes peripheral to the corpus striatum. The weight of the tissue re moved varies, with the pathological conditions involved, from 250 to 584 grm [grams].Coherent conversation began within twenty-four hours after operation, and in one case on the afternoon of the same day. Later examinations showed no observable mental changes. The patients were perfectly oriented in respect of time, place, and person; their memory was unimpaired for immediate and remote events; conversation was always coherent; ability to read, write, compute, and learn new material was unaltered. Current events were followed with normal interest. There were no personality changes apparent; the patients were emotionally stable, without fears, delusions, hallucinations, expansive ideas or obsessions, and with a good sense of humor; they joked frequently. They showed a natural interest in their condition and future. They cooperated intelligently at all times throughout post-operative care and subsequent testing of function." 

How could the memory of patients be "unimpaired for immediate and remote events" if memories are stored in brains?

Here is a quote from the newspaper article you can read here:

"Three seven-year-old chil­dren. Albert has had half his dam­aged brain removed by surgeons. Charley has millions of dead cells in his brain but has responded to nonsurgical treatment. Billy has a nor­mal brain. Yet all three are equal in intelligence."

So Albert who had half his brain removed (probably to treat epilepsy) had an intelligence equal to Billy who had a normal brain. That's not what we would expect under "brains make minds" assumptions. 

Below we read a report by a doctor who attended a conference of the American Medical Association. In the bottom right corner, we hear he heard about a young girl who had "one-half of her brain removed for epilepsy." We are not told about any problem that the girl suffered, but merely told that "she is able to conduct her life and affairs with considerable success."