The computer in the brain lab changes from IBM compatible type (when switched off) to Commodore Amiga (when graphics is displayed).
When Dr. Martin is reviewing Halsey's brain scans on the computer, the monitor displays the misspelled word "disfunction." ("Dysfunction" is the correct spelling.)
Dr. Martin advertises his brain surgery method by comparing it to a lobotomy, even showing a gruesome movie of Walter Freeman doing his infamous "icepick lobotomy". The lobotomy practice damaged the reputation of psycho surgery severely, so there is no reason why a serious scientist would deliberately compare his work to that. Then again, it works fine for a horror movie.