Which of the Following Statements About the Use of Prefrontal

Multiple Choice

Which of the following statements about the use of prefrontal lobotomies as a treatment is TRUE?

A) In the 1940's and 1950's researchers experimented on people with mental illnesses and found that prefrontal lobotomies had a calming effect.
B) A limited form of this treatment is still used today for people who do not respond to drug therapies.
C) Patients such as Phineas Gage suggested that the prefrontal region is only superficially involved in mental functions.
D) Chimpanzees who underwent prefrontal lobotomies show problems with impulse control and aggression.