Regarding the use of brain stimulation research, which of the following statements is FALSE?

a. Brain research is often based on electrical stimulation, but chemical stimulation is also used at times.
b. Electrical stimulation of the brain (ESB) has been used to instantly call forth euphoria, aggression, or tears in a person.
c. Electrical stimulation of the brain (ESB) has been used to control a person's actions and personality, like a robot.
d. Electrical stimulation of the brain (ESB) has been used to instantly call forth eating, sleeping, or speech in a person.

c