Electrical stimulation of the ________ induces a feeling of fear in humans.
A) nucleus accumbens
B) thalamus
C) periaqueductal gray matter
D) amygdala
E) reticular activating system
Question 2
An example of a species-typical defensive response for a rat is
A) freezing of motor movements.
B) sniffing.
C) approach.
D) eating and drinking.
E) grooming.