Which of the following statements about neurotransmitters and personality is true?
a. Neurotransmitters have no relation to personality.
b. A high level of the neurotransmitter dopamine seems to result in high impulsivity.
c. Neurotransmitters appear to be linked only to neuroticism.
d. Research suggests a link between personality and specific neurotransmitters.
Question 2
Which of the Big Five traits has shown up in brain scans?
a. all of them
b. conscientiousness
c. neuroticism
d. extraversion