When Coccaro and colleagues studied men with a history of impulsive aggression, they found that these men had
A) low levels of dopamine.
B) high levels of serotonin.
C) low levels of serotonin.
D) high levels of dopamine.
E) low levels of both dopamine and serotonin.

Question

Quizplus · Accepted Answer

Coccaro and colleagues found that men with a history of impulsive aggression had low levels of serotonin, which is associated with increased aggression and impulsive behavior.

When Coccaro and Colleagues Studied Men with a History of Impulsive