Sample Psychology Paper on Neurotransmitters

Pick a neurotransmitter, Serotonin. Then, describe the effects on a person who has too much or too little Serotonin, for two of the categories below. For example, a person who has too much adrenaline might be aggressive and have an elevated heartbeat (behavioral and physiological).

Behavioral.
Cognitive.
Emotional.
Physiological.
Support your ideas using the course text and at least one other scholarly source. Reference your sources using standard APA guidelines.