Carl Hart Quotes
Dopamine makes up less than one percent of the brain's neurotransmitters. It's a small portion. Dopamine is released when people are happy, angry, stressed. So it's really hard to call this specific neurotransmitter "the pleasure neurotransmitter."
Citations
Hart, Carl. "Let's Quit Abusing Drug Users." TEDMED, Sep. 2014.
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Carl L. Hart is an American psychologist and neuroscientist. He is a professor of psychology at Columbia University. Hart is known for his research in drug abuse and drug addiction. Hart is one of the first tenured African American professors of sciences at Columbia University.