Impulsive Aggressive Behavior in Medicine / Internal Medicine — 28yo Man | Psychiatry | SMLE Q#1216
SMLE Question #1216
Medicine / Internal Medicine
Psychiatry
Last updated: February 2026
A 28-year-old man is brought to the emergency department by police after repeatedly starting fights at a bar. Friends report years of aggressive outbursts and poor impulse control over minor disagreements. He denies hallucinations and denies substance use today. Neurologic examination is normal. Dysregulation of which neurotransmitter system is most directly associated with impulsive aggressive behavior?
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