Psychiatry

Answer 4 Hippocampus. The hippocampus is a part of the brain significant in learning, memory, and regulation of emotion. Studies of nonhuman primates have demonstrated that severe stress can decrease hippocampal neurogenesis and produce cell atrophy and death. Based on these findings, researchers have examined the brains of individuals with PTSD. Magnetic resonance imaging studies show that hippocampal volume is reduced in patients with PTSD.3 REFERENCE 3. Bremner JD, Randall P, Vermetten E, et al: Magnetic resonance imaging-based measurement of hippocampal volume in posttraumatic stress disorder related to childhood physical and sexual abuse - a preliminary report. Biol Psychiatry 1997;41:23-32. Click here to return to the questions

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