气候变化领域集成服务门户(CCPortal): Combat stress in a small-scale society suggests divergent evolutionary roots for posttraumatic stress disorder symptoms

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DOI	10.1073/pnas.2020430118
	Combat stress in a small-scale society suggests divergent evolutionary roots for posttraumatic stress disorder symptoms
	Zefferman M.R.; Mathew S.
发表日期	2021
ISSN	00278424
卷号	118 期号:15
英文摘要	Military personnel in industrialized societies often develop posttraumatic stress disorder (PTSD) during combat. It is unclear whether combat-related PTSD is a universal evolutionary response to danger or a culture-specific syndrome of industrialized societies. We interviewed 218 Turkana pastoralist warriors in Kenya, who engage in lethal cattle raids, about their combat experiences and PTSD symptoms. Turkana in our sample had a high prevalence of PTSD symptoms, but Turkana with high symptom severity had lower prevalence of depression-like symptoms than American service members with high symptom severity. Symptoms that facilitate responding to danger were better predicted by combat exposure, whereas depressive symptoms were better predicted by exposure to combat-related moral violations. The findings suggest that some PTSD symptoms stem from an evolved response to danger, while depressive PTSD symptoms may be caused by culturally specific moral norm violations. © This open access article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND).
英文关键词	Combat stress; Cross-cultural psychology; Evolutionary medicine; Moral injury; PTSD
语种	英语
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/179899
作者单位	Department of Defense Analysis, Naval Postgraduate School, Monterey, CA 93943, United States; Institute of Human Origins, Arizona State University, Tempe, AZ 85281, United States; School of Human Evolution and Social Change, Arizona State University, Tempe, AZ 85281, United States
推荐引用方式 GB/T 7714	Zefferman M.R.,Mathew S.. Combat stress in a small-scale society suggests divergent evolutionary roots for posttraumatic stress disorder symptoms[J],2021,118(15).
APA	Zefferman M.R.,&Mathew S..(2021).Combat stress in a small-scale society suggests divergent evolutionary roots for posttraumatic stress disorder symptoms.Proceedings of the National Academy of Sciences of the United States of America,118(15).
MLA	Zefferman M.R.,et al."Combat stress in a small-scale society suggests divergent evolutionary roots for posttraumatic stress disorder symptoms".Proceedings of the National Academy of Sciences of the United States of America 118.15(2021).