Childhood poverty, chronic stress, and adult working memory
Childhood poverty, chronic stress, and adult working memory
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DOI：
10.1073/pnas.0811910106
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发表时间：
2009-04-21
影响因子：
11.1
通讯作者：
Schamberg, Michelle A.
中科院分区：
文献类型：
--
作者：
Evans, Gary W.;Schamberg, Michelle A.
收入-成就差距是一个可怕的社会问题，但人们对可能导致收入相关的学业成就缺陷的神经认知或生物机制知之甚少。我们发现，童年贫困与年轻人的工作记忆呈负相关。此外，这种预期的关系是由童年时期的慢性压力升高介导的。慢性压力是通过非稳态负荷来测量的，非稳态负荷是身体上累积磨损的生物标志物，是由多个生理系统响应慢性环境需求而动员引起的。
The income-achievement gap is a formidable societal problem, but little is known about either neurocognitive or biological mechanisms that might account for income-related deficits in academic achievement. We show that childhood poverty is inversely related to working memory in young adults. Furthermore, this prospective relationship is mediated by elevated chronic stress during childhood. Chronic stress is measured by allostatic load, a biological marker of cumulative wear and tear on the body that is caused by the mobilization of multiple physiological systems in response to chronic environmental demands.