期刊
DEVELOPMENTAL PSYCHOBIOLOGY
卷 63, 期 2, 页码 153-172出版社
WILEY
DOI: 10.1002/dev.21969
关键词
adolescence; adversity; brain development; childhood; early-life stress; infancy; mental health
资金
- National Science Foundation [2017164128]
- Jacobs Foundation
- NIH Office of the Director [DP5OD021370]
- Brain Behavior Research Foundation
Early-life stress has profound and lasting effects on cognitive, social, emotional, and physical health, with the frontolimbic circuitry particularly susceptible to these effects. Recent studies have shifted towards a dimensional approach, considering factors like timing, type, severity, controllability, predictability of stress, and caregiver involvement to understand the variability in outcomes related to stress exposure.
Early-life stress confers profound and lasting risk for developing cognitive, social, emotional, and physical health problems. The effects of stress on the developing brain contribute to this risk, with frontolimbic circuitry particularly susceptible to early experiences, possibly due to its innervation with glucocorticoid receptors and the timing of frontolimbic circuit maturation. To date, the majority of studies on stress and frontolimbic circuitry have employed a categorical approach, comparing stress-exposed versus non-stress-exposed youth. However, there is vast heterogeneity in the nature of stress exposure and in outcomes. Recent forays into understanding the psychobiological effects of stress have employed a dimensional approach focused on experiential, environmental, and temporal factors that influence the association between stress and subsequent vulnerability. This review highlights empirical findings that inform a dimensional approach to understanding the effects of stress on frontolimbic circuitry. We identify the timing, type, severity, controllability, and predictability of stress, and the degree to which a caregiver is involved, as specific features of stress that may play a substantial role in differential outcomes. We propose a framework for the effects of these features of stress on frontolimbic development that may partially determine how heterogeneity in stress exposure influences this circuitry and, ultimately, mental health.
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