Section on Development and Affective Neuroscience, National Institute of Mental Health, Bethesda, MD, 20892, United States; Department of Human Development and Quantitative Methodology, University of Maryland, College Park, MD, 20742, United States.
Section on Development and Affective Neuroscience, National Institute of Mental Health, Bethesda, MD, 20892, United States.
Dev Cogn Neurosci. 2020 Apr;42:100776. doi: 10.1016/j.dcn.2020.100776. Epub 2020 Mar 21.
The current study examined the link between temperamental reactivity in infancy and amygdala development in middle childhood. A sample (n = 291) of four-month-old infants was assessed for infant temperament, and two groups were identified: those exhibiting negative reactivity (n = 116) and those exhibiting positive reactivity (n = 106). At 10 and 12 years of age structural imaging was completed on a subset of these participants (n = 75). Results indicate that, between 10 and 12 years of age, left amygdala volume increased more slowly in those with negative compared to positive reactive temperament. These results provide novel evidence linking early temperament to distinct patterns of brain development over middle childhood.
本研究探讨了婴儿期气质反应性与儿童中期杏仁核发育之间的关系。对 291 名四个月大的婴儿进行了婴儿气质评估，并确定了两组：表现出负性反应性的婴儿（n=116）和表现出正性反应性的婴儿（n=106）。在这些参与者的一部分（n=75）中，在 10 岁和 12 岁时完成了结构成像。结果表明，在 10 至 12 岁之间，与具有正性反应性的儿童相比，具有负性反应性的儿童的左杏仁核体积增长更缓慢。这些结果为将早期气质与儿童中期大脑发育的不同模式联系起来提供了新的证据。
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