期刊
JOURNAL OF NEUROSCIENCE
卷 39, 期 42, 页码 8362-8375出版社
SOC NEUROSCIENCE
DOI: 10.1523/JNEUROSCI.2422-18.2019
关键词
childhood; development; imaging; maturation; self-regulation
资金
- New York State Psychiatric Institute
- National Institute of Environmental Health Sciences(NIEHS) [2 P50 ES009600]
- National Institute on Drug Abuse [EPA 83615401, 1R01DA027100]
- NIEHS [5R01ES015579]
- Neuropsychology Core at The Saban Research Institute of Children's Hospital Los Angeles
- Columbia University
Children ages 9 -12 years face increasing social and academic expectations that require mastery of their thoughts, emotions, and behavior. Little is known about the development of neural pathways integral to these improving capacities during the transition from childhood to adolescence. Among 234 healthy, inner-city male and female youth (species Homo sapiens) 9 -12 years of age followed by the Columbia Center for Children's Environmental Health, we acquired diffusion tensor imaging, multiplanar chemical shift imaging, and cognitive measures requiring self-regulation. We found that increasing age was associated with increased fractional anisotropy and decreased apparent diffusion coefficient, most prominently in the frontal and cingulate cortices, striatum, thalamus, deep white matter, and cerebellum. Additionally, we found increasing age was associated with increased N-acetyl-L-aspartate (NAA) in the anterior cingulate and insular cortices, and decreased NAA in posterior cingulate and parietal cortices. Age-associated changes in microstructure and neurometabolite concentrations partially mediated age-related improvements in performance on executive function tests. Together, these findings suggest that maturation of key regions within cortico-striatal-thalamo-cortical circuits subserve the emergence of improved self-regulatory capacities during the transition from childhood to adolescence.
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