Paus Tomás, Keshavan Matcheri, Giedd Jay N
Brain & Body Centre, University of Nottingham, Nottingham, NG7 2RD, UK.
Nat Rev Neurosci. 2008 Dec;9(12):947-57. doi: 10.1038/nrn2513. Epub 2008 Nov 12.
The peak age of onset for many psychiatric disorders is adolescence, a time of remarkable physical and behavioural changes. The processes in the brain that underlie these behavioural changes have been the subject of recent investigations. What do we know about the maturation of the human brain during adolescence? Do structural changes in the cerebral cortex reflect synaptic pruning? Are increases in white-matter volume driven by myelination? Is the adolescent brain more or less sensitive to reward? Finding answers to these questions might enable us to further our understanding of mental health during adolescence.
许多精神疾病的发病高峰年龄是青春期,这是一个身体和行为发生显著变化的时期。构成这些行为变化基础的大脑过程是最近研究的主题。我们对青春期人类大脑的成熟了解多少?大脑皮层的结构变化是否反映了突触修剪?白质体积的增加是由髓鞘形成驱动的吗?青春期大脑对奖励的敏感度是更高还是更低?找到这些问题的答案可能会使我们进一步了解青春期的心理健康。