期刊
DEVELOPMENTAL NEUROPSYCHOLOGY
卷 19, 期 2, 页码 147-171出版社
ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
DOI: 10.1207/S15326942DN1902_2
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资金
- NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE [R01NS032976] Funding Source: NIH RePORTER
- NICHD NIH HHS [HD01751] Funding Source: Medline
- NIMH NIH HHS [MH12132] Funding Source: Medline
- NINDS NIH HHS [NS32976] Funding Source: Medline
This review focuses on the postnatal neuroanatomical changes that arise during the first years of human life. Development is characterized by 2 major organizational periods. The first period begins at conception and includes the major histogenetic events such as neurulation, proliferation, migration, and differentiation. It has been proposed that these events may be controlled by genetic and epigenetic events, which give rise to neural structures that are amenable to external influence. The second period is a time of reorganization in the human cortex. These events occur during gestation and continue postnatally, possibly through the 2nd decade of life. This stage is characterized by dendritic and axonal growth, synapse production, neuronal and synaptic pruning, and changes in neurotransmitter sensitivity. Although the initiation of these events is influenced by endogenous signals, further neural maturation is primarily influenced by exogenous signals. To illustrate both the progressive and regressive events during the postnatal period, we use examples from the development of the human cortex.
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