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Table 2 Fifteen developmental periods of the human brain as defined by Kang et al.

From: brain-coX: investigating and visualising gene co-expression in seven human brain transcriptomic datasets

Period Description Age range
1 Embryonic 4–8 PCW
2 Early fetal 8–10 PCW
3 Early fetal 10–13 PCW
4 Early mid-fetal 13–16 PCW
5 Early mid-fetal 16–19 PCW
6 Late mid-fetal 19–24 PCW
7 Late fetal 24–18 PCW
8 Neonatal and early infancy Birth to 6 M
9 Late infancy 6 M–1 Y
10 Early childhood 1–6 Y
11 Middle and late childhood 6–12 Y
12 Adolescence 12–20 Y
13 Young adulthood 20–40 Y
14 Middle adulthood 40–60 Y
15 Late adulthood 60+ Y
  1. M months, PCW post-conception weeks, Y years