Growing a brain, inside a body (week 9)

Humans change - they grow, develop and mature. Lots of ways to look at this; measure is quantitatively, view it qualitatively or consider it's transformative nature. However, it clearly rests upon a biological entity (the human itself). It is fascinating, because it is us and those around us. (Growth, development and maturation definitions; p. 15, Barry Bogin, Patterns of Human Growth)

Human development (biology) Wikipedia.org article with mega-hypertext
Especially note the stages/phases of physical growth. Alternatively, consider simply the age of the organism. Age often reveals the stage of development and/or functional capacity. But individual variability can be great.
Seen a fetus lately?
Motor Milestones
Brain Growth
Major Events in Neural Development
Important terms, semi-chronological: proliferation (increase in number), migration (movement/organization), connection (preliminary and ongoing), pruning (normal early death of neurons not forming significant/useful connections), mylenation (temporal lobes not until ages 2-4, frontal lobes not until late 20s).

The only way to pack the incredible human cortex into our skulls is to fold it in upon itself - this is what gives the cortex is wrinkled look. This allows greater surface area in a smaller volume. The sulci are valleys and the gyri are the bumps or hills. Tracking the development of the folding process may give us an early indication of abnormal brain growth & development. See the brief report in the NCRR Reporter.

See this link for some physical growth charts by the WHO.

Marilyn Diamond (UC Berkeley), Godmother of lifelong cortical plasticity - or brain enrichment. Studied enriched environments effects on rat brain, behavior, health. Amazing stuff.

Response of the brain to enrichment (1997).