Sunday, December 04, 2011

Science of babies

First breath is a transformation. Hugely important.

We are born when we are due to the brain size and the size of the birth canal passage. in humans, babies need to be rotated to pass through; other mammals can do it on their own.

Humans have some pre-programmed reflexes
Rest is learned behaviour

we are born with about a hundred billion neurons. this stays about the same during the lifetime. What develops is connections. Which can become as many as a quadrillion in the first year..

Much of the philosophy is use it or lose it.
 If one eye develops cataract, the good eye blocks off connections of the bad eye to the brain; so, if you fixed the cataract after the baby is a little older, it will not restore vision, because the eye has been blocked off by the brain. After fixingg the eye early, the good eye is shut off for a period to help the operated eye catchup to the good eye. Visual cortexes.

Humans are the only bipedal creatures.


http://movies.netflix.com/WiMovie/National_Geographic_Science_of_Babies/70144620?trkid=2361637