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The Secret Life of the Brain
History of the Brain 3-D Brain Anatomy Mind Illusions Scanning the Brain The Episodes:

Episode 1: The Baby's Brain - Infant Vision
Drag up or down What the eyes see
Newborn
1 Month
2 Months
3 Months
6 Months
Adult
Courtsey of Tony Young
1 Month
As underdeveloped newborn vision might be, it is not a handicap. Rather, it helps the newborn by preventing excessive visual stimulation. An infant's brain is still developing in the first few months of life outside the womb. This is true of the whole brain but more specifically it is true of the visual cortex. The cells that make up the visual cortex in an infant are not yet segregated by function and type, as they are in adults. Furthermore, most of the cells are not yet coated with myelin, a white, fatty substance that aids neural transmission. The dentrites that, in adults, reach many layers of the cortex, are still very short. Combined, these factors cause poor contrast sensitivity and relatively poor color recognition.



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