When a baby is not attended to that is interpreted as a danger in a baby’s brain. Neglect is a huge problem in the United States.
Click here to read more on the development of a child’s brain.
http://developingchild.harvard.edu/resources/multimedia/videos/inbrief_series/inbrief_neglect/
http://astore.amazon.com/lifsjouagrass-20/detail/B005ELMC0Q