A reasonable estimate is that an infant loses 1-2 IQ points per month and sustains predictable losses in growth as well as motor and language development between 4 and 24 months of age while living in an institutional environment.  -   Dana Johnson     Quotes
A reasonable estimate is that an infant loses 1-2 IQ points per month and sustains predictable losses in growth as well as motor and language development between 4 and 24 months of age while living in an institutional environment. Dana Johnson
 Growth