Reactive Attachment Disorder

A condition with onset before age five, resulting from an early lack of consistent care, characterized by a child's or infant's inability to make appropriate social contact with others. Symptoms may include failure to thrive, developmental delays, failure to make eye contact, feeding disturbances, hyper-sensitivity to touch and sound, failure to initiate or respond to social interaction, indiscriminate sociability, self-stimulation, and susceptibility to infection.

Source: Children Welfare Information Gateway