Preverbal communication means any social behavior that occurs before children communicate verbally. Generally, these communicative behaviors are categorized into two ways: as behavior regulation (BR) or joint attention (JA) skills. BR, also referred to as requesting, involves the use of behaviors to gain something or receive assistance (Mundy et…

Approximately 20,000 children are adopted from foreign countries each year. Of these children, approximately 46% are adopted before they are 12 months old and 43% are adopted between 1 and 4 years of age. The development of children adopted from abroad before or by 2 years of age is the focus of this article. Given the impoverished language input…

Research programs of the human learning and behavior branch of the National Institute of Child Health and Human Development (NICHHD) are described in five sections of this document. The specific programs conducted in the areas of learning and cognitive development, development of communicative abilities, biological bases of behavioral development,…

Parents of 31 developmentally delayed children (ages 1-27 months) received training to assess their children's developmental status. No initial differences existed between parent and professional scores in the motor, social, or language domains. Differences in the self-help domain disappeared after 4 months and in the cognitive domain after 12…