Results indicated that the more frequently the children studied expressed emotion, the older the age of language achievements; and the more time spent in neutral affect, the younger the age of language achievements. (PCB)

The infant's impressions of his environment are viewed by several philosophers, including Jean Piaget. There has been some past tendency to suppose that, prior to the acquisition of language, the infant has no real impressions about his environment. More recent understandings consider that the infant is capable of conceptualization and can express…

This book contains a collection of papers that focus on normal infant development, particularly from the standpoint of learning. Written by leading experts from a member of disciplines, these papers deal with topics such as: the examination and observation of infants, including neurological, neuropsychological, and neurobehavioral aspects;…