Acquisition of natural language has been shown to fundamentally impact both one's ability to use the first language and the ability to learn subsequent languages later in life. Sign languages offer a unique perspective on this issue because Deaf signers receive access to signed input at varying ages. The majority acquires sign language in (early)…

Background: Although plausible links between language development and personality have been suggested, longitudinal studies of these associations into adulthood have not been conducted. Aim: To investigate whether children's age at attaining language milestones is associated with later adult personality. Methods: Mothers' of 8,400 children from…

Object construction involves organizing multiple objects into a unified structure (e.g., stacking blocks into a tower) and may provide infants with unique spatial information. Because object construction entails placing objects in spatial locations relative to one another, infants can acquire information about spatial relations during construction…

This article reports a study comparing self-concept among 114 immigrant children and adolescents of Ethiopian origin in Israel and among 164 native-born Israelis, including an exploration of how age, gender, and first-language proficiency affect various dimensions of this construct. For the younger children (aged 8-9 years), self-concept was found…

Thirty-five children who had participated in a study of mastery motivation at one year of age were reevaluated at 3.5 years. Findings differed for boys and girls and indicated that a wide range of behaviors in the cognitive-motivational domain must be examined to find developmental continuities. (Author/CB)

Children and adults were asked to place something "in front of" or "behind" a featured or nonfeatured object. Most subjects responded to the object's inherent features. A significant number of adults used the observer orientation cue. Children had more difficulty with the nonfeatured object but also used the observer…

Factor analysis of correlations among the measures of recall clustering, free sorting, and recognition errors revealed significant convergent validity for consistent use of a semantic perceptual organization strategy in the three tasks. Ten-year-old, adult, and elderly adult subjects relied on a semantic strategy; four- and six-year-olds encoded…

Examined whether speech rate is related to the amount recalled and if developmental increases in speech rate allow faster rehearsal with age, and hence, greater recall. Found that the group relationship was clear and replicable but that speech rates of individual children were not good predictors of those children's memory spans; age was found to…

A study of 13 14-month-old and 12 18-month-old children found that the younger infants relied more on gestures and fussing to express their physical wants, whereas the older infants relied more on vocal responses, especially when clarification of their wants was needed. (MDM)