Elizabeth A. Hennon

Social Risk and Protective Child, Parenting, and Child Care Factors in Early Elementary School Years

Objective. African American children exposed to multiple social risk factors during early childhood often experience academic difficulties, so identification of protective factors is important. Design. Academic and school behavior trajectories from kindergarten through third grade were studied among 75 African American children who have been followed prospectively since infancy to test hypothesized protective factors: quality of home and child care environments during early childhood, child language and social skills at entry to kindergarten, and school characteristics. Results. Children exposed to multiple risks in early childhood showed lower levels of academic and social-emotional skills from kindergarten through third grade. Parenting mediated the association with risk. Childrens language skills, parenting, and child care quality serve as protective factors in acquisition of mathematics skills and reduction in problem behaviors during the first 4 years of primary school for African American children facing multiple risks. Attending a school with a higher proportion of children from low-income families might predict increasing numbers of problem behaviors over time. Conclusions. Exposure to social risk in early childhood negatively predicted academic achievement and adjustment during early elementary school for African American children, in part through associations between exposure to social risk and less responsive and stimulating parenting. Furthermore, the negative associations between risk and academic outcomes were substantially weaker when children had more responsive and sensitive parents or child care providers or entered school with stronger language skills.

Young Children Can Extend Motion Verbs to Point-Light Displays

In the first study using point-light displays (lights corresponding to the joints of the human body) to examine childrens understanding of verbs, 3-year-olds were tested to see if they could perceive familiar actions that corresponded to motion verbs (e.g., walking). Experiment 1 showed that children could extend familiar motion verbs (e.g., walking and dancing) to videotaped point-light actions shown in the intermodal preferential looking paradigm. Children watched the action that matched the requested verb significantly more than they watched the action that did not match the verb. In Experiment 2, the findings of Experiment 1 were validated by having children spontaneously produce verbs for these actions. The use of point-light displays may illuminate the factors that contribute to verb learning.

Expressive language during conversational speech in boys with fragile X syndrome

We compared the expressive syntax and vocabulary skills of 35 boys with fragile X syndrome and 27 younger typically developing boys who were at similar nonverbal mental levels. During a conversational speech sample, the boys with fragile X syndrome used shorter, less complex utterances and produced fewer different words than did the typically developing boys after controlling for their nonverbal MA, speech intelligibility, and mothers education. The boys with fragile X used less complex noun phrases, verb phrases, and sentence structure, but did not use fewer questions and negations. These findings suggest that the language difficulties in boys with fragile X reflect an overall expressive language delay and not a specific syntactic or vocabulary delay.

Social attention need not equal social intention: From attention to intention in early word learning

Blooms eloquent and comprehensive treatment of early word learning holds that social intention is foundational for language development. While we generally support his thesis, we call into question two of his proposals: (1) that attention to social information in the environment implies social intent, and (2) that infants are sensitive to social intent at the very beginnings of word learning.