Distractibility is the propensity to behaviorally react to irrelevant information. Although children are more distractible the younger they are, the precise contribution of attentional and motor components to distractibility and their developmental trajectories have not been characterized yet. We used a new behavioral paradigm to identify the…

Previous research shows that the development of response inhibition and drawing skill are linked. The current research investigated whether this association reflects a more fundamental link between response inhibition and motor control. In Experiment 1, 3- and 4-year-olds (n = 100) were tested on measures of inhibition, fine motor control, and…

This study examines the development of hammering within an ontogenetic and evolutionary framework using motion-capture technology. Twenty-four right-handed toddlers (19-35 months) wore reflective markers while hammering a peg into a peg-board. The study focuses on the motor characteristics that make tool use uniquely human: wrist involvement,…

Studied developmental changes in rhythmic motor skills by observing the hand clapping of 3- through 7-year olds. Found that a variable measuring coordination of children's arms while clapping changed from a nonconstant magnitude in younger clappers to a constant magnitude in older clappers. (BC)

Concern exists that a constellation of negative maternal emotions during pregnancy generates persistent negative consequences for child development. Maternal reports of anxiety, pregnancy-specific and nonspecific stress, and depressive symptoms were collected during mid-pregnancy and at 6 weeks and 24 months after birth in a sample of healthy…

Walkers fall frequently, especially during infancy. Children (15, 21, 27, 33, and 39 month-olds) and adults were tested in a novel foam pit paradigm to examine age-related changes in the relationship between falling and prospective control of locomotion. In trial 1, participants walked and fell into a deformable foam pit marked with distinct…

Used National Maternal and Infant Health Survey data to examine effects of poverty and maternal depression on child development. Found that maternal depression and poverty jeopardized development of very young children. Affluence somewhat buffered the deleterious consequences of depression. Chronic maternal depression had severe implications for…

The relation between cognitive and motor performance was studied in a sample of 378 children aged 5-6. Half of these children had no behavior problems; the others were selected for externalizing (38%) or internalizing problems (12%). Quantitative and qualitative aspects of motor performance were related to several aspects of cognition, after…

These data appear to support the conception that the speech motor system can act as a mediator of other motor systems when speech'' is experimentally manipulated. (Author)

Examined children's developmental trajectories in five domains. Children were assigned to same- or mixed-age child care groups and assessed at 6-month intervals between approximately 32 and 49 months. Children in the two groups differed in their trajectories for communication, cognitive, and motor development but showed similar trajectories for…