Theory of mind refers to the ability to attribute beliefs to oneself and others. The present study used a dynamic systems approach to assess how environment may affect the development of second-order theory of mind (e.g., "John knows that Mary knows that he went out yesterday"). Theory of mind is divided into two major dimensions:…

Manual dexterity is known to gradually progress with developmental age. In this study, we evaluate the performance of unimanual and bimanual actions under perturbed and unperturbed conditions in children between 4 and 10 years of age. Behavior was assessed by means of trajectory measurements and degree of bimanual coupling. The results showed that…

Background: Previous research on the etiology of ADHD symptoms suggests that neuropsychological differences may be present as early as birth; however, the diagnosis is typically not given until school age. This study aimed to (a) identify early behavioral and cognitive markers of later significant parent and/or teacher ratings of ADHD…

Multiple levels of category inclusiveness in 4 object domains (animals, vehicles, fruit, and furniture) were examined using a sequential touching procedure and assessed in both individual and group analyses in eighty 12-, 18-, 24-, and 30-month-olds. The roles of stimulus discriminability and child motor development, fatigue, and actions were also…

Findings are interpreted in terms of search strategy and memory. (Authors)

Incomplete intersensory integration development in schizophrenic children appears to be an underlying source of symptom expression and formation which usually fails to improve with age. (SB)

Partial replication of the Luria and Tikhomirov experiments in the verbal regulation of behavior has led to results and conclusions contradictory to those of the Russian researchers. Subjects for these experiments included mentally handicapped children and adults. The results of four sets of experiments are presented. In general, the basic…

Whereas a wealth of research has examined cognitive abilities of groups of individuals with mild mental retardation (MMR), less research has investigated potential differences in cognitive performance among individuals with mental retardation (Baumeister, 1997). The present study was an exploratory analysis of variability in performance of…

The functional play of children with autism (n=15) was compared to that of developmentally matched children with Down syndrome (n=15) and typical infants (n=15). The functional play of the children with autism was less elaborated, less varied, and less integrated than that of the controls. (Contains references.) (Author/CR)

Investigated the role of behavioral style and cognitive performance as predictors of cognitive development in extremely low-birth-weight children assessed at age 2 and again at age 4. Found stability of cognitive performance from 2 to 4 years of age; this as well as behavior style and orientation-engagement predicted subsequent cognitive…

Appraises the respective contribution of initial competence and of imitation of modeled response in the observational learning of conservation among first grade children. (HOD)

We examined the relationship between parents' behaviour and children's use of simple arithmetic strategies while playing a board game in contrast to solving arithmetic problems. In a microgenetic study spanning 3 weeks, 5-year-old children who were just beginning kindergarten played a modified game of "Chutes and Ladders" with one of…

Examines the implications of temporal separation for children's developmental differences in inferences drawn about an individual's characteristics after observing multiple instances of that individual's behavior. Also tests two competing hypotheses about how young children process information separated in time. (HOD)

The subject of language learning of children in bilingual families is considered in this paper. The author discusses practical problems and provides examples from his own family situation in which his children learned French, English, and German. The possibility of language mixture is discussed and the author presents some tentative conclusions…

An approach to the diagnosis of pervasive developmental disorders is presented that considers the difficulties in relationships and communication secondary to sensory and motor processing deficits. These difficulties are conceptualized as Multisystem Developmental Disorder (MSDD), and case vignettes illustrate typical patterns of MSDD and…