Details meta-analysis of 58 intervention studies related to higher-order processing (i.e., problem solving) for adolescents with learning disabilities. Discusses factors that increased effect sizes: (1) measures of metacognition and text understanding; (2) instruction including advanced organizers, new skills, and extended practice; and (3)…

Argues for an informational processing explanation for young infants' ability to use featural cues to differentiate objects, centering on the development of infants' ability to integrate both featural and object information. Considers information processing propositions and evidence on object segregation. (JPB)

Discusses connections between infants' use of object knowledge in recognition to computational, psychophysical, and neurophysiological research on adult perceptual segmentation and grouping. Considers these connections through a framework of the tasks and information involved in adult object segregation, and interprets Needham's results in this…

Tested in three experiments hypothesis that coordinating saying number-words and pointing to each object to count requires use of the central executive and that cost of coordination decreases with age. Found that for 5- and 9-year-olds and adults, manipulating difficulty of each component affected counting performance but did not make coordination…

Subjects with autism (n=36) were assigned a simple "reach, grasp, and place" task. Comparison with nonautistic children who had mental retardation and younger normally developing children found that the autistic subjects had problems in executing goal-directed motor acts even in very simple situations, suggesting an independent and marked…

Examined the effect of functional values of stimuli on orienting response elicitation. Subjects were 50 4-month-old infants and were randomly assigned to 1 of 3 experimental conditions. Results suggested the importance of taking into account the functional value of stimuli when analyzing infant attention. (MOK)

This study investigated the relationship of 3-year olds' reliance on desire when predicting behavior and their performance on false-belief tasks. Results suggested that young children may use the desires of the agent, rather than their own desires, to predict behavior in standard false-belief paradigms. Older preschoolers also have difficulty…

Three experiments investigated the developmental progression of reliance on object function versus object shape to extend novel words among 3- and 5-year olds and adults. Findings indicated that children focused on shape, whereas adults focused on function when extending novel words, suggesting a developmental change in the consideration of these…

Mental state language was examined in Mandarin- speaking and Cantonese-speaking toddlers. Results suggested that theory-of-mind development was similar to that in English, with early use of desire terms followed by other mental state references. Much earlier emergence of desire terms and infrequent use of thinking terms suggests cultural…

This study examined the effect of exemplar typicality on reaction time and accuracy of categorization. High-functioning children (age 9-12), adolescents (age 13-16), and adults with autism (age 17-48) and matched controls were tested in a category verification procedure. All groups showed improved processing throughout the lifespan for typical and…

Although everybody agrees that education reform is needed, there is little agreement on the nature of the problems, and certainly not on the remedies; nevertheless, there is a central focus on curriculum issues. Three principal points are addressed in this paper: (a) new approaches in education are urgently needed, (b) new educational approaches…

This study investigated how 4- to 7-year-old children's second-order belief attribution might be facilitated by either reducing information processing or varying the sequence of task questions. In Experiment 1, compared with Perner and Wimmer's (1985) original second-order false-belief task, a new task with reduced information-processing demands…

Syntactic knowledge is widely held to be partially innate, rather than learned. In a classic example, it is sometimes argued that children know the proper use of anaphoric "one," although that knowledge could not have been learned from experience. Lidz et al. [Lidz, J., Waxman, S., & Freedman, J. (2003). What infants know about syntax but couldn't…

Children are nearly as sensitive as adults to some cues to facial identity (e.g., differences in the shape of internal features and the external contour), but children are much less sensitive to small differences in the spacing of facial features. To identify factors that contribute to this pattern, we compared 8-year-olds' sensitivity to spacing…

Switching between tasks produces decreases in performance as compared to repeating the same task. Asymmetrical switch costs occur when switching between two tasks of unequal difficulty. This asymmetry occurs because the cost is greater when switching to the less difficult task than when switching to the more difficult task. Various theories about…