The cognitive underpinnings of arithmetic calculation in children are noted to involve working memory; however, cognitive processes related to arithmetic calculation and working memory suggest that this relationship is more complex than stated previously. The purpose of this investigation was to examine the relative contributions of processing…

Infants five and seven months of age participated in two studies in which two filmed facial expressions were presented with a single vocal expression characteristic of one of the facial expressions. Seven- , but not five-month-olds, increased their fixation to a facial expression when it was sound-specified. Preferences for a particular expression…

Four experiments investigated three- and four-year-old children's knowledge of projective size-distance and projective shape-orientation relationships. Results indicated that preschool children's understanding of these relationships seems at least partly cognitive rather than wholly perceptive, providing further evidence for the acquisition of…

A sharp improvement in children's understanding of the role of visual perception and linguistic communication in knowledge functions was found between the ages of three and five years. (PCB)

Examines development of processing speed in three backward masking studies, where presentation of second stimulus figure (mask) within a critical time interval from arrival of first figure (target) interrupts processing of first. Results indicate that processing time increases until early adolescence; changes are less marked after 13 years of age.…

Earlier research (Thorson, et al., 1976) found that latencies increase for acoustically confusable letter pairs and decrease for visually confusable letter pairs as a positive function of interstimulus interval (ISI). To extend these findings to different age groups, 30 young adults (mean age, 21.4 years) and 30 older adults (mean age, 68.8 years)…

This study compared visual attention in 18 prelingually deaf children (half with cochlear implants and half with hearing aids) and 10 normal hearing children. Unlike previous studies, children in all three groups performed similarly on a continuous-performance visual attention task and on a letter cancellation task. Only age and nonverbal…

Describes two studies that demonstrate young children's perception of color materials differs from that of adults in two ways: (1) the stimulus dimensions of hue, chroma, and value appear to result in somewhat more separable perception for young children than for adults, and (2) the perceived similarities the color materials are not the same for…

Applies the analytic technique of maximum likelihood factor analysis to the intercorrelations of the Wechsler Intelligence Scale for Children-Revised's subtests as a means for assessing more or less differentiation and integration. (HOD)

The effects of age, task, and egocentric responding on visual-spatial perspective taking were studied among 41 preschool children between 3.0 and 5.9 years of age. Children were individually administered three perspective-taking measures: the upside-down/right-side-up task, a block task, and a picture box task, all previously described in the…

A developmental study investigated the pictorial and linguistic main idea identification skills of 104 students in second, fifth, and eighth grades. In the pictorial task, the subjects studied a complete picture story and ranked the effectiveness of four separate main idea alternatives at capturing the meaning of the story. Following the same…

Visual fixations were recorded in newborn, 4-, and 8-week-old human infants as they scanned displays that varied in contour length, size, number, and a new metric, CVAL (based on Contour Variability, Amount and Location). One of the findings was that both contour length and CVAL separately accounted for approximatel1 95 of looking-duration…

Describes study of children in grades one, three, and five that examined their active processing and short term memory (STM) of color, contour, and interior pattern of shapes found in computer digitized pictures. Age-related differences are examined, and the role of processing visual information in the learning process is discussed. (12…

The percent and characteristics of children who produced invalid profiles on two different continuous performance tests (CPTs) tasks were examined. Sixty-one children referred for attention deficit hyperactivity disorder (ADHD) assessment and 24 non-clinical control children (all children ages 5-16) were given the Test of Variables of Attention…

Analyzes the research strategies, stimuli, subjects, statistical strategies, and relative variables in 34 empirical studies on children's representation of three-dimensional objects. The studies fell into three categories: children's representation of spatial relationships within an object, between two objects, and studies that included both. (MJP)