This study investigated the hypothesis that as children become older they are increasingly likely to make efficient use of accessible retrieval cues. Results confirmed the hypothesis. (ST)

Age and condition (either constancy-relevant or variability-relevant) interact, with the youngest group in the constancy-relevant condition performing most poorly on concept identification tasks. (MH)

Study supported through a U. S. Public Health Service Fellowship award to Ludwig Immergluck for his work at the Harvard Florence Research Project in Florence, Italy. (AP)

Investigates preperceptual auditory storage among eight 9-week-old infants in three experiments using a modification of an adult masking paradigm and a nonnutritive sucking discrimination procedure. Results suggest that echoic storage contributes to auditory perception in infancy and, for infants compared to adults, echoic traces have a longer…

This research reexamined the hypothesis that recognition is a developmentally stable component of the memory system. Recognition performance was compared across age groups. Particular attention was paid to the role of response biases and perceptual skills in developmental increases in recognition performance. (Author/DB)

Observation indicated that children most frequently represent objects by performing actions appropriate to the represented objects. With increasing age, children represent objects without using functional actions and with objects bearing little physical similarity to the represented objects. (Author/DB)

In this experiment, 446 children, ranging in age from 5-10 years, were required to draw one object behind another in a situation in which adults invariably produce the further object partially occluded to the nearer. (MS)

Investigated the relative effects of developmental level and domain-specific knowledge on 4- to 9-year-olds' ability to identify and make similarity decisions about objects based on haptic or tactile information. Found that older children explored models more exhaustively, found more differentiating features, and made fewer errors than younger…

Data from this study of skilled and unskilled badminton players aged 10 to adult indicated the presence of systematic differences which transcend developmental age between the perceptual skills of expert and novice players. (JD)

Examined children's social comparisons in conversational stories of past personal experiences as they related to development of concept of self. Found that comparisons of self with others increased with age. The 2-1/2-year olds used comparisons to convey similarities between self and others, whereas the 5-year-old subjects used social comparison…

Assessed 13- and 20-week-olds infants' discrimination between shearing stimuli, in which columns of dots move vertically on a screen at different velocities, and foil stimuli, in which all dots move at the same velocity. Results revealed the threshold levels of dot velocity in shearing stimuli at which discrimination occurred. (BC)

Two experiments found that (1) by age 8 months infants perceived that leaning extends their effective reaching space to grasp objects; (2) by 10 months they perceived the effective limits of leaning and reaching; and (3) by 12 months they began to perceive how this space may be extended by a mechanical aid. (MDM)

This study evaluated the ability of 30 normally developing children (ages 6-12) to report the perceived location of a stationary fused auditory image (FAI) or track a "moving" FAI. Although subjects performed at normal adult levels with the stationary sound measure, they exhibited a significant age-related trend with the moving sound…

Maintains that Madole and Oakes' hypotheses are incorrect. Shows that conceptual development frequently goes from the abstract to the concrete and that extensive literature shows that there is more than one kind of categorization. Discusses ways in which perceptual and conceptual categorization differ. (Author/KB)