Finds support for the global trend hypothesis which posits that cognitive processing speed changes as a function of age and all component processes change at the same rate. (PCB)

To characterize cognitive maturation through adolescence, processing speed, voluntary response suppression, and spatial working memory were measured in 8- to 30-year-old (N=245) healthy participants using oculomotor tasks. Development progressed with a steep initial improvement in performance followed by stabilization in adolescence. Adult-level…

Interviewed 5-, 6-, 7-, 8-, and 10-year olds, and adults regarding their knowledge about primary-consciousness, reflective-consciousness, and control activities. Found that the recognition that people do not engage in conscious mental activities when unconscious is still developing during the late middle-childhood years. (Author/KB)

Four experiments studied effects of difficulty of word identification on optional conceptual processing by second, third, and fifth graders, and college students in a cued recall task. Results indicated that contrastive processing facilitates recall, and that difficulty of word identification may limit the extent of optional contrastive…

Results suggest that gender schematization exerts an important influence in early sex-role development and illustrate the utility of a gender schematic approach to early sex-typing phenomena. (RH)

Two experiments used Visual Expectations Procedure to investigate development of expectations in infants up to 12 months old. Reaction time improved and the percentage of anticipations increased between 6 and 9 months using an alternation pattern or a complex pivot pattern, and between 4 and 8 months when using a left-right alternation or a…

Argues that the operating characteristics of perceiving and remembering provide a foundation for progress on detailing the processes through which knowledge is realized in real-time tasks and in detailing the processes of developmental change. Includes three examples to illustrate how forming developmental hypotheses in terms of perceiving and…

Examined 5- to 12-year-olds' judgment regarding the behavior of balance scales and other levers whose arms varied in a causal or a noncausal variable. Results indicated age-related increases in correct judgments about the influence of physical features of objects at an earlier age than about spatial relations between objects. (MOK)

Calls for a process-oriented approach to study of categorization in infancy. Maintains that further understanding of infant categorization and its changes with development requires a more direct assessment of infants' category formation. Argues that two research directions will enhance understanding of categorization: (1) contextual variations on…