This study examined the development of executive function (EF) in a typically developing sample from middle childhood to adolescence using a range of tasks varying in affective significance. A total of 102 participants between 8 and 15 years of age completed the Iowa Gambling Task, the Color Word Stroop, a Delay Discounting task, and a Digit Span…

A longitudinal study of 31 babies in their twelfth through twenty-third weeks of age tested the Neo-Piagetian theory of a shift or spurt in infants' cognitive development at the age of 4 months. Results were consistent with this neo-Piagetian concept of stage change. (MDM)

To resolve tension between general stages and conceptual specificity in neo-Piagetian theory, R. Case introduced the idea of central conceptual structures. To resolve difficulties of separating developmental level and conceptual diversity, this article reconceptualizes central conceptual structures as self-organizing systems that stabilize in…

Investigates the relationship between early interactional patterns and later cognitive performance in 29 infant-mother pairs. Results indicate that cognitive milestones are relatively uniform in the first two years of life. Socio-emotional development showed a variety of profiles. (RJC)