This paper provides a critical examination of the current state and future possibility of formal cognitive theory for insight problem solving and its associated "aha!" experience. Insight problems are contrasted with move problems, which have been formally defined and studied extensively by cognitive psychologists since the pioneering…

Early and intensive behavioral intervention (EIBI) has been established as an effective treatment for autism. However, the complexity and intensity of EIBI programs make it difficult to fully report all critical aspects of the independent variable. Consequently, scientific reports of EIBI outcomes have been criticized for providing less than…

Indicates that Kemler raises a number of important issues needing resolution before the understanding of infant categorization is complete, but claims Kemler misunderstands both the goals of the Husaim and Cohen experiment and the extent to which the goals were met. (Author/RH)

Questions Husaim and Cohen's basic assumption that stimulus dimensions or attributes defined by the experimenter have psychological reality for infant subjects. Suggests that infants may perceive different attributes in the stimulus, or they may not articulate the stimulus into attributes at all. (Author/RH)

Both the directions and the directions plus reinforcement groups increased subjects' time on the task during the experimental phases. When extrinsic reinforcement and directions were removed, they maintained intrinsically motivated behaviors at levels significantly above levels observed during the baseline phase and significantly higher than the…

Argues that although Lane and Pearson ("Merrill-Palmer Quarterly," v28, n3, p317-37, 1982) provide an important review, critique, and attempt at integration across paradigms used to study the development of attention, a number of genuine problems still remain to be addressed in this area. (MP)

Ratcliff (1985) simulated data from three letter-matching experiments with his diffusion model. The necessity of including a comparison criterion is consistent with the conclusion of Proctor, Rao, and Hurst (1984) that bias of response criteria, alone, is insufficient to generate the fast-same phenomenon. (Author/LMO)

A popular theoretical account of developmental language and literacy disorders implicates poor auditory temporal processing in their etiology, but evidence from studies using behavioral measures has yielded inconsistent results. The mismatch negativity (MMN) component of the auditory event-related potential has been recommended as an alternative,…

Experimental studies are reviewed in which stuttering and speech disfluency were subjected to response contingent stimuli (RCS). Research issues are discussed, including response-stimulus contiguity, subject awareness, behavior definitions, stimulus control of responses, subject variability, effects of RCS on nonstuttered speech parameters,…

Using a simple change detection task involving vertical and horizontal stimuli, I. M. Thornton and D. Fernandez-Duque (2000) showed that the implicit detection of a change in the orientation of an item influences performance in a subsequent orientation judgment task. However, S. R. Mitroff, D. J. Simons, and S. L. Franconeri (2002) were not able…

Speedback is a continuous audience response technology system that was used to test concepts and variable relationships that had been derived earlier from large-sample, survey research methodology. Continuous audience response technologies used computer hardware and customized software to collect subjects' reactions to stimuli, usually videotaped…

This paper discusses a longitudinal, exploratory study of developmental dimensions related to object permanence theory and explains how multidimensional scaling techniques can be used to identify developmental dimensions. Eighty infants, randomly assigned to one of four experimental groups and one of four counterbalanced orders of stimuli, were…

Background: Debates about the developmental origins of adult face processing could be directly addressed if a clear infant neural marker could be identified. Previous research with infants remains open to criticism regarding the control stimuli employed. Methods: We recorded ERPs from adults and 3-month-old infants while they watched faces and…