Comments on a study by Schacter and others which proposes that insights into why infants make the AB error can be gained by examining the errors of brain-damaged adults on similar tasks. (The B in AB has a line over it in the title and in the article meaning "A not B.") (PCB)

This study investigates the responses of 84 children, aged 6 years 3 months to 7 years 5 months, to questions dealing with the categories of physical causality and 2 causal demonstrations. (WY)

The ability of 1- to 3-year-olds to conceptually interrelate objects was studied among eight children each at 12, 18, 24, 30, and 36 months who were given seven free classification tasks containing a scrambled array of eight objects from two classes. Spontaneous manipulations of the subjects were analyzed. (Author/RH)

In 2 studies mothers read wordless storybooks to their preschool-aged children; narratives were analyzed for mental state language. Children's theory-of-mind understanding (ToM) was concurrently assessed. In Study 1, children's (N=30; M age 3 years 9 months) ToM task performance was significantly correlated with mothers' explanatory, causal, and…

Despite the prevalence of bilingualism, language acquisition research has focused on monolingual infants. Monolinguals cannot learn minimally different words (e.g., "bih" and "dih") in a laboratory task until 17 months of age ( J. F. Werker, C. T. Fennell, K. M. Corcoran, & C. L. Stager, 2002). This study was extended to 14- to 20-month-old…

Previous research suggests that model competence does not emerge until relatively late in infancy (20-26 months). Development was systematically analyzed within 3 key areas--count noun learning, dual representation, and categorization--hypothesized to support the emergence of model competence in the second year. In an object-handling preferential…

Four experiments examined the development of negative priming (NP) in 3-5-year-old children using as a measure of children's executive function (EF) the dimensional change card sort (DCCS) task. In the NP version of the DCCS, the values of the sorting dimension that is relevant during the preswitch phase are removed during the postswitch phase.…

Piaget's notion that children's theoretical moral thought would evidence greater usage of intentionality toward self-oriented as opposed to other-oriented hypothetical situations was tested in 60 kindergartners and 60 first graders. (Author/JMB)

Kail responds to Stigler and others' criticisms of Kail's 1986 article and maintains that their criticisms are incorrect or implausible. He agrees with their conclusion that theories of cognitive development must include both domain-specific and general processes. (RJC)

Adults use both first-order, or categorical, relations among features (e.g., the nose is above the mouth), and second-order, or fine spatial relations (e.g., the space between eyes), to process faces. Adults' expertise in face processing is thought to be based on the use of second-order relations. In the current study, 5-month-olds detected…

Although dissociations in children's responses are sometimes about "getting it right" for an experimenter, they might also often reflect differences between conscious and subconscious processing that are not geared to correct performance. Research with adults also reveals many cases of dissociation, and adults can more easily be subjected to…

Tested the model which posits that heart-rate deceleration and respiratory sinus arrhythmia are indices of infant attention. Infants studied cross-sectionally at 14, 20, and 26 weeks of age were presented with complex patterns on a TV screen which were accompanied by an "interrupting stumulus". (Author/BN)

Investigated two- to four-year-old children's sensitivity to perceptual and normative standards of comparison and their responses when standards conflict. Even the youngest children were capable of using normative and perceptual standards and could apply different standards of comparison when judging size. (RJC)

Perceptual and categorical similarity were varied independently in a concept-matching task administered to young children. Perceptual similarity proved to be the primary determinant of difficulty level. Superordinate and basic matches were equally difficult. When perceptual resemblance was minimal, most children were unable to recognize matches at…