This experiment used a modified go/no-go paradigm to investigate the processes by which response inhibition becomes more efficient during mid-childhood. The novel task, which measured trials on which a response was initiated but not completed, was sensitive to developmental changes in response inhibition. The effect of inducing time pressure by…

Some peculiar properties of children's passives have long been observed in various languages such as an asymmetry between actional passives and nonactional passives. These peculiarities have been accounted for under the hypothesis that children's early passives are adjectival, and as such exhibit properties of adjectival passives in adult grammar.…

Listeners can explicitly categorize unfamiliar talkers by regional dialect with above-chance performance under ideal listening conditions. However, the extent to which this important source of variation affects speech processing is largely unknown. In a series of four experiments, we examined the effects of dialect variation on speech…

The Impossible Figures Task (IFT-28), which consisted of 28 possible and impossible figures assembled for brief exposure and recognition, was completed by 297 Hong Kong Chinese gifted students. Expert judges (N = 2) rated these students' drawing abilities based on their performance on 2 drawing tasks adapted from Clark's Drawing Abilities Test…

An experiment testing adult Polish speakers' ability to supply dative forms of unfamiliar nouns revealed strong effects of type frequency (performance was better on inflections that apply to large classes) and neighbourhood density (participants were more likely to supply the target inflection with nonce nouns belonging to densely populated…

The relative importance of mental effort, as indicated by strategy use, and persistence as potential mediators of the memory self-efficacy (MSE)/memory performance relationship was investigated within a sample of 26 adults aged 65 years and older. It was found that persistence but not strategy use was predictive of performance on a free-recall…

Cognition in schizophrenia seems to be characterized by impaired performance on most tests of explicit or declarative learning contrasting with relatively intact performance on most tests of implicit or procedural learning. At the same time there have been conflicting results for studies that have used the Serial Reaction Time (SRT) task to…

This study concerned the role of gestures that accompany discourse in deep learning processes. We assumed that co-speech gestures favor the construction of a complete mental representation of the discourse content, and we tested the predictions that a discourse accompanied by gestures, as compared with a discourse not accompanied by gestures,…

Although supplemental reading services are meant to improve reading achievement of struggling readers and students with reading disabilities, without concerted effort to ensure communication and coordination with in-school instruction, they may fall short of their desired mark. To promote learning, it is critical that any services provided outside…

A longitudinal study and a training study were conducted to show that simply referring to others facilitated theory of mind (ToM) development in Chinese children. In Study 1, 3- to 4-year-old Chinese children (N = 52) were tested on ToM and autobiographical memory (AM). One year later, in the group of children who initially failed the false belief…

Five experiments explored the effects of immediate repetition priming on episodic recognition (the "Jacoby-Whitehouse effect") as measured with forced-choice testing. These experiments confirmed key predictions of a model adapted from D. E. Huber and R. C. O'Reilly's (2003) dynamic neural network of perception. In this model, short prime durations…

This study investigated the relations among preschool children's ability to understand that other people see things differently than they do, that other people can believe things differently than the children know to be true, and that they can manipulate others' beliefs through intentional lying. Children between the ages of 3 and 5 were given…

Previous functional magnetic resonance imaging (fMRI) studies investigating hemispheric dominance for language have shown that hemispheric specialization increases with age. We employed magnetoencephalography (MEG) to investigate these effects as a function of normal development. In sum, 22 healthy children aged 7-16 years were investigated using…

This article reports 2 experiments using a new method to study 18- to 24-month-olds' visual experiences as they interact with objects. Experiment 1 presents evidence on the coupling of head and eye movements and thus the validity of the head camera view of the infant's visual field in the geometry of the task context. Experiment 2 demonstrates the…

Two studies, an experimental category learning task and a computational simulation, examined how sequencing training instances to maximize comparison and memory affects category learning. In Study 1, 2-year-old children learned color categories with three training conditions that varied in how categories were distributed throughout training and…