Objective: Changes in reward-related behavior are an important component of normal adolescent affective development. Understanding the neural underpinnings of these normative changes creates a foundation for investigating adolescence as a period of vulnerability to affective disorders, substance use disorders, and health problems. Studies of…

Numerous studies have proposed that changes of the human language faculty caused by neural maturation can explain the substantial differences in ultimate attainment of grammatical competences between first language (L1) acquirers and second language (L2) learners. However, little evidence on the effect of neural maturation on the attainment of…

In this paper behavior during the teaching-learning process is modeled by means of a fuzzy cognitive map. The elements used to model such behavior are part of a generic didactic model, which emphasizes the use of cognitive and operative strategies as part of the student-tutor interaction. Examples of possible initial scenarios for the…

Background: It has been suggested that children with intellectual disabilities (ID) have motor problems and higher-order cognitive deficits. The aim of this study was to examine the motor skills and executive functions in school-age children with borderline and mild ID. The second aim was to investigate the relationship between the two performance…

In the past decade there has been a marked push for the development of employability skills to be part of the PhD process. This push is generally by stakeholders from above and outside the PhD process, i.e. government and industry, who view skills as a "summative product" of the PhD. In contrast, our study interviewed stakeholders inside…

Transgenerational effects of alcohol on mothers' and children's intellectual functioning has been examined in 22 families from very deprived environments. Their psychosocial outcomes and IQ level were evaluated in a follow-up study on average seven years after they left the support group of a day-care centre for young children; school data were…

On any given day, hundreds of thousands of individuals, groups, and families visit libraries, parks, zoos, museums, and arboretums. Although quite diverse in their holdings, these places are linked together as institutions that focus on collecting, preserving, and/or presenting a body of knowledge (e.g., manuscripts, artifacts, documents, animals,…

This study examined how literal symbols affect students' understanding of algebraic expressions. Middle school students (N = 322) were randomly assigned to 1 of 3 conditions in which they were asked to interpret an expression (e.g., 4c + 3b) in a story problem. Each literal symbol represented the price of an item. In the c-and-b condition, the…

In spite of numerous HIV/AIDS-prevention education efforts, the HIV infection rates in sub-Saharan Africa remain high. Exploring and understanding the reasons behind these infection rates is imperative in a bid to offer life skills and moral education that address the root causes of the pandemic. In a recent study concerning effective…

Two generations ago, Latino children and families were often defined as disadvantaged, even "culturally deprived," by psychologists, social scientists, and pediatric researchers. Since then, empirical work from several disciplines has yielded remarkable discoveries regarding the strengths of Latino families and resulting benefits for children.…

We examined free recall and metacognitive judgments of ambiguous sentences studied with and without clues to facilitate their comprehension. Sentences were either studied without clues, with clues meaningfully embedded, or with clues following a 10-s interval delay. After presentation, subjects made judgments of comprehension (JCOMPs) or judgments…

Two-year-old children's reasoning about the relation between their own and others' preferences was investigated across two studies. In Experiment 1, children first observed 2 actors display their individual preferences for various toys. Children were then asked to make inferences about new, visually inaccessible toys and books that were described…

There is strong evidence to suggest that individuals with autism show atypicalities in multiple cognitive domains, including theory of mind (ToM), executive function (EF), and central coherence (CC). In this study, the longitudinal relationships among these 3 aspects of cognition in autism were investigated. Thirty-seven cognitively able children…

Two experiments investigated the development of fluency in interpreting adjective-noun phrases in 30- and 36-month-old English-learning children. Using online processing measures, children's gaze patterns were monitored as they heard the familiar adjective-noun phrases (e.g. "blue car") in visual contexts where the adjective was either informative…

Labeling image collections is a tedious task, especially when multiple labels have to be chosen for each image. On the other hand, the explosion of Internet content has provided cheap access to almost unlimited amounts of data, albeit with a lower quality of annotations. In this dissertation we introduce a new framework that extends…