Recent debates over adults' theory of mind use have been fueled by surprising failures of perspective-taking in communication, suggesting that perspective-taking may be relatively effortful. Yet adults routinely engage in effortful processes when needed. How, then, should speakers and listeners allocate their resources to achieve successful…

One of the major questions in psychology is whether associative and nonassociative learning are fundamentally different or whether they involve similar processes and mechanisms. We have addressed this question by comparing mechanisms of a nonassociative form of learning, sensitization, and an associative form of learning, classical conditioning of…

Most studies of molecular mechanisms of synaptic plasticity have focused on the sequence of changes either at individual synapses or in the cell nucleus. However, studies of long-term facilitation at "Aplysia" sensory neuron--motor neuron synapses in isolated cell culture suggest two additional features of facilitation. First, that there…

The language we use over the course of conversation changes as we establish common ground and learn what our partner finds meaningful. Here we draw upon recent advances in natural language processing to provide a finer-grained characterization of the dynamics of this learning process. We release an open corpus (>15,000 utterances) of extended…

Recent studies in "Aplysia" have identified a new variation of synaptic plasticity in which modulatory transmitters enhance spontaneous release of glutamate, which then acts on postsynaptic receptors to recruit mechanisms of intermediate- and long-term plasticity. In this review I suggest the hypothesis that similar plasticity occurs in…

Long-term but not short-term memory and synaptic plasticity in many brain areas require neurotrophin signaling, transcription, and epigenetic mechanisms including DNA methylation. However, it has been difficult to relate these cellular mechanisms directly to behavior because of the immense complexity of the mammalian brain. To address that…

Whereas short-term plasticity involves covalent modifications that are generally restricted to either presynaptic or postsynaptic structures, long-term plasticity involves the growth of new synapses, which by its nature involves both pre- and postsynaptic alterations. In addition, an intermediate-term stage of plasticity has been identified that…

This article describes the use of problem-based learning to teach students about the scope and consequences of urban poverty through an innovative cross-curricular project. We illustrate the process, goals, and tasks of the Community Assessment Project, which incorporates community-level assessment, collection and analysis of public data, and…

Science, Technology and Innovation in Uganda is part of the World Bank Studies series. These papers are published to communicate the results of the Bank's ongoing research and to stimulate public discussion. This study presents a unique methodology to view science, technology and innovation (STI) in developing countries. The study provides a set…

This article investigates how adult Korean-speaking learners of English interpret English definite descriptions ("the book," "the books") and demonstrative descriptions ("that book," "those books"). Korean lacks articles, but has demonstratives, and it is hypothesized that transfer leads learners to (initially) equate definites with…

Describes the World Links for Development (WorLD) program, a World Bank effort to bring the Internet to 40 developing countries to connect 1500 secondary schools for collaborative project-based learning. Discusses the World Bank's role in development; program objectives, focus of training, financing, and goals; and lessons learned. (PEN)

Dishabituation has been thought to be due either to reversal of the process of habituation or to a second process equivalent to sensitization superimposed on habituation. One way to address this question is by testing whether dishabituation and sensitization can be dissociated. Previous studies using this approach in "Aplysia" have come to…

Introduces a special issue on the advantages of conducting "Level 1 research," a method of service-delivery accountability which involves systematically monitoring clinical outcomes without attempting to scientifically prove what is causing those effects. This type of research is compared with both Level 3 research (scientific research) and Level…

The Indian Education Legal Support Project emphasizes the legal rights of tribes to control the formal education of their members. The project's work includes developing tribal education laws and reforming state and national Indian education legislation. This document examines federal and state statutory provisions on tribal education departments…

Three focus groups examined stress and conflict among 30 older African American women in Boston. Stress stemmed from worries about functional disability, accessing transportation, conflicts with family and peers, and grandchildren's lack of respect. Participants tended to use avoidant strategies to deal with stress and conflict. A training program…