Evaluates arguments advanced in favor of special nativism in second-language acquisition (SLA). The article considers the following claims: Universal Grammar (UG) is the null hypothesis; any theory of SLA needs a theory of grammar; and showing that interlanguage grammars are underdetermined by the available input implies that UG must be accessible…

Observed a high rate of congruence between a hypothesized theoretical model of cognitive, motivational, and volitional dimensions of learning and empirical data from 614 college students. Analysis of effects between the model variables reveals some interesting effects with implications for student academic achievement. (SLD)

The main difference between the information-processing and Bialystok's Analysis/Control framework for first and second language learning is in their focus. The latter is equipped mainly to account for performance differences on metalinguistic tasks, while the former accounts for construction and reconstruction of implicit and explicit mental…

By presenting two theories of first and second language learning dichotomously, their fundamental similarity as information-processing theories is obscured and details of both positions are misrepresented. (Author/MSE)

Reviews evidence that children use diverse cognitive strategies; discusses the adaptive value of using diverse strategies; describes models of strategy choice based on rational calculations; and presents an overview of the distributions of associations model of children's strategy choice. (RH)

Two views of clinical problem solving (CPS) are compared. When research on teachers' cognitions was initiated in 1974, the concept of CPS was invoked primarily in terms of diagnosing and treating dysfunction. Presently, educators have reached a different, hierarchical view. This shift brings teaching closer to art and farther from science. (SLD)

The neuronal model shown to code sound-source azimuth in the barn owl by H. Wagner et al. in 1987 is used as the basis for a speculative brain-based human model, which can establish contrastive phonetic categories to solve the problem of perception "non-invariance." (SLD)

This response to Brainerd and Reyna's paper (in this issue) argues that the common resources hypothesis can be applied to a wider range of phenomena than can the output-interference hypothesis. Presents results of a dual-task experiment under bidirectional deficits. Concludes that dual-task studies do not provide critical tests of the resources…

Discussion of instructional theory and the teaching-learning process focuses on implementation of the Structural Learning Theory. Topics discussed include learner models and approaches to intelligent tutoring; control mechanisms in information processing systems; human cognition; assessing individual knowledge; and designing intelligent tutors.…

Outlines a cognitive model of the self-system, detailing the structural representation of self-relevant information in memory and the processes involved in retrieving and utilizing this information. Reports five experiments supporting the model. (MS)

Attempts to model the human production of language under time constraints based on an analysis of hesitation and spontaneous self-repair in a corpus of spoken human dialogs. The model used divides language production into conceptualization of the message to be conveyed, formulation of words and grammatical structure for the message, and…

A study was conducted of differences in processing speed and recall with 61 10th-grade biology students studying a unit on plants and controls who took only the unit tests. Processing speed and recall improved as much for students completing the unit as for controls. (SLD)

Argues that Vygotsky's "zone of proximal development" (ZPD) can be redefined as a nonlinear dynamic model. Presents a mathematical reformulation that generates a variety of developmental patterns and has the capacity to show under which conditions unwanted or unsuccessful developmental paths may occur. Illustrates how this reformulation…

This article describes a training design to help counselor trainees perceive the positive and negative messages in a client's internal dialog. Twenty graduate counselors-in-training produced 2 10-minute interviews with simultaneous feedback from an anticounselor (gives explicit negative messages) and a procounselor (gives explicit positive…

Examines four working steps from an empirical model where an expert abstractor discovers what a paper is about and drafts a topic sentence; a simulation system is developed using this model. Discusses knowledge processing activities of professional summarizing. Results indicate that a small simulation model of professional summarizing is feasible.…