It is well known that mental state verbs are difficult to acquire, but little is known about the acquisition of mental state language encoded through intonation. Puerto Rican Spanish (PRS) has at least three intonation contours available for marking polar questions (PQs): ¡H*L% marks an utterance as a PQ; H+L*L%, in addition to doing the former,…

Purpose: The author presents a view of research in speech motor control over the past 5 decades, as observed from within Ken Stevens's Speech Communication Group (SCG) in the Research Laboratory of Electronics at MIT. Method: The author presents a limited overview of some important developments and discoveries. The perspective is based…

This study investigates the effect of familiar musical distractors on the cognitive performance of introverts and extraverts. Participants completed a verbal, numerical and logic test in three music conditions: vocal music, instrumental music and silence. It was predicted that introverts would perform worse with vocal music, better with…

This paper sits within the research on the affordances of new technologies in the mathematics classroom and focuses on a specific feature that is available in dynamic geometry environments, i.e. measuring tools, within the context of conjecturing and proving in open geometry problems. We develop a classification of different modalities of…

This paper criticizes the Yeany, Yap, and Padilla paper (1986). Questions the internal consistency about hierarchical relationships of integrated processes and cognitive reasoning concerning procedures used for the generation of subhierarchies, instrumentation used to assess the process skills, and rigor of lexicon. (YP)

Explains that Rogers' proposed sequence of development in proportional reasoning is not really a modification of Inhelder and Piaget's task, but could be considered as a new task. Rogers acknowledged the explanation as a valid one. (GA)

This researcher investigated two problems: (1) the accuracy and validity of instruments which measure Piagetian levels of thought; and (2) the need for more detailed models of concrete and formal operational structures, both as they develop and consolidate, and in their most highly developed state. Several tasks such as the Piagetian correlations…

Piaget's formal operational stage is related to the teaching of science by focusing on the development of paper and pencil tests for determining students' cognitive level of development and on procedures for helping concrete operational students improve achievement and become more formal in their thinking. (JMF)

In the study of perception during reading, the use of eye movement contingent control of the stimulus display has proved to be a useful research technique. With such a system, it is possible to experimentally manipulate, in real time, the characteristics of the stimulus display that is present on selected fixations as reading is in progress and to…