This paper presents a new framework for accessibility based on a broad framework for metadata about adaptability. Accessibility is generally associated with the needs of people with disabilities while adaptability includes, for example, the transformation of digital resources and services for users as they change from one access device to another, as is the case when one uses a telephone instea...

A P300 Speller is a brain–computer interface (BCI) that enables subjects to spell text on a computer screen by detecting P300 Event-Related Potentials in their electroencephalograms (EEG). This BCI application is of particular interest to disabled patients who have lost all means of verbal and motor communication. Error-related Potentials (ErrPs) in the EEG are generated by the subject’s percep...

Independent lines of evidence suggest that the representation of emotional evaluation recruits both vertical and horizontal spatial mappings. These two spatial mappings differ in their experiential origins and their productivity, and available data suggest that they differ in their saliency. Yet, no study has so far compared their relative strength in an attentional orienting reaction time task...

OBJECTIVE To investigate whether virtual humans produce social facilitation effects. BACKGROUND When people do an easy task and another person is nearby, they tend to do that task better than when they are alone. Conversely, when people do a hard task and another person is nearby, they tend to do that task less well than when they are alone. This phenomenon is referred to in the social psycho...

Mathematical competence can be evaluated by analyzing pauses between strokes that occurring whilst an individual copies equations. These pauses provide a temporal signal that reflects the cognitive effort to process chunks. ‘Centre-click’ interaction with a mouse and response grid on a computer display is introduced as new technique for measuring the temporal chunk signal. Alternative pause mea...

In this article, we describe the first results of two series of experiments. It is the aim of our experiments to compare the performance of novice users working with ı̇∗ models. We compared the results achieved with ı̇∗ diagrams in the traditional notation with the results using the alternative notation which has been suggested by using Moody’s “Physics of Notations” framework. We created two mod...

This chapter focuses on digital technologies and geometry education, a combination of topics that provides a suitable avenue for analysing closely the issues and challenges involved in designing and utilizing digital technologies for learning mathematics. In revealing these issues and challenges, the chapter examines the design of digital technologies and related forms of learning activities fo...

We examined whether children's ability to integrate speech and gesture follows the pattern of a broader developmental shift between 3and 5-year-olds (Ramscar & Gitcho, 2007) regarding the ability to process two pieces of information simultaneously. In Experiment 1, 3-year-olds, 5-year-olds and adults were presented with either an iconic gesture or a spoken sentence or a combination of the two o...