Previous studies have provided evidence of multi-level mental representations of language-conveyed spatial (scenic) information. However, the available evidence is largely inconclusive with regard to the structure of these mental representations. A laboratory experiment assesses computer-assisted problem-solving performance abilities when language-conveyed representations of spatial information...

The search for faster ways to get fractal pictures onto the computer screen leads to new problems on Latin squares.

Purpose of the study is to investigate how adults solve tangram based geometry problems on computer screen. Two problems with different difficulty levels were presented to 20 participants. The participants tried to solve problems by placing seven geometric objects into correct locations. In order to analyze the process, the participants and their eye movements were recorded by an Tobii Eye Trac...

Conventional computer display products for the visually impaired are limited by the amount of enlarged imagery that can be displayed at any one time, and by awkward methods for navigating about the scene. This paper describes a prototype system designed to address these problems by providing a head-mounted display interface which allows the user to position a cursor anywhere on an enlarged virt...

People fixate on blank locations if relevant visual stimuli previously occupied that location; the so-called ‘looking-atnothing’ effect. While several theories have been proposed to explain potential reasons for the phenomenon, no theory has attempted to predict the stability of this effect with practice. We conducted an experiment in which participants listened to four different sentences. Eac...

People often tacitly assume an egocentric perspective when describing spatial scenes, and then use ambiguous descriptions (e.g., “The bottle is on the left.”). However, they can also take an alternative perspective, for instance referencing an agent that is present in the scene to reduce ambiguity (e.g., “The bottle is on your right.”). In this experiment, participants viewed a computer screen ...

We report the effects on accuracy and reaction time at a mental rotation task for four year old subjects who were either given practice rotating objects on a computer screen by turning a joystick or gesturing about rotating objects on a computer screen. We found that training children to gesture about rotation improves performance on MR. Children who were given practice rotating objects with a ...

The first one is intended for small children who have difficulty in fixating on a given target. It uses highcontrast images of increasing complexity. The investigations have shown that by training the vision of the children with such figures presented on a computer screen, their attention can be kept on the task; due to interactivity they become motivated. The program enables feedback for the t...

Knowledge of psychrometric properties is the basic requirement for environmental measurements and drying processes. The software GRAPSI_DRAW is capable of calculating the psychrometric properties and simulating the basic psychrometric processes with the precision of analytical methods, also showing the results in charts plotted on the computer screen.