Abstract
According to the development of hardware and software technology, computer systems have been widely used in many fields. Information displayed on VDT, which is used as their visual interface, play an important part to ease the operation of computer systems. This research intends to provide some useful information for the design of human-computer interface, for example, the method of presentation of information displayed on VDT, which matches characteristics on human visual information processing of VDT tasks. In this research, visual recognition process is focused on as a basic and common human cognitive processing, and this recognition process is divided into six components. They are acquisition of displayed information on VDT, generation of visual information, judgement of eye-movement, programming of eye-movement, eye-movement and transformation of visual into recognized information. In particular, some human characteristics on each component, for various positions of displayed information, are clarified through two experiments taking up the upper-case letters as visual stimuli. In addition, in order to provide useful information for actual systems design and work design, a visual recognition model is built on the basis of psychological background, and is verified by using experimental data.
