Abstract
This paper examines some characteristics on recognition processes in vesual information processing through a structural approach. In particular, upper-case letters are taken up as visual stimuli, and the recognition processes are confined to the parafoveal vision without saccadic eye movements. Three hypotheses concerning the eccentricity to the visual stimulus from the fixation point, the transformation into recognized information, and the decision on eye movements are built and examined through three experiments with an eye-mark recorder. In addition, the relation between the eccentricity and the fixation duration for a letter recognition is considered through a letter recongnition difficulty model.
