[The effects of spatial arrangement upon selective letter perception].
Two experiments were conducted in order to test the hypothesis presented by Sonoda, Sato, & Sakuma (1975): Selective letter perception in visual letter displays is influenced not only by the total number of letters presented and the spatial separation between the target letter and its adjacent noise letters, but also by the spatial arrangement of letters. The reaction time of pressing buttons to the target letter was measured as a function of spatial arrangement of letters, where the effects of the total number of letters and the spatial separation were controlled appropriately and the line indicator was strictly the only cue for target selection. It was suggested that the selective letter perception is influenced by the special spatial arrangement of letters which is produced by both the total number of letters and the heterogeneity of letter-to-letter separations.
D000293:Adolescent; D000328:Adult; D001288:Attention / Q000502:physiology; D005260:Female; D006801:Humans; D008297:Male; D011601:Psychophysics; D011930:Reaction Time / Q000502:physiology; D011932:Reading; D014796:Visual Perception / Q000502:physiology*