Reproduction of binary visual patterns having different element-presentation sequences.

Abstract

Twenty-seven Os reproduced binary patterns with the elements presented in 8 spatial-temporal conditions, involving right-to-left, left-to-right, or random sequences, or presentation of all elements simultaneously. Fewer errors appeared to the left of fixation relative to the right, but only when all 10 elements appeared simultaneously. Simultaneous exposure produces fewer errors than did sequential exposure. No large differences in totals of errors among the sequential-presentation conditions appeared, but "recency" effects, appearing in the right-to-left and left-to-right sequences, were stronger than "primacy" effects. Orderly sequential presentation of the elements produced superior performance for individual Os when the sequence proceeded from the end showing more errors in the control, random-presentation condition.