A STUDY ON DEVELOPMENT OF VISUAL MEMORY

Abstract

For the purpose of examining developmentally the process of memorization and retention, the experiments were designed with 968 subjects aged 9, 11, 13, 15, and 17 years, by methods of complete memorization and free recall method, in which 7 nonsense syllables were used as the materials. The results obtained were that (1) the development of memorization is expressed by the curve of convex type, and (2) in the immediate recall after memorization, pupils of 17 years old are most superior, but in the long retention, pupils under 11 years old excel pupils of over that, accordingly, (3) the order of the development of memorization is out of accord with that of retention, and from that we can point out that there are certain qualitative differences between the memory of pupils under 11 years old and that of pupils over 13 years old.