視覚障害と基礎心理学(2002年度 第1回フォーラム 現場に立つ基礎心理学)

抄録

An interesting field of basic research in psychology of sensation and perception named "psychophysics of reading" developed in the process of solving problems practitioners have been facing in the fields of special education and rehabilitation for persons with visual impairments. Psychophysical study of relationship between stimulus dimensions, such as spatial resolution, contrast, and visual field size and reading speed gave us basic understanding about our reading behavior as well as a good tool to help persons with visual impairments find suitable aids and environmental modification in order to ease their reading difficulty. Especially the reading speed function of print size for each patient gives us a very sensitive measure about patient's quality of vision. As an example, one of our recent findings showed that the reading function explained the claim of degraded vision from a patient with ring scotoma better than usual visual acuity measure.