Figure 1 Single‐word reading speed as a function of word length, measured as milliseconds per letter (mspl), plotted against text reading speed, in words per minute (wpm), for the pure alexia (PA) group (open circles) and the hemianopic alexia group (closed). The y axis is a log scale, as some patients with PA were very slow at single‐word reading. The arbitrary cut‐off of 100 mspl, used to distinguish between the two groups, is indicated. The upper limit of normal for single‐word reading is 10 mspl. The lower limit of normal for text reading is 112 wpm.