Sidney Bradford

Sidney Bradford, born 1907, was born blind but regained sight at age 52. He was the subject of many scientific studies of perception by neuropsychologist Richard Gregory .

Just after the restoration of his sight, Bradford was able to read (visually) the time on the ward clock. He could thus see by analogy with earlier touch experience.

Bradford did not perceive the ambiguity of the Necker cube and was unable to interpret the perspective of two dimensional art. Nevertheless, he could accurately judge the distance to objects in the same room (being familiar with these distances prevision by virtue of walking to them).

See also

• Mike May