A review of the literature on the spatial functioning of the blind, the results of a questionnaire of 75 sighted college students and their parents, and results of a study of 87 blind and seeing adults' performance on three spatial tasks are presented. The review suggested that adventitiously blind individuals perform better than congenitally blind individuals on tasks where the stimuli were complex, familiar and/or appended within arm's length of the body. Results of the questionnaire were used to predict several performance measures from the three spatial tasks. The findings indicated that tactual pattern discrimination performance and tactual path learning performance were primarily predicted by the degree of early visual experience, whereas locomotor path performance was primarily predicted by the degree of perceptual motor experience. The preliminary and final questionnaires and a table of correlations between all dependent variables are appended. (Author/PHR)