Difficulties in pictorial depth perception in Africa.
D000328:Adult; D000350:Africa, Central; D001154:Art; D002648:Child; D003431:Cross-Cultural Comparison; D003467:Cultural Deprivation; D003469:Culture; D003867:Depth Perception; D004522:Educational Status; D004781:Environmental Exposure; D006801:Humans; D008297:Male; D009790:Occupations; D011581:Psychological Tests; D011610:Psychosocial Deprivation; D012934:Social Isolation; D013334:Students; D014505:Urban Population; D014796:Visual Perception