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Case Reports
. 2006;35(6):847-51.
doi: 10.1068/p5316.

Foreshortening, convergence and drawings from a blind adult

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Case Reports

Foreshortening, convergence and drawings from a blind adult

John M Kennedy et al. Perception. 2006.

Abstract

Esref is a congenitally totally blind man, practiced in drawing. He was asked to draw solid and wire cubes situated in several places around his vantage point. He used foreshortening of receding sides and convergence of obliques, in approximate one-point perspective. We note that haptics provides information about the direction of objects--the basis of perspective.

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