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Science 23 August 1963:
Vol. 141. no. 3582, pp. 722 - 723
DOI: 10.1126/science.141.3582.722
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Articles

Motor-Sensory Feedback and the Geometry of Visual Space

Richard Held 1 and Jerold Rekosh 2

1 Psychology Section, Massachusetts Institute of Technology, Cambridge 39
2 Department of Psychology, Brandeis University, Waltham, Massachusetts

Normal surroundings appear curved when viewed through wedge prism eyeglasses. But prolonged viewing of uniformly curved lines makes them appear less curved. An environment specially patterned to prevent the appearance of curvature when viewed through a prism made possible the demonstration of change in apparent curvature wholly dependent upon the visual feedback accompanying self-produced movement of the prism-wearer.


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