Abstract
THERE is a well-known visual illusion in which a vertical line is judged as longer than a horizontal line of the same length. The illusion also holds, though attenuated, when lines are perceived tactually, even in blind subjects1. This communication is concerned with a similar error which is made when speed of movement is assessed tactually, but which does not show when the judgment is made visually.
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References
Hatwell, Y., Anniée Psychol., No. 1, 11 (1960).
Boring, E. G., Sensation and Perception in the History of Experimental Psychology, 244 (1942).
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LIDDLE, D., Foss, B. A Vertical-Horizontal Illusion for Movement perceived tactually. Nature 197, 108 (1963). https://doi.org/10.1038/197108b0
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DOI: https://doi.org/10.1038/197108b0
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