1803
Badcock and Westheimer ( Spatial Vision 1 ( 1 ) , 3 - 11 , 1985 ) showed that a thin vertical line induces nearby zones of attraction and repulsion ; this study extends those results by more closely examining the horizontal and vertical extents of the repulsion zone and by using an illusory contour to induce repulsion .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
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