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Journal of Vision. 2010; 10(10):20. https://doi.org/10.1167/10.10.20
Journal of Vision. 2008; 8(6):881. https://doi.org/10.1167/8.6.881
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Journal of Vision. 2006; 6(6):222. https://doi.org/10.1167/6.6.222
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