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. Author manuscript; available in PMC: 2015 Aug 1.
Published in final edited form as: Atten Percept Psychophys. 2014 Aug;76(6):1778–1788. doi: 10.3758/s13414-014-0680-9

Figure 5.

Figure 5

Example pair of psychometric functions from one subject for the soft aperture condition (A) and the hard aperture condition (B). The x-axis shows the horizontal offset of the central target relative to the two flankers (− left, + right). The y-axis shows the proportion of responses that the target was to the right of the two flankers (triangles: leftward motion, circles: rightward motion). PSEs were calculated individually for each subject and then averaged across all observers for each motion and aperture condition. The motion-induced position shift (C) was calculated as half the difference between the PSEs of the two psychometric functions. Error bars represent bootstrapped 95% confidence intervals.