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. Author manuscript; available in PMC: 2010 Sep 16.
Published in final edited form as: J Vis. 2009 Jan 12;9(1):8.1–818. doi: 10.1167/9.1.8

Figure 6.

Figure 6

Coherence threshold vs. slant for human observers. Coherence threshold, the proportion of signal dots in the stimulus, is plotted as a function of the slant of the sawtooth slats. Different panels show data from different observers. Different symbol shapes represent data for different spatial frequencies: circles, squares, and triangles for 0.15, 0.3, and 0.6 cpd, respectively. Different colors represent data from the two viewing distances: red and blue for 39 cm and 17 cm, respectively. Error bars are standard errors of the means calculated by bootstrapping.