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. Author manuscript; available in PMC: 2011 Jul 27.
Published in final edited form as: J Vis. 2010 Oct 26;10(12):31. doi: 10.1167/10.12.31

Figure 3.

Figure 3

Results of Experiment 2a. (A) Group averaged data (N = 7, six were naïve observers) for different ISIauditory conditions. The plot indicates the proportion of trials in which the test stimulus was judged to move faster than the reference stimulus as a function of ISItest. The open and filled symbols represent 20 and 340 ms ISIauditory conditions, respectively. Error bars indicate ±SEM. The error bars for the visual-only and 180 ms ISIauditory conditions were similar to those in the other conditions and were omitted to avoid clutter. The dotted and dashed curves indicate visual-only and 180 ms ISIauditory psychometric fits, respectively. The intersection of the 50% point with the vertical line gave an estimate of the PSE for each condition. (B) The averaged PSEs of all observers as a function of ISIauditory. Error bars correspond to ±SEM. The dashed line indicates the PSE for the visual-only condition and the error-bar placed over the symbol at the end of this line represents ±SEM.