Skip to main content
. Author manuscript; available in PMC: 2010 Jun 1.
Published in final edited form as: Vision Res. 2009 Apr 7;49(11):1389–1396. doi: 10.1016/j.visres.2008.10.012

Figure 4.

Figure 4

Mean log threshold contrast as a function of the magnitude of noise asynchrony for S1 and S2 for either dynamic (A) or static (B) noise, for target durations of either 20 ms (filled symbols) or 280 ms (unfilled symbols). Values on the x-axis indicate the duration of the noise preceding the target, which was always equal to the noise duration following the target. Vertical dashed lines indicate temporal synchrony between target and noise. Data points to the left of the vertical lines represent mean log threshold contrast in the absence of noise. Error bars indicate ±1 SEM. Solid curves represent least-squares best fits of exponential functions that were fit to the data for the 20-ms target as described in the text. Dot-dashed curves represent the same exponential functions displaced downward to minimize the least-squares errors from the data for the 280-ms target.