Table 3.

Effects of contrast and duration on acuity (A) and flanked acuity (A'). Each log-log slope of A (or A') versus contrast is averaged over the various durations, and each log-log slope of A (or A') versus duration is averaged over the various contrasts. Greater absolute value of the log-log slope indicates a stronger effect. The spacing factor s is 1.1.

Ecc. (deg)	Duration (ms)	Contrast	Slope of log A vs. log contrast	Slope of log A' vs. log contrast	Slope of log A vs. log duration	Slope of log A' vs. log duration
5	100, 200, 400	0.15 to 0.9	−0.37	−0.13	−0.19	−0.21
0	100, 200, 400	0.15 to 0.9	−0.43	−0.26	−0.22	−0.21
0	13, 26, 53	0.3, 0.6	−0.58	−0.58	−0.54	−0.54