Table 1.

Summary of stimulus statistics and results

Standard Deviation (cd/m2)Skewness (unitless)Kurtosis (unitless)Absolute deviation (cd/m2)Firing rate (spikes/s)Gain (%)Explained variance (%)
ON cellsOFF cellsON cellsOFF cellsON cellsOFF cells
mean (SE)mean (SE)median (SD)median (SD)mean (SE)mean (SE)
Control22.60.01.719.219.2 (4.2)19.9 (3.1)100 (2.8)100 (2.0)76.878.3
Tests 13.7 0.0 2.2 10.617.8 (4.5)16.4 (2.8) 162 (6) 147 (7) 79.1 (3.2)79.5 (2.6)
28.9 0.0 1.2 27.819.2 (4.2)21.1 (3.2) 77 (3) 88 (3) 74.4 (2.7)75.6 (2.2)
22.8 −0.4 1.719.318.4 (4.3)19.6 (3.1)101 (2)105 (2)76.2 (3.0)78.0 (2.4)
22.6 0.4 1.719.219.4 (4.1)19.3 (3.1)101 (3)99 (2)78.0 (2.8)76.6 (2.4)
22.80.0 1.5 21.119.0 (4.2)19.8 (3.2)102 (3)102 (2)76.9 (2.6)77.6 (2.3)
22.60.0 1.9 17.318.9 (4.2)19.5 (3.1)101 (3)102 (3)74.7 (3.5)75.1 (2.4)