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. Author manuscript; available in PMC: 2009 Apr 27.
Published in final edited form as: Nat Neurosci. 2007 Sep 30;10(11):1483–1491. doi: 10.1038/nn1967

Table 1.

Each box lists the median ratio (25th and 75th percentiles in brackets) of the parameter of interest (attend-RF / attend-away). Additionally it lists the number of cells that were recorded, the number of cells for which the parameter of interest was significantly affected (bootstrap method), and the p-value under the null hypothesis that the average ratio was equal to 1 (signed rank test). Ratios < 1 indicate that the parameter of interest was reduced by attention

Median Ratio (25th & 75th percentiles)
Preferred Length Summation Area Inhibition Area Summation Gain Inhibition Gain
Fovea/parafovea
High Contrast
All Cells 0.94 (0.69, 1.03)
n = 92, p < 0.01
0.87 (0.72, 1.06)
n = 92, p < 0.01
0.93 (0.52, 1.64)
n = 92, p = 0.81
1.14 (0.99, 1.41)
n = 92, p < 0.01
1.09 (0.78, 1.79)
n = 92, p = 0.06
Significant Cells 0.91 (0.59, 1.07)
n = 66, p < 0.01
0.81 (0.70, 1.14)
n = 75, p < 0.01
0.97 (0.47, 1.80)
n = 66, p = 0.88
1.21 (1.03, 1.58)
n = 62, p < 0.01
123 (0.66, 1.09)
n = 49, p = 0.38
Fovea/parafovea
Medium Contrast
All Cells 0.92 (0.78, 1.06)
n = 106, p < 0.01
0.94 (0.77, 1.09)
n = 106, p < 0.01
1.04 (0.85, 1.29)
n = 106, p = 0.47
1.02 (0.83, 1.19)
n = 106, p = 0.41
0.96 (0.59, 1.28)
n = 106, p = 0.22
Significant Cells 0.88 ( 0.73, 1.06)
n = 80, p < 0.01
0.86 (0.72, 1.09)
n = 82, p < 0.01
1.08 (0.69, 1.46)
n = 53, p = 0.17
0.99 (0.83, 1.19)
n = 50, p = 0.52
0.88 (0.33, 1.28)
n = 44, p = 0.04
Periphery Medium
Contrast
All Cells 1.08 (0.97, 1.32)
n = 69, p < 0.01
1.07 (0.92, 1.35)
n = 69, p < 0.001
1.12 (0.83, 1.40)
n = 69, p = 0.11
1.16 (1.04, 1.30)
n = 69, p < 0.001
1.15 (0.78, 1.56)
n = 69, p = 0.02
Significant Cells 1.19 (0.96, 1.51)
n = 47, p = 0.02
1.09 (0.92, 1.42)
n = 57, p < 0.001
1.22 (0.83, 1.83)
n = 37, p = 0.02
1.21 (1.04, 1.37)
n = 42, p < 0.001
1.17 (0.64, 1.51)
n = 36, p = 0.067