Table 1.
Means and standard deviations of the center wavelength chosen for unique blue, green, and yellow. Numbers in parentheses specify the number of observers tested. Values in the top panel show settings for narrow vs. broad spectra (foveal viewing), while the lower panel shows settings for foveal vs. peripheral viewing.
| Narrow vs. broad (fovea) | t test (mean), F test (variances) | ||||||
|---|---|---|---|---|---|---|---|
| Blue | Mean (41) | 479.2 vs. 480.5 | t = −2.69 (p = .01) | ||||
| SD (41) | 8.98 | 7.47 | F = 1.45 (p = .12) | ||||
| Green | Mean (30) | 520.1 vs. 521.9 | t = −1.57 (p = .13) | ||||
| SD (30) | 10.23 | 12.07 | F = 1.39 (p = .19) | ||||
| Yellow | Mean (33) | 570.6 vs. 570.7 | t = −0.5 (p = .61) | ||||
| SD (33) | 5.11 | 4.83 | F = 1.12 (p = .37) | ||||
| Fovea vs. periphery (narrow) | t test | Fovea vs. periphery (broad) | t test | ||||
|
| |||||||
| Blue | Mean (9) | 474.9 vs. 472.3 | t = 2.71 (p = .01) | 476.2 vs. 475.8 | t = 0.45 (p = .67) | ||
| SD (9) | 3.51 | 5.23 | 2.88 | 4.62 | |||
| Green | Mean (9) | 520.3 vs. 513.0 | t = 2.54 (p = .03) | 519.0 vs. 517.7 | t = 0.78 (p = .46) | ||
| SD (9) | 13.50 | 10.60 | 14.89 | 13.98 | |||
| Yellow | Mean (9) | 569.4 vs. 560.4 | t = 4.20 (p = .003) | 569.5 vs. 561.7 | t = 4.62 (p = .002) | ||
| SD (9) | 6.10 | 7.25 | 5.87 | 4.99 | |||