Beazley L D, O'Connor W M, Illingworth D J
Vision Res. 1982;22(1):135-8. doi: 10.1016/0042-6989(82)90174-2.
This study, using a forced-choice technique, shows that 5-yr-old children have greater sensitivity for vertical and horizontal sinusoidal gratings than for obliques. Contrast thresholds for all orientations were similar to those of adults as was the magnitude of the meridional anisotropy. These results suggest that meridional anisotropy does not develop over an extended period of childhood as was previously reported (Mayer, 1977). Reasons for the discrepancy between the two studies are discussed.
本研究采用强制选择技术，结果表明5岁儿童对垂直和水平正弦光栅的敏感度高于倾斜光栅。所有方向的对比度阈值与成年人相似，子午线各向异性的程度也是如此。这些结果表明，子午线各向异性并非如先前报道（Mayer，1977）那样在儿童期的较长时间内发展。文中讨论了两项研究结果存在差异的原因。
