Mussap A J, Levi D M
College of Optometry, University of Houston, Texas 77204-6052.
J Opt Soc Am A Opt Image Sci Vis. 1995 Feb;12(2):225-33. doi: 10.1364/josaa.12.000225.
We investigate the role of binocular mechanisms in vernier acuity, using dichoptic variants of spatial-frequency masking and flank-line interference paradigms. The finding that grating masks and flanking lines presented to one eye elevate (worsen) thresholds for detecting vernier offsets presented to the other eye suggests that neural mechanisms mediating vernier acuity receive binocular inputs, thus placing the loci of these mechanisms at postreceptoral sites. The observation that these threshold elevation effects are orientation dependent is consistent with a contribution to vernier acuity from oriented cortical filters.
我们使用空间频率掩蔽和侧翼线干扰范式的双眼变体，研究双眼机制在游标视力中的作用。向一只眼睛呈现的光栅掩模和侧翼线会提高（恶化）检测呈现给另一只眼睛的游标偏移的阈值，这一发现表明，介导游标视力的神经机制接收双眼输入，因此将这些机制的位点置于感受器后部位。这些阈值升高效应与方向有关的观察结果，与定向皮层滤波器对游标视力的贡献是一致的。
