Dow B M, Snyder A Z, Vautin R G, Bauer R
Exp Brain Res. 1981;44(2):213-28. doi: 10.1007/BF00237343.
Receptive field size and magnification have been studied in striate cortex of awake, behaving rhesus monkeys at visual eccentricities in the range of 5-160 min. The major findings that emerge are (1) magnification in the foveola achieves values in the range of 30 mm/deg, (2) mean field size is not proportional to inverse magnification in contrast with previous reports, and (3) the product, magnification X aggregate field size, is greater in central vision than in peripheral vision. Thus, a point of light projected onto foveal retina is "seen" by larger numbers of striate cortical cells than a point of light projected onto peripheral retina. Implications of these findings for visual localization and two-point discrimination are discussed.
在清醒且行为活动的恒河猴的纹状皮层中，研究了视野大小和放大率，视觉离心率范围为5 - 160分钟。得出的主要发现如下：（1）中央凹的放大率达到30毫米/度的范围；（2）与之前的报告相反，平均视野大小与放大率的倒数不成正比；（3）放大率×总视野大小的乘积在中央视觉中比在周边视觉中更大。因此，投射到中央凹视网膜上的一个光点，被纹状皮层细胞“看到”的数量比投射到周边视网膜上的一个光点更多。讨论了这些发现对视觉定位和两点辨别能力的影响。
