Hess R F, Watt R J
Physiological Laboratory, Cambridge, England.
Vision Res. 1990;30(7):1021-31. doi: 10.1016/0042-6989(90)90112-x.
In order to understand the regional distribution of the mechanisms which underlie localization accuracy we (1) chose a task which is known to involve localization accuracy (2) optimized stimulus parameters for ecentric loci and (3) determined how two key spatial factors which affect localization accuracy vary as a function of ecentricity. These involve Gaussian blur and Gaussian jitter. These results suggest that there are three different functions with ecentricity for the mechanisms underlying this task which we relate to the spatial properties of the retina, namely mean cone density, receptoral convergence and regularity.
为了了解构成定位精度基础的机制的区域分布，我们：（1）选择了一个已知涉及定位精度的任务；（2）针对偏心位点优化了刺激参数；（3）确定了影响定位精度的两个关键空间因素如何随偏心度变化。这些因素包括高斯模糊和高斯抖动。这些结果表明，对于该任务的基础机制，存在三种随偏心度变化的不同函数，我们将其与视网膜的空间特性相关联，即平均视锥细胞密度、感受器会聚和规则性。
