Kapoula Z
Vision Res. 1985;25(8):1155-7. doi: 10.1016/0042-6989(85)90105-1.
There is general belief that saccadic eye movements almost always undershoot by about 10%. It has long been known, however, in manual tracking that there exists a response bias termed the range effect: small distances are overestimated while large distances are underestimated. The present experiments demonstrate that saccades also show a range effect. The use of two different sets of target distances that partially overlap each other showed that saccades can be made to systematically either overshoot or undershoot their targets depending on the locations of the other targets in the set.
人们普遍认为，眼球的扫视运动几乎总是会少瞄大约10%。然而，长期以来在手动跟踪中就已知道，存在一种被称为范围效应的反应偏差：小距离被高估，而大距离被低估。目前的实验表明，扫视运动也表现出范围效应。使用两组部分相互重叠的不同目标距离表明，扫视运动可以根据该组中其他目标的位置而系统性地要么超瞄要么少瞄其目标。
