Wenderoth P, Johnson M
Perception. 1981;10(2):165-72. doi: 10.1068/p100165.
An experiment is reported which confirms and extends a previous finding that amputations of the Poggendorff figure do not necessarily result in large positive effects with obtuse-angle stimuli, and small or even negative effects with acute-angle stimuli. Indeed, the acute-angle effects found were significantly greater than the obtuse-angle effects, and the full Poggendorff error was not explicable in terms of the linear summation of the component-angle effects. An 'alignment displacement effect' reported earlier by Hotopf and Obonai was shown to occur, but could not be an important component of the Poggendorff illusion.
本文报告了一项实验，该实验证实并扩展了先前的一项发现，即对波根多夫图形进行切割后，对于钝角刺激不一定会产生显著的正向效应，而对于锐角刺激则可能产生较小甚至负向的效应。实际上，所发现的锐角效应显著大于钝角效应，而且完整的波根多夫误差无法用各分量角度效应的线性总和来解释。霍托夫和小尾 earlier 早些时候报告的“对齐位移效应”确实存在，但它不可能是波根多夫错觉的一个重要组成部分。
