Abstract
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.
Original language | English |
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Pages (from-to) | 165-172 |
Number of pages | 8 |
Journal | Perception |
Volume | 10 |
Issue number | 2 |
DOIs | |
Publication status | Published - 1981 |
Externally published | Yes |