Angle-matching illusions and perceived line orientation

P. Wenderoth, D. White

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Spatial illusions which occur in angle-matching tasks were examined in six experiments, using two different kinds of display. In experiments 1 and 2, illusory errors generally were in the direction predicted by Lennie's hypothesis which states that angle arms are attracted perceptually towards the oblique axes of space, although the display used in these experiments differed from Lennie's. However, experiment 3 showed that these errors might equally be explained by the addition of interactive effects between angle arms (tilt illusions). Parametric investigation of Lennie's figures (experiments 4 and 5) showed that the largest angular illusion occurred with the largest angle used (45°) and an intermediate line length (2 deg 7 min). These angular illusions were not explicable by the additon of tilt illusions (experiment 6), suggesting that different judgmental processes may underline orientation and angle estimations.

Original languageEnglish
Pages (from-to)565-575
Number of pages11
JournalPerception
Volume8
Issue number5
Publication statusPublished - 1979

Fingerprint Dive into the research topics of 'Angle-matching illusions and perceived line orientation'. Together they form a unique fingerprint.

Cite this