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Visual orientation illusions: Global mechanisms involved in hierarchical effects and frames of reference

Citation

Daini, R and Wenderoth, P and Smith, ST, Visual orientation illusions: Global mechanisms involved in hierarchical effects and frames of reference, Perception and Psychophysics, 65, (5) pp. 770-778. ISSN 0031-5117 (2003) [Refereed Article]

DOI: doi:10.3758/BF03194813

Abstract

Five experiments were conducted in order to determine which of two hypotheses, initially proposed by Rock (1990), accounts for interactions between oriented elements in a visual scene. We also explored the suggestion that two hypothetical processes--namely, frame of reference and hierarchical organization--describe phenomena arising from distinct mechanisms (Spinelli, Antonucci, Daini, Martelli, & Zoccolotti, 1999). Double inducing stimulus versions of one-dimensional and two-dimensional tilt illusions, the rod-and-frame illusion, and combinations of these were used. Our data suggest that both hypotheses can predict orientation interactions in conditions in which only one mechanism--namely, the global visual mechanism of symmetry axes extraction (Wenderoth & Beh, 1977)--is activated. Which hypothesis is appropriate to predict the perceived orientation depends on some physical features of the objects.

Item Details

Item Type:Refereed Article
Research Division:Medical and Health Sciences
Research Group:Neurosciences
Research Field:Sensory Systems
Objective Division:Health
Objective Group:Clinical Health (Organs, Diseases and Abnormal Conditions)
Objective Field:Hearing, Vision, Speech and Their Disorders
Author:Smith, ST (Associate Professor Stuart Smith)
ID Code:85514
Year Published:2003
Web of Science® Times Cited:6
Deposited By:Health Sciences A
Deposited On:2013-07-12
Last Modified:2013-07-12
Downloads:0

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