Some types of geometrical illusions.

The Type I/Type II Perceptual Dichotomy: A Reanalysis for the Illusions of Extent

Perceptual and Motor Skills ◽

10.2466/pms.1987.65.3.751 ◽

1987 ◽

Vol 65 (3) ◽

pp. 751-754 ◽

Cited By ~ 1

Author(s):

Ted Jaeger

Keyword(s):

Type I ◽

Type Ii ◽

Geometrical Illusions ◽

New Type ◽

Age Trends

The categorization of geometrical illusions of extent as Type I or Type II phenomena based on variation in magnitude with age is critically examined. Methodological shortcomings and the failure of contemporary findings to show matching age trends for components of a single illusion are presented as factors undermining the usefulness of this perceptual dichotomy. Finally, it is shown that a new Type I/Type II dichotomy based on changes in perceived size rather than amount of illusion indicates a developmental commonality among most of the illusions of extent.

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A rule-based model for visual geometrical illusions

Systems and Computers in Japan ◽

10.1002/scj.4690191110 ◽

1988 ◽

Vol 19 (11) ◽

pp. 97-109

Author(s):

Kazunori Seki ◽

Noboru Sugie ◽

Kokichi Sugihara

Keyword(s):

Rule Based ◽

Geometrical Illusions

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Individual Differences in Perceptual Organization: Reanalyzing Thurstone’s classic (1944) data and rediscovering factors for geometrical illusions, perceptual switching, and holistic ‘Gestalt’ closure

Journal of Vision ◽

10.1167/jov.20.11.140 ◽

2020 ◽

Vol 20 (11) ◽

pp. 140

Author(s):

David Peterzell

Keyword(s):

Individual Differences ◽

Perceptual Organization ◽

Geometrical Illusions

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An Analysis of Theoretical Approaches to Geometrical-Optical Illusions

10.1093/acprof:oso/9780199794607.003.0004 ◽

2017 ◽

Author(s):

Barbara Gillam

Keyword(s):

Functional Role ◽

Perception And Action ◽

Optical Illusions ◽

Line Drawings ◽

Physiological Processes ◽

Theoretical Approaches ◽

Geometrical Illusions ◽

Two Visual Systems ◽

3D Scene ◽

Theoretical Issues

The geometrical optical illusions, such as the Müller-Lyer and the Poggendorff, are simple line drawings, which demonstrate errors as large as 25% when people are asked to match their properties such as size, angles, and line collinearity. They have been tantalizing people for at least 150 years and are still not really understood. Illusion figures have been used to probe the consistency of different perceptual properties and also of perception and action with implications for the theory of two visual systems. Explanations of geometrical illusions tend to invoke either physiological processes or the functional role illusion responses may have when viewing a 3D scene. This chapter examines all of these theoretical issues, discussing evidence for and against the major theories.

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Neurological models of size scaling

Behavioral and Brain Sciences ◽

10.1017/s0140525x03390090 ◽

2003 ◽

Vol 26 (4) ◽

pp. 425-425

Author(s):

Helen E. Ross

Keyword(s):

Perceptual Learning ◽

Relative Size ◽

Size Perception ◽

Size Constancy ◽

Size Discrimination ◽

Size Scaling ◽

Geometrical Illusions

Lehar argues that a simple Neuron Doctrine cannot explain perceptual phenomena such as size constancy but he fails to discuss existing, more complex neurological models. Size models that rely purely on scaling for distance are sparse, but several models are also concerned with other aspects of size perception such as geometrical illusions, relative size, adaptation, perceptual learning, and size discrimination.

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