A simple explanation of the induced size effect

Aries Arditi; Lloyd Kaufman; J. Anthony Movshon

doi:10.1016/0042-6989(81)90173-5

A simple explanation of the induced size effect

Aries Arditi, Lloyd Kaufman, J. Anthony Movshon

Neural Science

Research output: Contribution to journal › Article › peer-review

Abstract

When a meridional lens is oriented axis vertical before one eye, the horizontal magnification produces a tilting of visual space in the third dimension which is predictable from the geometry of binocular parallax. When, however, the lens is oriented axis horizontal so that the magnification is vertical, a distortion of space occurs which is similar to the tilting caused by the presence of a lens oriented axis vertical over the other eye. It has commonly been believed that this phenomenon, known as the induced size effect, has no geometric explanation, and is an anomalous stereoscopic response to vertical disparities. An explanation is presented which accounts for the induced effect in terms of actual horizontal disparities between vertically magnified oblique lines, and disparities of the two-dimensional spatial spectra of the two eyes.

Original language	English (US)
Pages (from-to)	755-764
Number of pages	10
Journal	Vision research
Volume	21
Issue number	6
DOIs	https://doi.org/10.1016/0042-6989(81)90173-5
State	Published - 1981

ASJC Scopus subject areas

Ophthalmology
Sensory Systems

Access to Document

10.1016/0042-6989(81)90173-5

Cite this

@article{30d73dbe5cd64a2795d2b3069f57e185,

title = "A simple explanation of the induced size effect",

abstract = "When a meridional lens is oriented axis vertical before one eye, the horizontal magnification produces a tilting of visual space in the third dimension which is predictable from the geometry of binocular parallax. When, however, the lens is oriented axis horizontal so that the magnification is vertical, a distortion of space occurs which is similar to the tilting caused by the presence of a lens oriented axis vertical over the other eye. It has commonly been believed that this phenomenon, known as the induced size effect, has no geometric explanation, and is an anomalous stereoscopic response to vertical disparities. An explanation is presented which accounts for the induced effect in terms of actual horizontal disparities between vertically magnified oblique lines, and disparities of the two-dimensional spatial spectra of the two eyes.",

author = "Aries Arditi and Lloyd Kaufman and Movshon, {J. Anthony}",

note = "Funding Information: Acknowledgements-Thrise searchw ass upportedb y grants to J.A.M. from NSF (BNS 76-18904a)n d NIH (EY 2017) and by a United StatesA ir Force contractt o Robert Sek-uler (AFOSR-79-0064)S. ome of the work describedh ere was carriedo ut at the CresapN euroscienceL aboratoryo f NorthwesternU niversity. J.A.M. is an Alfred P. Sloan ResearchF ellow. We thank George Sperling and Bela Julesz for their insightfucl ommentso n an earlierv ersiono f this manuscript.",

year = "1981",

doi = "10.1016/0042-6989(81)90173-5",

language = "English (US)",

volume = "21",

pages = "755--764",

journal = "Vision Research",

issn = "0042-6989",

publisher = "Elsevier Limited",

number = "6",

}

TY - JOUR

T1 - A simple explanation of the induced size effect

AU - Arditi, Aries

AU - Kaufman, Lloyd

AU - Movshon, J. Anthony

N1 - Funding Information: Acknowledgements-Thrise searchw ass upportedb y grants to J.A.M. from NSF (BNS 76-18904a)n d NIH (EY 2017) and by a United StatesA ir Force contractt o Robert Sek-uler (AFOSR-79-0064)S. ome of the work describedh ere was carriedo ut at the CresapN euroscienceL aboratoryo f NorthwesternU niversity. J.A.M. is an Alfred P. Sloan ResearchF ellow. We thank George Sperling and Bela Julesz for their insightfucl ommentso n an earlierv ersiono f this manuscript.

PY - 1981

Y1 - 1981

N2 - When a meridional lens is oriented axis vertical before one eye, the horizontal magnification produces a tilting of visual space in the third dimension which is predictable from the geometry of binocular parallax. When, however, the lens is oriented axis horizontal so that the magnification is vertical, a distortion of space occurs which is similar to the tilting caused by the presence of a lens oriented axis vertical over the other eye. It has commonly been believed that this phenomenon, known as the induced size effect, has no geometric explanation, and is an anomalous stereoscopic response to vertical disparities. An explanation is presented which accounts for the induced effect in terms of actual horizontal disparities between vertically magnified oblique lines, and disparities of the two-dimensional spatial spectra of the two eyes.

AB - When a meridional lens is oriented axis vertical before one eye, the horizontal magnification produces a tilting of visual space in the third dimension which is predictable from the geometry of binocular parallax. When, however, the lens is oriented axis horizontal so that the magnification is vertical, a distortion of space occurs which is similar to the tilting caused by the presence of a lens oriented axis vertical over the other eye. It has commonly been believed that this phenomenon, known as the induced size effect, has no geometric explanation, and is an anomalous stereoscopic response to vertical disparities. An explanation is presented which accounts for the induced effect in terms of actual horizontal disparities between vertically magnified oblique lines, and disparities of the two-dimensional spatial spectra of the two eyes.

UR - http://www.scopus.com/inward/record.url?scp=0019493882&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0019493882&partnerID=8YFLogxK

U2 - 10.1016/0042-6989(81)90173-5

DO - 10.1016/0042-6989(81)90173-5

M3 - Article

C2 - 7314452

AN - SCOPUS:0019493882

SN - 0042-6989

VL - 21

SP - 755

EP - 764

JO - Vision Research

JF - Vision Research

IS - 6

ER -

A simple explanation of the induced size effect

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this