English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  The Craik-O'Brien-Cornsweet illusion in colour: Quantitative characterisation and comparison with luminance

Wachtler, T., & Wehrhahn, C. (1997). The Craik-O'Brien-Cornsweet illusion in colour: Quantitative characterisation and comparison with luminance. Perception, 26(11), 1423-1430. doi:10.1068/p261423.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-E9BA-C Version Permalink: http://hdl.handle.net/21.11116/0000-0006-D17C-3
Genre: Journal Article

Files

show Files

Locators

show
hide
Description:
-

Creators

show
hide
 Creators:
Wachtler, T1, 2, Author              
Wehrhahn, C1, 2, Author              
Affiliations:
1Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              
2Former Department Comparative Neurobiology, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497800              

Content

show
hide
Free keywords: -
 Abstract: The strength of the Craik-O'Brien-Cornsweet illusion was measured for different values of spatial and temporal stimulus parameters, in the traditional achromatic version, and in an isoluminant colour version. It was found that the illusion is much weaker with isoluminant colour stimuli than with achromatic luminance stimuli. The illusion depends on the spatial parameters of the stimulus in a way that yields an approximate scale invariance: The strength of the illusion is similar for different stimulus sizes, as long as the ratio of the width of the transition region around the edge, where luminance or colour change, to the total stimulus width is preserved. In both the achromatic and the chromatic case, the strength of the illusion decreases with increasing presentation time. The similarity of the differences between brightness and colour effects on one hand and the differences in sensitivity for colour and luminance changes in humans on the other suggests that a lack of gradient detection underlies the Craik-O'Brien-Cornsweet illusion.

Details

show
hide
Language(s):
 Dates: 1997-11
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1068/p261423
BibTex Citekey: 389
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Perception
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: London : Pion Ltd.
Pages: - Volume / Issue: 26 (11) Sequence Number: - Start / End Page: 1423 - 1430 Identifier: ISSN: 0301-0066
CoNE: https://pure.mpg.de/cone/journals/resource/954925509369