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Object knowledge modulates colour appearance

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journal contribution
posted on 2023-06-08, 12:12 authored by Christoph Witzel, Hanna Valkova, Thorsten Hansen, Karl R Gegenfurtner
We investigated the memory colour effect for colour diagnostic artificial objects. Since knowledge about these objects and their colours has been learned in everyday life, these stimuli allow the investigation of the influence of acquired object knowledge on colour appearance. These investigations are relevant for questions about how object and colour information in high-level vision interact as well as for research about the influence of learning and experience on perception in general. In order to identify suitable artificial objects, we developed a reaction time paradigm that measures (subjective) colour diagnosticity. In the main experiment, participants adjusted sixteen such objects to their typical colour as well as to grey. If the achromatic object appears in its typical colour, then participants should adjust it to the opponent colour in order to subjectively perceive it as grey. We found that knowledge about the typical colour influences the colour appearance of artificial objects. This effect was particularly strong along the daylight axis.

History

Publication status

  • Published

File Version

  • Published version

Journal

i-Perception

ISSN

2041-6695

Publisher

Pion

Issue

1

Volume

2

Page range

13-49

Department affiliated with

  • Psychology Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2012-08-07

First Open Access (FOA) Date

2012-08-07

First Compliant Deposit (FCD) Date

2012-08-07

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