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A measurement theory of illusory conjunctions.

Authors
  • Prinzmetal, William
  • Ivry, Richard B
  • Beck, Diane
  • Shimizu, Naomi
Type
Published Article
Journal
Journal of experimental psychology. Human perception and performance
Publication Date
Apr 01, 2002
Volume
28
Issue
2
Pages
251–269
Identifiers
PMID: 11999853
Source
Medline
License
Unknown

Abstract

Illusory conjunctions refer to the incorrect perceptual combination of correctly perceived features, such as color and shape. Research on the phenomenon has been hampered by the lack of a measurement theory that accounts for guessing features, as well as the incorrect combination of correctly perceived features. Recently, several investigators have suggested using multinomial models as a tool for measuring feature integration. The authors examined the adequacy of these models in 2 experiments by testing whether model parameters reflect changes in stimulus factors. In a third experiment, confidence ratings were used as a tool for testing the model. Multinomial models accurately reflected both variations in stimulus factors and observers' trial-by-trial confidence ratings.

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