Attention to distinguishing features in object recognition: An interactive-iterative framework

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This article advances a framework that casts object recognition as a process of discrimination between alternative object identities, in which top-down and bottom-up processes interact—iteratively when necessary—with attention to distinguishing features playing a critical role. In two experiments, observers discriminated between different types of artificial fish. In parallel, a secondary, variable-SOA visual-probe detection task was used to examine the dynamics of visual attention. In Experiment 1, the fish varied in three distinguishing features: one indicating the general category (saltwater, freshwater), and one of the two other features indicating the specific type of fish within each category. As predicted, in the course of recognizing each fish, attention was allocated iteratively to the distinguishing features in an optimal manner: first to the general category feature, and then, based on its value, to the second feature that identified the specific fish. In Experiment 2, two types of fish could be discriminated on the basis of either of two distinguishing features, one more visually discriminable than the other. On some of the trials, one of the two alternative distinguishing features was occluded. As predicted, in the course of recognizing each fish, attention was directed initially to the more discriminable distinguishing feature, but when this feature was occluded, it was then redirected to the less discriminable feature. The implications of these findings, and the interactive-iterative framework they support, are discussed with regard to several fundamental issues having a long history in the literatures on object recognition, object categorization, and visual perception in general.

Original languageEnglish
Pages (from-to)228-244
Number of pages17
StatePublished - Jan 2018

Bibliographical note

Funding Information:
This research was supported by grant 1110/10 from the Israel Science Foundation to Ruth Kimchi and Morris Goldsmith, and comprises part of Orit Baruch’s Ph.D dissertation, submitted to the University of Haifa. Facilities for conducting the research were provided by the Institute of Information Processing and Decision Making and by the Max Wertheimer Minerva Center for Cognitive Processes and Human Performance. Appendix A

Publisher Copyright:
© 2017 Elsevier B.V.


  • Bottom-up processes
  • Distinguishing features
  • Interactive
  • Iterative
  • Object categorization
  • Object recognition
  • Top-down processes
  • Visual attention

ASJC Scopus subject areas

  • Language and Linguistics
  • Experimental and Cognitive Psychology
  • Developmental and Educational Psychology
  • Linguistics and Language
  • Cognitive Neuroscience


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