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Related Experiment Video

Updated: Jul 13, 2026

A Method for Investigating Change Blindness in Pigeons (Columba Livia)
06:14

A Method for Investigating Change Blindness in Pigeons (Columba Livia)

Published on: September 7, 2018

Comparison and representation failures both cause real-world change blindness.

D Alexander Varakin1, Daniel T Levin, Krista M Collins

  • 1Department of Psychology and Human Development, Vanderbilt University, Nashville, TN 37240, USA. avarakin@knox.edu

Perception
|July 13, 2007
PubMed
Summary

Change blindness (CB) occurs when people miss visual changes. This study reveals that in real-world settings, CB results from both failing to represent visual information and failing to compare it across different views.

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Creating Virtual-hand and Virtual-face Illusions to Investigate Self-representation
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A Method for Investigating Change Blindness in Pigeons (Columba Livia)
06:14

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Published on: September 7, 2018

Creating Virtual-hand and Virtual-face Illusions to Investigate Self-representation
06:53

Creating Virtual-hand and Virtual-face Illusions to Investigate Self-representation

Published on: March 1, 2017

Area of Science:

  • Cognitive Psychology
  • Visual Perception
  • Human-Computer Interaction

Background:

  • Change blindness (CB) is a phenomenon where individuals fail to notice significant changes in visual scenes.
  • Previous research has been inconclusive about the underlying causes of CB in real-world incidental settings.
  • Hypotheses suggest CB may stem from representational failures, comparison failures, or both.

Purpose of the Study:

  • To investigate the specific causes of change blindness in a real-world incidental context.
  • To differentiate between representational and comparison failures contributing to CB.
  • To determine if multiple causes of CB can exist within a single experimental setting.

Main Methods:

  • Conducted two real-world experiments with stimuli featuring single-feature changes.
  • Tested recognition memory for both changing and non-changing features of the stimuli.
  • Collected confidence ratings for recognition responses to analyze potential multiple causes.

Main Results:

  • Evidence suggests that change blindness in real-world settings can arise from multiple sources.
  • Both failure to represent visual information and failure to compare information across views contribute to CB.
  • Confidence ratings supported the existence of multiple causal pathways for CB within the same task.

Conclusions:

  • Change blindness in real-world incidental settings is not attributable to a single cause.
  • Both representational and comparison deficits play a role in the occurrence of CB.
  • Understanding these multiple causes is crucial for developing effective interventions and improving visual attention research.