A New type of change blindness

smooth, isoluminant color changes are monitored on a coarse spatial scale

Erin Goddard, Colin W. G. Clifford

Research output: Contribution to journalArticle

3 Citations (Scopus)


Attending selectively to changes in our visual environment may help filter less important, unchanging information within a scene. Here, we demonstrate that color changes can go unnoticed even when they occur throughout an otherwise static image. The novelty of this demonstration is that it does not rely upon masking by a visual disruption or stimulus motion, nor does it require the change to be very gradual and restricted to a small section of the image. Using a two-interval, forced-choice change-detection task and an odd-one-out localization task, we showed that subjects were slowest to respond and least accurate (implying that change was hardest to detect) when the color changes were isoluminant, smoothly varying, and asynchronous with one another. This profound change blindness offers new constraints for theories of visual change detection, implying that, in the absence of transient signals, changes in color are typically monitored at a coarse spatial scale.
Original languageEnglish
Pages (from-to)20-1-20-8
Number of pages8
JournalJournal of Vision
Issue number5
Publication statusPublished - 2013
Externally publishedYes

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