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Picture changes during blinks: Looking without seeing and seeing without looking

10 college student observers inspected normal, high quality color displays of everyday visual scenes while their eye movements were recorded. A large display change occurred each time an eye blink occurred. Display changes could either involve "Central Interest" or "Marginal Interest" locations, as determined from descriptions obtained from independent judges in a prior pilot experiment. Visual salience, as determined by luminance, color, and position of the Central and Marginal Interest changes were equalized. Results obtained were very similar to those obtained in prior experiments showing failure to detect changes occurring simultaneously with saccades, flicker, or "mudsplashes" in the visual scene: many changes were very hard to detect, and Marginal Interest changes were harder to detect than Central Interest changes. Analysis of eye movements showed that the probability of detecting a change depended on the eye's distance from the change location. For both Central and Marginal Interest changes, more than 40% of the time Ss still failed to see the changes. (PsycINFO Database Record (c) 2005 APA, all rights reserved)



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