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. Author manuscript; available in PMC: 2017 Sep 1.
Published in final edited form as: Wiley Interdiscip Rev Cogn Sci. 2016 Jun 10;7(5):294–316. doi: 10.1002/wcs.1397

Figure 2.

Figure 2

Mean response time on a visual search task for undergraduate participants and rhesus monkeys, averaged across set sizes (5- to 30-letter arrays). For both species, response times were significantly longer when a non-target stimulus appeared in a unique color (singleton distractor). Humans but not the monkeys performed significantly faster if this pop-out distractor was preceded by warning information informing the participant of exactly what stimuli would appear in the search array. Data are from Washburn and Taglialatela24.