A Comparative Perspective on Three Primate Species' Responses to a Pictorial Emotional Stroop Task.

ABSTRACT: The Stroop effect describes interference in cognitive processing due to competing cognitive demands. Presenting emotionally laden stimuli creates similar Stroop-like effects that result from participants' attention being drawn to distractor stimuli. Here, we adapted the methods of a pictorial Stroop study for use with chimpanzees (N = 6), gorillas (N = 7), and Japanese macaques (N = 6). We tested all subjects via touchscreens following the same protocol. Ten of the 19 subjects passed pre-test training. Subjects who reached criterion were then tested on a standard color-interference Stroop test, which revealed differential accuracy in the primates' responses across conditions. Next, to test for an emotional Stroop effect, we presented subjects with photographs that were either positively va

SUBMITTER: Hopper LM 

PROVIDER: S-EPMC7995981 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature