In a series of experiments examining two species of nonhuman
primates, Fagot and his colleagues (Deruelle & Fagot, 1998, Fagot &
Deruelle, 1997; Fagot & Tomonaga, 1999) have found that baboons and
chimpanzees generally exhibit an effect opposite of humans, showing a local
precedence effect in which higher accuracy or faster RTs are recorded with local
relevant displays, especially with sparse element arrangements. Humans tested
with the same stimuli as the primates revealed the standard global precedence
effect.