Fig. 1

Search task stimuli. a Food and toy search objects. b Task-irrelevant patterned runic symbols (one set of three symbols make up a “triplet”: ABC, DEF, GHI) and randomly presented runic symbols
Search task stimuli. a Food and toy search objects. b Task-irrelevant patterned runic symbols (one set of three symbols make up a “triplet”: ABC, DEF, GHI) and randomly presented runic symbols