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Open Access Publications from the University of California

Interactive Models of Cognitive Abilities of monkeys and Humans (

  • Author(s): Thomas, Roger K
  • et al.


squirrel monkey and human data were complementary in lidating the hypothesized difficulty of oddity and sameness-difference concept hierarchies. Second,both were used to refute the hypothesis that numerousness discriminations (e.g., 7 versus 8 items) require counting and to support the hypothesis that such judgments involve a prototype matching process. 


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