Behavioral and Brain Sciences

Short Communication

Object recognition is not predication

Jean-Louis Dessalles a1 and Laleh Ghadakpour a2
a1 ParisTech-ENST, F-75013 Paris, France
a2 Ecole Polytechnique, 75005 Paris, France


Predicates involved in language and reasoning are claimed to radically differ from categories applied to objects. Human predicates are the cognitive result of a contrast between perceived objects. Object recognition alone cannot generate such operations as modification and explicit negation. The mechanism studied by Hurford constitutes at best an evolutionary prerequisite of human predication ability.