Da. Leavens, HAVING A CONCEPT SEE DOES NOT IMPLY ATTRIBUTION OF KNOWLEDGE - SOME GENERAL-CONSIDERATIONS IN MEASURING THEORIES OF MIND, Behavioral and brain sciences, 21(1), 1998, pp. 123
That organisms have a concept ''see'' does not necessarily entail that
they attribute knowledge to others or predict others' behaviors on th
e basis of inferred mental states. An alternative experimental protoco
l is proposed in which accurate prediction of the location of an exper
imenters' impending appearance is contingent upon subjects' attributio
n of knowledge to the experimenter.