I found a paper by Diederik Aerts about composite concepts recognition which in spite of the mouthful of the title (General Quantum Modeling of Combining Concepts: A Quantum Field Model in Fock Space) hints at a very simple and always overlooked fact: We do not use any "obvious" logic in our actual appraisal of category membership.
Following several previous papers of his own about the use of quantum logic instead of classical (boolean) logic this one sum up the whole of his ideas on the matter and demonstrates a stunning adequacy to experimental results from cognitive psychologist James Hampton.
To quickly highlight the main point, it amounts to have the concepts somehow warp their "expected" combination (conjunctive or disjunctive) depending on the instance member to be tested for.
To this purpose Diederik Aerts deploys the full gear of Quantum Field Theory with excellent results, however...
Beside being quite an overkill this monstrous apparatus is still in need of a little help from the experimenter in the form of "appropriately choosen" quantum angles which parametrize the sought for quantum interferences.
With such finely hand tuned values Aerts quantum model of concepts combination gets an astounding zero discrepancy with respect to almost all experimental measurements of human responses.
Not only is it highly suspicious to have a "perfect match" with psychological experiments necessarily subject to measurement errors but, alas, a few unruly sample cases refuse to bow to the quantum model dictums no matter the choice of the "quantum angles", what a pity!
This otherwise outstanding piece of work suffers from a common disease, trying to forcefully shoehorn the reality into a whimsical model instead of trying to unravel more cogent causes for the observations.
From both the succesful cases (even if a bit cheated) and the failing ones it should be obvious that:
Why the heck would it have to be?
Like the Platonic Solids were to match the planets orbits?
That was by itself an excellent enlightening exercise in new concepts formation, but now would somebody please give us the actual model of concepts interactions which show up in Hampton's experiments?
Submitted by Kevembuangga [/html]