Full Idea
The most important property of prototype theories is that cognitive processes are assumed to involve the computation of the similarity between prototypes and other representations.
Gist of Idea
Prototype theories are based on computation of similarities with the prototype
Source
Edouard Machery (Doing Without Concepts [2009], 4.2.3)
Book Reference
Machery,Edouard: 'Doing Without Concepts' [OUP 2009], p.90
A Reaction
[He cites J.A.Hampton 1998, 2006] This presumably suits theories of the mind as largely computational (e.g. Fodor's account, based on the Turing machine).