 Proponents of (1) typically invoke   functionalism to analyze A*. Each psychological relation A* is associated with a distinctive functional role: a role that S plays within your mental activity just in case you bear A* to S. When specifying what it is to believe* S, for example, we might mention how S serves as a basis for inferential reasoning, how it interacts with desires to produce actions, and so on. Precise functional roles are to be discovered by scientific psychology. Following Schiffer (1981), it is common to use the term “belief-box” as a placeholder for the functional role corresponding to belief*: to believe* S is to place S in your belief box. Similarly for “desire-box”, etc.