 While experimental and other behavioral evidence can help to more directly characterize a capacity and identify its associated tasks, many theoretically important issues have to do with determining what kind of psychological mechanisms should be posited to account for them. Theorists defending different views might hypothesize different mechanisms that underpin a particular capacity, or give different accounts of how a mechanism performs its function. They can also agree or disagree about how the relevant mechanisms are organized, developing different accounts of their proprietary algorithms, and the types of causal and informational links each bears to each other and to other elements of a person’s overall psychological economy (perceptual systems, short term memory, action production systems, etc.).