 As well as beginning to assign to attention a role in the explanation of the reception of ideas, eighteenth century theories also moved towards including a role for attention in the production of behaviour. This is particularly clear in Dugald Stewart’s 1792 Elements of the Philosophy of the Human Mind. Stewart retains Locke’s view that attention has an essential role to play in determining which things get stored in memory. He adds to that view the claim that attention has a role in determining which particular memories get recalled, writing that “Some attention [is] necessary for any act of memory whatever.” (1792, 53). Stewart also claims that attention has a role in the explanation of the development and deployment of at least some skilled behaviours. The example that Stewart gives here is that of “the dexterity of jugglers” which, he says, “merits a greater degree of attention from philosophers than it has yet attracted” (62).