 Nevertheless, in recent years, a number of theorists have focused more on the affective aspect of pain experiences rather than on their sensory/perceptual aspect, perhaps feeling that it is this aspect that makes pain experiences and other similar bodily sensations unique and distinctive. There are historical precedents to this kind of approach (e.g., Marshall 1892, 1894a, 1894b; Duncker 1941), but I will focus on contemporary developments of the view. (Corns 2013 contains a criticism of unitary views of pain, and recommends a multi-dimensional view. In this vein, see also Borg et al., forthcoming, for a polyeidic model of folk conception of pain.)