 that to experience something as having a certain [P-shape] is to experience it as affording a range of possible movements; rather I want to suggest that one experiences it as having a certain P-shape, and so as affording possible movements, only insofar as, in encountering it, one is able to draw on one’s appreciation of the sensorimotor patterns mediating (or that might be mediating) your relation to it. (2004: 90)