“Aesthetic perception involves changing frames of reference in order to see the hidden logic and orderliness behind what at first may seem random and strange. One of the selective pressures behind the development of the arts may be as a mechanism for developing mental agility; a way of rehearsing the capacity to change a mindset in the face of novelty and surprise. This leads directly to the mental shake-up which occurs whenever we are faced with fairly radical departures from the norm in terms of art and architecture: ‘the shock of the new’. It is this protean factor which enables us to adjust our mental models to accommodate such new evocations of art and architecture. As such it is an essential component of the fabric of aesthetic perception.”