 One may further ask whether one can functionally defined different types of body representations. One single body representation does not seem to suffice to account for the variety of bodily disorders and for the variety of aspects of bodily awareness. There needs to be more, but how many? In 1911, Head and Holmes present the first taxonomy of the representations of the body. In addition to what they call a body image, which constitutes the conscious percept of the body, they distinguish two types of unconscious representations, called body schemata: one records every new posture or movement whereas the other maps the surface of the body on which sensations are localized. However, for a long time, the terms of body schema and body image had been used interchangeably (see Schilder 1935, for instance), whereas the fine-grained distinction between the two types of body schema had almost completely disappeared. Nonetheless, since the eighties there has been a renewal of interest for distinguishing various types of body representation (O’Shaughnessy 1980; Paillard 1999; Gallagher 1986), although there is little agreement, neither on the way to individuate the distinct types of body representations, nor on their precise number. Here is a sample of the characteristics that have been used so far to distinguish them: