This head, thanks to its configuration and combination of particular devices and mechanisms, simulates the natural head, certain psychological processes are made visible (perceptive, cognitive, etc.), the functioning of two representation systems can be observed, which are similar to those that take place in the human head: the visual system and the cognitive system. The functioning of each one of these two systems can be studied, and their corresponding contents, in a visual and graphic way. For this it has an "eye" or camera obscura with a "retina" that forms the light image and a "brain", where objects from the outside world are represented graphically. These representations can be shown or covered, for teaching purposes, by two gates in the eye and in the head, respectively.