Cooperative Neural Processes in Amphibian Visual Prey Recognition

One of the main obstacles against the development of a theory of vision is the idea that vision is some kind of internal representation of the external world. Unavoidably this idea suggests that the visual system does not operate very differently from a camera, a mapping machine, or a series of such machines. This thinking, then, inevitably generates the problem who or what instance does look at the final image produced by the mapping machinery. The mapping itself cannot be vision since this would imply that an ordinary camera can see. A camera is able to reproduce an external distribution of light but it lacks any elements of a cognitive process, being essential for visual perception.