ABSTRACT

In Chapter 4, I modelled Visual Perception in a highly simplified way as ‘fixed’ activations (codes) in a system consisting of an input map (IN) and three feature maps: a colour map, (C), where colour information is made explicit, a form map, (F), where the shapes are made explicit, and a position map, (P), where the positions are made explicit. That simple model, with unchanging projections and with activations firmly in place, sufficed for my explanatory purposes – the explanation of the results obtained in single-fixation experiments in Chapters 5 and 6. In real life, however, singlefixation situations with unchanging projections and with activations firmly in place never occur. Perceivers continuously make body movements, head movements, and eye movements and, as a result, the projections in the retina and in the higher centres of the visual system continuously change.