A final result is that parallel stripes of active and quiescent neurons constitute elementary excitations of the model. Due to the retino-cortical map, some of the cortical stripe patterns should appear as spirals on the retina. This is the question we will focus on. In so doing we can, and will, verify the above hypothesis. In the context of our model we conclude that several, but not all, form constants occur as spontaneous excitations.
Spirals are inconsistent with the parallel stripes referred to above.
Below we will clear the situation and show that there is in fact a sequence of al least four scenarios. In so doing we will avoid any external input and exploit several neural characteristics which have been incorporated into our own spike response model.