A Proto-Architecture for Innate Directionally Selective Visual Maps
Figure 8
Direction Preference maps for reduced lateral inhibition.
In both cases reducing lateral inhibition has almost completely disrupted the characteristic patchy structure seen in previous figures. When a 5×5 connection field is present (a) there are some patches of the same preference and topological arrangement of patches of similar preference but nowhere near as structured as the intact case. With full afferent connectivity (b) there is complete map disruption: most neurons are active for all of the motion directions and selectivity is very low (see Table 5).