Yoonsuck Choe and Risto Miikkulainen, The University of Texas at Austin
Contour integration is believed to occur based on lateral interaction between neurons with similar orientation tuning. The exact neural mechanisms underlying such interactions, and their developmental origins, are not well understood. This paper suggests through computational simulations that synchronized firing of neurons mediated by patchy lateral connections, formed through input-driven self-organization, can serve as such a mechanism. Furthermore, we argue that different degree of such patchy connections established during development may explain why different areas of the visual field show different degrees of contour integration in psychophysical experiments.