Fig. 1.

Environmental and neuronal setup of the system. (a) Image of square arena with landmarks. Perpendicular distances from rat’s position (gray dot) to all four walls of square arena are used as visual stimuli. (b) Examples of odors used as olfactory stimuli to the rat. Five examples (Ex. 1–Ex. 5) are shown where each box represents a different odor coming from a different location in the environment. (c) A simple feed-forward network with sensory inputs x at the input layer, connection weights w and place cells (PC) at the output layer. (d) Distribution of initial weights of the neural network (c)