Figure 4.

Simulation of synaptic populations from decoder neuron weight distributions. (A) Example weight distribution for a single decoder neuron tuned to 0^o (left). Ordinates are orientation preference, restricted between −90^o and 90^o. The dashed line separates excitatory (positive) and inhibitory (negative) weights. Excitatory weight distribution over the input population is transformed into a frequency distribution, whereby greater amplitude equates to a greater frequency of occurrence (right). (B) Example simulated synaptic population (n = 100 spines) from the weight distribution in (A). Shown are the orientation tuning curves of each simulated synapse (normalized).