Fig. 1

(A) Pyramidal neurons (left) have thousands of excitatory synapses, most of which are located on active distal dendritic segments. Neuron model containing an array of independent active segments (right). (B) Error on the binary classification task described in (Poirazi and Mel 2001). Error rates are dramatically improved by increasing the underlying dimensionality and sparsity of the input representation even when the number of synapses are held constant. The behavior is an almost exact match to error probabilities as predicted by the theory