Learned connectivity with DVS stimulus.

Abstract

(a) Long tailed, approximately log-normal, distributions of synaptic strengths. Black curves are excitatory synapses from the stimulus population. Red curves are excitatory synapses from the excitatory population. Blue curves are inhibitory synapses from the inhibitory population. Solid lines indicates synapses with excitatory postsynaptic neurons, dotted lines indicate synapses with inhibitory postsynaptic neurons. (b) Receptive fields (connection strengths from the stimulus to individual neurons) of six excitatory neurons displaying learned selectivity for different features. Red indicates strong synapses, blue indicates weak synapses. Synaptic strengths have been normalized for each neuron.</p