Shunting inhibition for multiplication in neuromorphic architectures
AssigneeNational Technology & Engineering Solutions of Sandia, LLC
InventorsSuma George Cardwell, Frances S. Chance
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Abstract
A method of shunting inhibition mechanism in a neuromorphic circuit is provided. The method comprises inputting excitatory signals to an artificial neuron soma having a resting membrane potential. Shunting conductances are input to the artificial neuron soma to multiply response to the excitatory signals in the artificial neuron soma, wherein the shunting conductances have a reversal potential approximately equal to the resting membrane potential of the artificial neuron, and wherein increasing the shunting conductances increases membrane conductance of the artificial neuron soma.
Claims20
A method of shunting inhibition in a neuromorphic circuit, the method comprising:
- inputting excitatory signals to an artificial neuron soma having a resting membrane potential;
- and
- inputting shunting conductances to the artificial neuron soma to multiply response to the excitatory signals in the artificial neuron soma, wherein the shunting conductances have a reversal potential approximately equal to the resting membrane potential of the artificial neuron, and wherein increasing the shunting conductances increases membrane conductance of the artificial neuron soma.
A neuromorphic circuit, comprising:
- an artificial neuron soma having a resting membrane potential;
- a number of excitatory signals input to the artificial neuron soma;
- and
- a number of shunting conductances input to the artificial neuron soma, wherein the shunting conductances multiplicatively scale the excitatory signals in the artificial neuron soma, and wherein the shunting conductances have a reversal potential approximately equal to the resting membrane potential of the artificial neuron, and wherein increasing the shunting conductances increases membrane conductance of the artificial neuron soma.
Dependencies are inferred from the claim text.