Method for estimating output neuron spikes based on input-output spike data
AssigneeUniversity of Southern California
InventorsDong Song, Brian S. Robinson, Theodore W. Berger
Life of this patent
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Abstract
A method for estimating output neuron spikes based on input-output spike data that includes input spike data and corresponding output spike data includes formulating, using a controller, a weight value that characterizes plastic properties of a neuron based on the input-output spike data. The method further includes receiving, by the controller, an input spike train. The method further includes estimating, using the controller, an output spike train that corresponds to the input spike train by applying the weight value to a feedforward kernel that estimates the output spike train based on the input spike train and the weight value.
Claims20
A method for estimating output neuron spikes based on input-output spike data that includes input spike data and corresponding output spike data, comprising:
- estimating functional spike-timing-dependent plasticity (STDP) parameters, comprising amplitude functions and STDP induction functions, from the input-output spike data, wherein the input-output spike data comprises spike timing, wherein the amplitude function is based on the interval between a presynaptic spike and a post synaptic spike, wherein the induction functions describe an induction time course of plasticity and are respectively scaled by the amplitude functions;
- determining at least one weight value based on the STDP parameters;
- formulating, using a controller, a spiking neuron model structure based on the estimated functional spike-timing-dependent plasticity (STDP) parameters, wherein the spiking neuron model comprises the at least one weight value that characterizes plastic properties including at least one neural functional connectivity strength of a neuron based on the functional STDP parameters;
- receiving, by the controller, at least one input spike train;
- and
- estimating, using the controller, at least one output spike train that corresponds to the at least one input spike train by applying the at least one weight value to a feedforward kernel that estimates the at least one output spike train based on the at least one input spike train and the at least one weight value.
A method for estimating output neuron spiking activity based on input-output spike data that includes input spike data and corresponding output spike data, comprising:
- formulating a computational framework for estimating functional spike-timing-dependent plasticity (STDP) parameters, comprising:
- formulating a flexible spiking neuron model structure with STDP including stationary functions that characterize stationary properties of a neuron and plastic functions that characterize plastic properties of the neuron, the plastic properties including at least one neural functional connectivity strength;
- observing input-output spike data that includes input spike data and corresponding output spike data;
- estimating the functional STDP parameters, comprising amplitude functions and STDP induction functions, based on the input-output spike data, wherein the input-output spike data comprises spike timing, wherein the amplitude function is based on the interval between a presynaptic spike and a post synaptic spike, wherein the induction functions describe an induction time course of plasticity and are respectively scaled by the amplitude functions;
- determining at least one weight value based on the STDP parameters;
- formulating an estimation technique and applying the estimation technique using the input-output spike data to identify parameters that increase a likelihood of observing output spiking activity;
- providing at least one output spike train using the identified parameters from the estimation technique that involves use of a feedforward kernel.
A system for estimating output neuron spikes, comprising:
- an input device or an input port configured to receive input-output spike data comprising spike timing that includes input spike data and corresponding output spike data that is used for creating a spiking neuron model structure with adjustable functional spike-timing-dependent plasticity (STDP) parameters, comprising amplitude functions and STDP induction functions, wherein the amplitude function is based on the interval between a presynaptic spike and a post synaptic spike, wherein the induction functions describe an induction time course of plasticity and are respectively scaled by the amplitude functions;
- and
- a controller configured to create the spiking neuron model structure by:
- formulating a weight value that characterizes plastic properties including at least one neural functional connectivity strength of the neuron based on functional STDP parameters which are estimated based on the input-output spike data,
- receiving an input spike train, and
- estimating an output spike train that corresponds to the input spike train by applying the weight value to a feedforward kernel that estimates the output spike train based on the input spike train and the weight value.
Dependencies are inferred from the claim text.