ca.nengo.model.plasticity.impl
Class STDPTermination

java.lang.Object
  ca.nengo.model.impl.EnsembleTermination
      ca.nengo.model.plasticity.impl.PlasticEnsembleTermination
          ca.nengo.model.plasticity.impl.STDPTermination

All Implemented Interfaces:

Resettable, Termination, java.io.Serializable, java.lang.Cloneable

public class STDPTermination
extends PlasticEnsembleTermination

A PlasticTermination implementing a PlasticityRule that accepts spiking input.

Spiking input must be dealt with in order to run learning rules in a spiking SimulationMode. Spiking input is also the only way to simulate spike-timing-dependent plasticity.

See Also:

Serialized Form

Field Summary

Fields inherited from class ca.nengo.model.plasticity.impl.PlasticEnsembleTermination

myLearning, myLearningRate, myOriginName, myOutput

Constructor Summary

STDPTermination(Node node, java.lang.String name, LinearExponentialTermination[] nodeTerminations)

Method Summary

PlasticEnsembleTermination	clone()
void	reset(boolean randomize)
void	setOriginState(java.lang.String name, InstantaneousOutput state, float time)
void	updateTransform(float time, int start, int end)

Methods inherited from class ca.nengo.model.plasticity.impl.PlasticEnsembleTermination

getInput, getLearning, getLearningRate, getOriginName, getOutputs, getTransform, saveTransform, setLearning, setLearningRate, setOriginName, setTransform

Methods inherited from class ca.nengo.model.impl.EnsembleTermination

getDimensions, getModulatory, getName, getNode, getNodeTerminations, getTau, setModulatory, setTau, setValues

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

STDPTermination

public STDPTermination(Node node,
                       java.lang.String name,
                       LinearExponentialTermination[] nodeTerminations)
                throws StructuralException

Parameters:

node - The parent Node

name - Name of this Termination

nodeTerminations - Node-level Terminations that make up this Termination. Must be all LinearExponentialTerminations

Throws:

StructuralException - If dimensions of different terminations are not all the same

Method Detail

setOriginState

public void setOriginState(java.lang.String name,
                           InstantaneousOutput state,
                           float time)
                    throws StructuralException

Overrides:

setOriginState in class PlasticEnsembleTermination

Parameters:

name - Name of Origin from which postsynaptic activity is drawn

state - State of named origin

time - Current time

Throws:

StructuralException - if Origin is not set

reset

public void reset(boolean randomize)

Specified by:

reset in interface Resettable

Overrides:

reset in class PlasticEnsembleTermination

Parameters:

randomize - True indicates that the object should be reset to a randomly selected initial state (the object must be aware of the distribution from which to draw from). False indicates that the object should be reset to a fixed initial state (which it must also know). Some objects may not support randomization of the initial state, in which case a fixed state will be used in either case.

See Also:

Resettable.reset(boolean)

updateTransform

public void updateTransform(float time,
                            int start,
                            int end)
                     throws StructuralException

Specified by:

updateTransform in class PlasticEnsembleTermination

Parameters:

time - Current time

start - The start index of the range of transform values to update (for multithreading)

end - The end index of the range of transform values to update (for multithreading)

Throws:

StructuralException - if

clone

public PlasticEnsembleTermination clone()
                                 throws java.lang.CloneNotSupportedException

Specified by:

clone in interface Termination

Overrides:

clone in class PlasticEnsembleTermination

Returns:

Valid clone

Throws:

java.lang.CloneNotSupportedException - if clone can't be made