neuroidnet.ntr
Class PeakerNeuroid

java.lang.Object
  |
  +--neuroidnet.ntr.Neuroid
        |
        +--neuroidnet.ntr.SRMNeuroid
              |
              +--neuroidnet.ntr.PeakerNeuroid

All Implemented Interfaces:

Expressive, Input, Serializable, Simulation

public class PeakerNeuroid

extends SRMNeuroid

Intermediate neuroid augmenting SRMNeuroid before proceeding into a more completely liquid-state machine neuroid.

PeakerNeuroid simply transforms from the continuous state operation of the SRM to Valiant's abstraction. This is done by invoking the underlying SRMNeuroid (apparently mistakenly built following Valiant's approach too closely) finite state machine whenever the membrane potential has a max plateau. The intention here is to make the peaks in the membrane potential of the continuous model correspond to the sample times of the discrete model.

State: works

Todo: There is no threshold check which makes it susceptible to criticism.

Created: Tue May 14 23:39:07 2002

Modified: $Date: 2003/04/28 03:06:19 $

Version:

$Revision: 1.2 $ for this file.

Author:

Cengiz Gunay

See Also:

Serialized Form

Nested Class Summary

protected class

PeakerNeuroid.Mode

Nested classes inherited from class neuroidnet.ntr.SRMNeuroid

Nested classes inherited from class neuroidnet.ntr.Neuroid

Neuroid.SynapseActivityTask

Field Summary

(package private) double	dddPotential
(package private) double	ddPotential
(package private) double	dPotential
(package private) double	dPotentialOld

Fields inherited from class neuroidnet.ntr.SRMNeuroid

correctTimesRequired, externalCurrent, refractoryTimeConstant, sumOfCurrentWeights

Fields inherited from class neuroidnet.ntr.Neuroid

area, concept, debug, id, mode, potential, profile, spikeTrain, synapses, timeLastFired, watch

Constructor Summary

PeakerNeuroid(Area area)
TODO: Initialize mode? Does the polymorphism work from super class to use Mode defined here? [No]

PeakerNeuroid(Area area, double initialThreshold, double refractoryTimeConstant)

Method Summary

void	step() Calculates up to the third derivative of the membrane potential to detect max plateaus.

Methods inherited from class neuroidnet.ntr.SRMNeuroid

calculatePotential, defaultPeriod, fire, getRefractoryTimeConstant, refractoriness, setRefractoryTimeConstant

Methods inherited from class neuroidnet.ntr.Neuroid

addSynapse, dumpData, getArea, getConcept, getId, getMode, getProfile, getProperties, getSpikeTrain, getStatus, getSynapses, getTimeLastFired, init, isDebug, isWatch, makeConcept, setArea, setDebug, setMode, setProfile, setSpikeTrain, setWatch, stop, toString

Methods inherited from class java.lang.Object

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

Field Detail

dPotential

double dPotential

dPotentialOld

double dPotentialOld

ddPotential

double ddPotential

dddPotential

double dddPotential

Constructor Detail

PeakerNeuroid

public PeakerNeuroid(Area area)

TODO: Initialize mode? Does the polymorphism work from super class to use Mode defined here? [No]

PeakerNeuroid

public PeakerNeuroid(Area area,
                     double initialThreshold,
                     double refractoryTimeConstant)

Method Detail

step

public void step()

Calculates up to the third derivative of the membrane potential to detect max plateaus.

TODO: Call super.step()? Make super.step() compatible with this first.

TODO: try to unify with neuroid.step

Specified by:

step in interface Simulation

Overrides:

step in class Neuroid

See Also:

Synapse