AnimatLab  2
Test
IntegrateFireSim::Neuron Class Reference

Integrate and fire neuron model. More...

#include <Neuron.h>

+ Inheritance diagram for IntegrateFireSim::Neuron:
+ Collaboration diagram for IntegrateFireSim::Neuron:

Public Member Functions

 Neuron ()
 Default constructor. More...
 
virtual ~Neuron ()
 Destructor. More...
 
void AccomodationTimeConstant (double dVal)
 Sets the accomodation time constant. More...
 
double AccomodationTimeConstant ()
 Gets the accomodation time constant. More...
 
virtual void AddExternalI (float fltVal)
 Adds to the external current. More...
 
virtual void AddExternalNodeInput (int iTargetDataType, float fltInput)
 Adds an external node input. More...
 
virtual bool AddItem (const std::string &strItemType, const std::string &strXml, bool bThrowError=true, bool bDoNotInit=false)
 Adds a new object to this parent. More...
 
void AHPAmplitude (double dVal)
 Sets the after-hyperpolarizing conductance amplitude. More...
 
double AHPAmplitude ()
 Gets the after-hyperpolarizing conductance amplitude. More...
 
void AHPTimeConstant (double dVal)
 Sets the after-hyperpolarizing time constant. More...
 
double AHPTimeConstant ()
 Gets the after-hyperpolarizing time constant. More...
 
void BurstGMaxCa (double dVal)
 Sets the burst maximum calcium conductance. More...
 
double BurstGMaxCa ()
 Gets the burst maximum calcium conductance. More...
 
void BurstHTimeConstant (double dVal)
 Sets the burst inactivation time constant. More...
 
double BurstHTimeConstant ()
 Gets the burst inactivation time constant. More...
 
void BurstInitAtBottom (bool bVal)
 Sets the burst inactivation time constant. More...
 
bool BurstInitAtBottom ()
 Gets the burst inactivation time constant. More...
 
void BurstMTimeConstant (double dVal)
 Gets the burst activation time constant. More...
 
double BurstMTimeConstant ()
 Gets the burst activation time constant. More...
 
void BurstSh (double dVal)
 Sets the burst inactivation slope. More...
 
double BurstSh ()
 Gets the burst inactivation slope. More...
 
void BurstSm (double dVal)
 Sets the burst Activation slope. More...
 
double BurstSm ()
 Gets the burst Activation slope. More...
 
void BurstVh (double dVal)
 Sets the burst inactivation mid point. More...
 
double BurstVh ()
 Gets the burst inactivation mid point. More...
 
void BurstVm (double dVal)
 Sets the burst activation mid point. More...
 
double BurstVm ()
 Gets the burst activation mid point. More...
 
void CalcUpdate (IntegrateFireNeuralModule *lpNS)
 Calculates the update during a time step. More...
 
void CalcUpdateFinal (IntegrateFireNeuralModule *lpNS)
 Calculates the final update during a step. More...
 
virtual bool Enabled ()
 Tells whether this node is enabled. More...
 
virtual void Enabled (bool bValue)
 Enables the node. More...
 
virtual int FindIonChannelListPos (std::string strID, bool bThrowError=true)
 Searches for an ion channel with the specified ID and returns its position in the array. More...
 
virtual float * GetDataPointer (const std::string &strDataType)
 Returns a float pointer to a data item of interest in this object. More...
 
double GetMemPot ()
 Gets the membrane potential. More...
 
double GetRestingPot ()
 Gets the resting potential. More...
 
bool GetSpike ()
 Gets whether a spike occured. More...
 
double GetThresh ()
 Gets the votlge threshold. More...
 
bool GetZapped ()
 Gets if the neuron is disabled. More...
 
void IncNonSpikingSynCond (double cond)
 Increment non-spiking syn conductance. More...
 
void IncNonSpikingSynCurr (double cur)
 Increment non-spiking syn current. More...
 
void IncrementStim (double stim)
 Increments the current stimulus. More...
 
void InElectricalSynapseCond (double cond)
 Increments electrical synapse conductance. More...
 
void InElectricalSynapseCurr (double cur)
 Increments electrical synapse current. More...
 
void InitialThreshold (double dVal)
 Sets the initial threshold. More...
 
double InitialThreshold ()
 Gets the initial threshold. More...
 
CStdPtrArray< IonChannel > * IonChannels ()
 Gets the ion channels. More...
 
virtual void Load (CStdXml &oXml)
 
int NeuronID ()
 Gets the neuron ID. More...
 
void NeuronID (int iID)
 Sets the Neuron ID. More...
 
void PostCalc (IntegrateFireNeuralModule *lpNS)
 Called when simulation is ended. More...
 
void PreCalc (IntegrateFireNeuralModule *lpNS)
 Initialization routine. More...
 
virtual void QueryProperties (CStdPtrArray< TypeProperty > &aryProperties)
 
void RelativeAccomodation (double dVal)
 Sets the relative accomodation value. More...
 
double RelativeAccomodation ()
 Gets the relative accomodation. More...
 
virtual bool RemoveItem (const std::string &strItemType, const std::string &strID, bool bThrowError=true)
 Removes a child item from this parent. More...
 
virtual void ResetSimulation ()
 Resets the simulation back to time 0. More...
 
void RestingPotential (double dVal)
 Sets the resting potential. More...
 
double RestingPotential ()
 Gets the resting potential. More...
 
virtual bool SetData (const std::string &strDataType, const std::string &strValue, bool bThrowError=true)
 Set a variable based on a string data type name. More...
 
virtual void SetSystemPointers (Simulator *lpSim, Structure *lpStructure, AnimatSim::Behavior::NeuralModule *lpModule, Node *lpNode, bool bVerify)
 
void Size (double dVal)
 Sets the size of the neuron. More...
 
double Size ()
 Gets the size of the neuron. More...
 
void TimeConstant (double dVal)
 Sets the time constant. More...
 
double TimeConstant ()
 Gets the time constant. More...
 
void TonicNoise (double dblVal)
 
double TonicNoise ()
 
void TonicStimulus (double dblVal)
 Sets the neurons tonic stimulus current. More...
 
double TonicStimulus ()
 Gets the tonic stimulus current of the neuron. More...
 
virtual void VerifySystemPointers ()
 Verify that system pointers have been set correctly. More...
 
- Public Member Functions inherited from AnimatSim::Node
 Node ()
 Default constructor. More...
 
virtual ~Node ()
 Destructor. More...
 
virtual void Copy (CStdSerialize *lpSource)
 
virtual int GetTargetDataTypeIndex (const std::string &strDataType)
 Used to convert a string target data type into an integer index. More...
 
virtual void Kill (bool bState=true)
 Kills. More...
 
virtual void QueryProperties (CStdPtrArray< TypeProperty > &aryProperties)
 Queries this object for a list of properties that can be changed using SetData. More...
 
virtual void SetSystemPointers (Simulator *lpSim, Structure *lpStructure, NeuralModule *lpModule, Node *lpNode, bool bVerify)
 Sets the system pointers. More...
 
- Public Member Functions inherited from AnimatSim::AnimatBase
 AnimatBase ()
 Constructs an AnimatBase object. More...
 
virtual ~AnimatBase ()
 Destroys the AnimatBase object.. More...
 
virtual void AfterResetSimulation ()
 Called after a simulation reset for some objects. More...
 
virtual long CalculateSnapshotByteSize ()
 Calculates the snapshot byte size. More...
 
virtual NeuralModuleGetNeuralModule ()
 Gets the neural module. More...
 
virtual NodeGetNode ()
 Gets the node. More...
 
virtual SimulatorGetSimulator ()
 Gets the simulator pointer. More...
 
virtual StructureGetStructure ()
 Gets the structure for this node. More...
 
virtual bool HasProperty (const std::string &strName)
 Queries this object if it has a property with the given name. More...
 
virtual std::string ID ()
 Gets the unique GUID ID of this object. More...
 
virtual void ID (std::string strValue)
 Sets the unique GUID ID of the object. More...
 
virtual void Initialize ()
 Initializes this object. More...
 
virtual void Load (StdUtils::CStdXml &oXml)
 Loads the item using an XML data packet. More...
 
virtual void LoadKeyFrameSnapshot (byte *aryBytes, long &lIndex)
 Loads a key frame snapshot. More...
 
virtual std::string Name ()
 Gets the name of this object. More...
 
virtual void Name (std::string strValue)
 Sets the name of the object. Blank is acceptable. More...
 
virtual AnimatPropertyType PropertyType (const std::string &strName)
 
virtual void ReInitialize ()
 Re-initialize this object. More...
 
virtual void Reset ()
 Resets this object. More...
 
virtual void RigidBodyAdded (std::string strID)
 
virtual void RigidBodyRemoved (std::string strID)
 
virtual void SaveKeyFrameSnapshot (byte *aryBytes, long &lIndex)
 Saves a key frame snapshot. More...
 
virtual bool Selected ()
 Tells if this items is selected or not. More...
 
virtual void Selected (bool bValue, bool bSelectMultiple)
 Selects this object. More...
 
virtual bool SetData (const std::string &strDataType, const float fltValue, bool bThrowError=true)
 Set a variable based on a string data type name. More...
 
virtual bool SetData (const std::string &strDataType, const long lValue, bool bThrowError=true)
 Set a variable based on a string data type name. More...
 
virtual void SimPausing ()
 Called just before the simulation pauses. More...
 
virtual void SimStarting ()
 Called just before the simulation starts. More...
 
virtual void SimStopping ()
 Called just before the simulation stops. More...
 
virtual void StepSimulation ()
 Step the simulation for this object. More...
 
virtual void TimeStepModified ()
 Notification method that the time step modified has been modified. Objects should recalculate any slice times as needed. More...
 
virtual std::string Type ()
 returns the string type name of this object. More...
 
virtual void Type (std::string strValue)
 Sets the class type for this object. More...
 
virtual void VisualSelectionModeChanged (int iNewMode)
 Visual selection mode changed. More...
 

Protected Member Functions

virtual void AddIonChannel (std::string strXml, bool bDoNotInit)
 Adds an ion channel from an xml packet definition. More...
 
void CalculateFiringFreq (IntegrateFireNeuralModule *lpNS)
 Calculates the firing freq. More...
 
IonChannelFindIonChannel (std::string strID, bool bThrowError)
 Searches for an ion channel with the matching ID. More...
 
virtual IonChannelLoadIonChannel (CStdXml &oXml)
 Loads an ion channel. More...
 
virtual void RemoveIonChannel (std::string strID, bool bThrowError=true)
 Removes the ion channel. More...
 
- Protected Member Functions inherited from AnimatSim::Node
virtual void UpdateData ()
 Updates any reporting data for this time step. More...
 

Protected Attributes

CStdArray< double > m_aryDG
 exponential decline factor in syn G.
 
CStdArray< double > m_aryFacilD
 exponential decline factor in facilitation.
 
CStdArray< double > m_aryFacilSponSynG
 facilitated initial g increase caused by spontaneous input
 
CStdPtrArray< IonChannelm_aryIonChannels
 The array of ion channels.
 
CStdArray< double > m_aryNextSponSynTime
 Time to next spontaneous occurrence of this syn type.
 
CStdArray< double > m_arySynG
 Current conductance of each synaptic type.
 
CStdArray< double > m_aryTonicInputPeriod
 An array of tonic inputs that can be applied to the neuron.
 
CStdArray< int > m_aryTonicInputPeriodType
 An array of tonic input types that can be applied to the neuron.
 
bool m_bBurstInitAtBottom
 
bool m_bSpike
 true if spike occured.
 
bool m_bZapped
 Sets whether the neuron is disabled or not.
 
double m_dAccomTimeConst
 The accommodation time constant.
 
double m_dAHPAmp
 The after-hyperpolarizing conductance amplitude.
 
double m_dAHPTimeConst
 The after-hyperpolarizing time constant.
 
double m_dCm
 The membrane capacitance.
 
double m_dDCTH
 exponential decline working factor for threshold accommodation
 
double m_dDGK
 exponential decline factor for AHP
 
double m_dElecSynCond
 The electrical synaptic condutance.
 
double m_dElecSynCur
 The electrical synaptic current.
 
double m_dGK
 cummulative amplitude of AHP conductance
 
double m_dGMaxCa
 The maximum conductance of the calcium current.
 
double m_dGTot
 cummulative total contuctance
 
double m_dH
 The inactivation variable.
 
double m_dHTimeConst
 Inactivation time constant the calcium current.
 
double m_dInitialThresh
 The initial voltage threshold for the neuron.
 
double m_dM
 The activation variable.
 
double m_dMemPot
 The membrane potential.
 
double m_dMTimeConst
 activation time constant the calcium current.
 
double m_dNewMemPot
 The next membrane potential.
 
double m_dNoise
 The noise being applied to the membrane.
 
double m_dNonSpikingSynCond
 The non-spiking synaptic condutance.
 
double m_dNonSpikingSynCur
 The non-spiking synaptic current.
 
double m_dRelativeAccom
 The amount of relative accommodation. This ranges from 0 to 1.
 
double m_dRestingPot
 The resting potential of the neuron.
 
double m_dSH
 Inactivation slope of the calcium current.
 
double m_dSize
 Size of the neuron. This is essentially equivalent to the membrane conductance.
 
double m_dSM
 Activation slope of the calcium current.
 
double m_dStim
 The stimulus current.
 
double m_dThresh
 The voltage threshold.
 
double m_dTimeConst
 The time constant for the neuron.
 
double m_dToniCurrentStimulusulus
 A tonic current stimulus that can be applied to the neuron.
 
double m_dVH
 Inactivation mid point of the calcium current.
 
double m_dVM
 Activation mid point of the calcium current.
 
float m_fltAdapterI
 The adapter current.
 
float m_fltAdapterMemoryI
 The adapter current memory. This is used to allow datacharts to track current input from adapters.
 
float m_fltChannelI
 The ioin channel current.
 
float m_fltChannelMemoryI
 The ion channel current memory. This is used to allow datacharts to track current input from ion channels.
 
float m_fltElecSynCurMemory
 The electrical synaptic current memory. Used for reporting purposes.
 
float m_fltEMemory
 The Reporting variable for E.
 
float m_fltExternalI
 The external current.
 
float m_fltFiringFreq
 The firing frequency.
 
float m_fltGm
 The membrane conductance. Used for reporting purposes.
 
float m_fltGTotal
 Reported g total.
 
float m_fltICaMemory
 The ca current memory.
 
double m_fltLastSpikeTime
 Time of the last spike.
 
float m_fltMemPot
 The memory potential. This is for reporting purposes.
 
float m_fltNonSpikingSynCurMemory
 The non-spiking synaptic current memory. Used for reporting purposes.
 
float m_fltSpike
 The spike memory. Used for reporting purposes.
 
float m_fltSpikingSynCurMemory
 The spiking synaptic current memory. Used for reporting purposes.
 
float m_fltThresholdMemory
 The threshold potential memory. Used to allow us to chart the threshold if needed.
 
float m_fltTotalI
 The total current.
 
float m_fltTotalMemoryI
 The total current memory. This is used to allow datacharts to track current input from ion channels.
 
float m_fltVrest
 The rest potential. Used for reporting purposes.
 
int m_iIonChannels
 Number of ion channels.
 
int m_iNeuronID
 Integer ID for the neuron. This is its index in the array of neruons in the neural module.
 
CaActivationm_lpCaActive
 The pointer to the calcium activation object.
 
CaActivationm_lpCaInactive
 The pointer to the calcium inactivation object.
 
IntegrateFireNeuralModulem_lpIGFModule
 The pointer to the parent IntegrateFireNeuralModule.
 
long m_lRefrCountDown
 The refractory count down.
 
- Protected Attributes inherited from AnimatSim::Node
bool m_bInitEnabled
 Keeps track of the enabled state at sim startup.
 
float m_fltEnabled
 This is used for reporting the enabled state in a GetDataPointer call.
 
Organism * m_lpOrganism
 The pointer to this node's organism.
 
- Protected Attributes inherited from AnimatSim::AnimatBase
bool m_bEnabled
 Tells if this item is enabled or not. If it is not enabled then it is not run.
 
bool m_bSelected
 Tells whether the object is selected or not.
 
AnimatSim::Behavior::NeuralModulem_lpModule
 The pointer to this items parentNeuralModule. If this is not relevant for this object then this is NULL.
 
Nodem_lpNode
 The pointer to this items parent Node. If this is not relevant for this object then this is NULL.
 
Simulatorm_lpSim
 The pointer to a Simulation.
 
AnimatSim::Environment::Structurem_lpStructure
 The pointer to this items parent Structure. If this is not relevant for this object then this is NULL.
 
std::string m_strID
 The unique Id for this object.
 
std::string m_strName
 The name for this object.
 
std::string m_strType
 The type for this object. Examples are Box, Plane, Neuron, etc..
 

Static Protected Attributes

static double m_dAbsoluteRefr =2
 The static absolute refractory period after an action potential.
 
static double m_dAHPEquilPot =-70
 The static after-hyperpolarizing equil pot. Typically equil pot for K.
 
static double m_dCaEquilPot =200
 The static calcium equil pot.
 
static double m_dDT =0.5
 The statoc time step.
 
static double m_dSpikePeak =0
 The static spike peak.
 
static double m_dSpikeStrength =1
 The static spike strength used when calculating the action potential.
 
static long m_lAbsoluteRefr =0
 The static absolute refractory period in timeslices after an action potential.
 

Friends

class IntegrateFireSim::IntegrateFireNeuralModule
 

Additional Inherited Members

- Static Public Member Functions inherited from AnimatSim::Node
static NodeCastToDerived (AnimatBase *lpBase)
 

Detailed Description

Integrate and fire neuron model.

This class implements an integrate and fire neuron model.

Author
dcofer
Date
3/30/2011

Definition at line 26 of file IntegrateFireSim/Neuron.h.

Constructor & Destructor Documentation

IntegrateFireSim::Neuron::~Neuron ( )
virtual

Destructor.

Author
dcofer
Date
3/30/2011

Definition at line 114 of file IntegrateFireSim/Neuron.cpp.

References m_lpCaActive, and m_lpCaInactive.

Member Function Documentation

void IntegrateFireSim::Neuron::AccomodationTimeConstant ( double  dVal)

Sets the accomodation time constant.

Author
dcofer
Date
3/30/2011
Parameters
dValThe new value.

Definition at line 408 of file IntegrateFireSim/Neuron.cpp.

References m_dAccomTimeConst, m_dDCTH, and m_dDT.

double IntegrateFireSim::Neuron::AccomodationTimeConstant ( )

Gets the accomodation time constant.

Author
dcofer
Date
3/30/2011
Returns
accomodation time constant.

Definition at line 422 of file IntegrateFireSim/Neuron.cpp.

References m_dAccomTimeConst.

Referenced by SetData().

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void IntegrateFireSim::Neuron::AddExternalI ( float  fltVal)
virtual

Adds to the external current.

Author
dcofer
Date
3/29/2011
Parameters
fltValThe new value to add.

Definition at line 162 of file IntegrateFireSim/Neuron.cpp.

References m_fltExternalI.

Referenced by SetData().

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void IntegrateFireSim::Neuron::AddExternalNodeInput ( int  iTargetDataType,
float  fltInput 
)
virtual

Adds an external node input.

This is used by the adapter to add a new external value to this node. It is up to the node to interpret what that value means. For example, if it is a neuron then it can interpret it to be a current. This value is added to the current total so that multiple adapters can call this in a given time step. It is cleared out to zero at the beginning of the time step. You can now also specify which data you are adding to for this method call. This allows adapters to be setup to change multiple different variables in the system.

Author
dcofer
Date
6/16/2014
Parameters
iTargetDataTypeThe index of the target data type we are adding to.
fltInputThe new input.

Implements AnimatSim::Node.

Definition at line 1283 of file IntegrateFireSim/Neuron.cpp.

References m_bZapped, m_fltAdapterI, and m_fltAdapterMemoryI.

void IntegrateFireSim::Neuron::AddIonChannel ( std::string  strXml,
bool  bDoNotInit 
)
protectedvirtual

Adds an ion channel from an xml packet definition.

Author
dcofer
Date
3/30/2011
Parameters
strXmlThe xml to load.

Definition at line 1615 of file IntegrateFireSim/Neuron.cpp.

References AnimatSim::AnimatBase::Initialize(), and LoadIonChannel().

Referenced by AddItem().

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bool IntegrateFireSim::Neuron::AddItem ( const std::string &  strItemType,
const std::string &  strXml,
bool  bThrowError = true,
bool  bDoNotInit = false 
)
virtual

Adds a new object to this parent.

Generic method to add a new child item to this parent by specifying a string item type descriptor and an xml packet that can be used to load in the new object. The GUI uses this method to create new items that were added with the user interface. The item type lets the method determine what type of item is being created, like synapse, neuron, body part, etc.. It then gets the modulename, classname, and type from the xml and calls CreateObject to create the appropriate type of object. Then it passes in the xml packet to the new objects load method and does any needed initialization and adds it to the parent.

Author
dcofer
Date
2/22/2011
Parameters
strItemTypeString descriptor of the type of item that is being created.
strXmlXML packet that is used to create and load the new item.
bThrowErrorIf true then throw an error if there is a problem, otherwise return false.
Returns
true if it succeeds, false if it fails.

Reimplemented from AnimatSim::AnimatBase.

Definition at line 1643 of file IntegrateFireSim/Neuron.cpp.

References AddIonChannel(), and StdUtils::Std_CheckString().

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void IntegrateFireSim::Neuron::AHPAmplitude ( double  dVal)

Sets the after-hyperpolarizing conductance amplitude.

Author
dcofer
Date
3/30/2011
Parameters
dValThe new value.

Definition at line 432 of file IntegrateFireSim/Neuron.cpp.

References m_dAHPAmp.

double IntegrateFireSim::Neuron::AHPAmplitude ( )

Gets the after-hyperpolarizing conductance amplitude.

Author
dcofer
Date
3/30/2011
Returns
AHP Amplitude.

Definition at line 442 of file IntegrateFireSim/Neuron.cpp.

References m_dAHPAmp.

Referenced by SetData().

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void IntegrateFireSim::Neuron::AHPTimeConstant ( double  dVal)

Sets the after-hyperpolarizing time constant.

Author
dcofer
Date
3/30/2011
Parameters
dValThe new value.

Definition at line 452 of file IntegrateFireSim/Neuron.cpp.

References m_dAHPTimeConst, m_dDGK, and m_dDT.

double IntegrateFireSim::Neuron::AHPTimeConstant ( )

Gets the after-hyperpolarizing time constant.

Author
dcofer
Date
3/30/2011
Returns
AHP time constant.

Definition at line 466 of file IntegrateFireSim/Neuron.cpp.

References m_dAHPTimeConst.

Referenced by SetData().

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void IntegrateFireSim::Neuron::BurstGMaxCa ( double  dVal)

Sets the burst maximum calcium conductance.

Author
dcofer
Date
3/30/2011
Parameters
dValThe value.

Definition at line 476 of file IntegrateFireSim/Neuron.cpp.

References m_bBurstInitAtBottom, m_dGMaxCa, m_dH, m_dM, m_dMemPot, and m_dRestingPot.

double IntegrateFireSim::Neuron::BurstGMaxCa ( )

Gets the burst maximum calcium conductance.

Author
dcofer
Date
3/30/2011
Returns
conductance.

Definition at line 503 of file IntegrateFireSim/Neuron.cpp.

References m_dGMaxCa.

Referenced by BurstInitAtBottom(), and SetData().

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void IntegrateFireSim::Neuron::BurstHTimeConstant ( double  dVal)

Sets the burst inactivation time constant.

Author
dcofer
Date
3/30/2011
Parameters
dValThe new value.

Definition at line 613 of file IntegrateFireSim/Neuron.cpp.

References m_dHTimeConst.

Referenced by IntegrateFireSim::CaActivation::SetData().

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double IntegrateFireSim::Neuron::BurstHTimeConstant ( )

Gets the burst inactivation time constant.

Author
dcofer
Date
3/30/2011
Returns
time constant.

Definition at line 623 of file IntegrateFireSim/Neuron.cpp.

References m_dHTimeConst.

void IntegrateFireSim::Neuron::BurstInitAtBottom ( bool  bVal)

Sets the burst inactivation time constant.

Author
dcofer
Date
3/30/2011
Parameters
dValThe new value.

Definition at line 633 of file IntegrateFireSim/Neuron.cpp.

References BurstGMaxCa(), m_bBurstInitAtBottom, and m_dGMaxCa.

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bool IntegrateFireSim::Neuron::BurstInitAtBottom ( )

Gets the burst inactivation time constant.

Author
dcofer
Date
3/30/2011
Returns
time constant.

Definition at line 647 of file IntegrateFireSim/Neuron.cpp.

References m_bBurstInitAtBottom.

Referenced by SetData().

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void IntegrateFireSim::Neuron::BurstMTimeConstant ( double  dVal)

Gets the burst activation time constant.

Author
dcofer
Date
3/30/2011
Parameters
dValThe new value.

Definition at line 553 of file IntegrateFireSim/Neuron.cpp.

References m_dMTimeConst.

Referenced by IntegrateFireSim::CaActivation::SetData().

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double IntegrateFireSim::Neuron::BurstMTimeConstant ( )

Gets the burst activation time constant.

Author
dcofer
Date
3/30/2011
Returns
time constant.

Definition at line 563 of file IntegrateFireSim/Neuron.cpp.

References m_dMTimeConst.

void IntegrateFireSim::Neuron::BurstSh ( double  dVal)

Sets the burst inactivation slope.

Author
dcofer
Date
3/30/2011
Parameters
dValThe new value.

Definition at line 593 of file IntegrateFireSim/Neuron.cpp.

References m_dSH.

Referenced by IntegrateFireSim::CaActivation::SetData().

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double IntegrateFireSim::Neuron::BurstSh ( )

Gets the burst inactivation slope.

Author
dcofer
Date
3/30/2011
Returns
slope.

Definition at line 603 of file IntegrateFireSim/Neuron.cpp.

References m_dSH.

void IntegrateFireSim::Neuron::BurstSm ( double  dVal)

Sets the burst Activation slope.

Author
dcofer
Date
3/30/2011
Parameters
dValThe new value.

Definition at line 533 of file IntegrateFireSim/Neuron.cpp.

References m_dSM.

Referenced by IntegrateFireSim::CaActivation::SetData().

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double IntegrateFireSim::Neuron::BurstSm ( )

Gets the burst Activation slope.

Author
dcofer
Date
3/30/2011
Returns
slope.

Definition at line 543 of file IntegrateFireSim/Neuron.cpp.

References m_dSM.

void IntegrateFireSim::Neuron::BurstVh ( double  dVal)

Sets the burst inactivation mid point.

Author
dcofer
Date
3/30/2011
Parameters
dValThe new value.

Definition at line 573 of file IntegrateFireSim/Neuron.cpp.

References m_dVH.

Referenced by IntegrateFireSim::CaActivation::SetData().

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double IntegrateFireSim::Neuron::BurstVh ( )

Gets the burst inactivation mid point.

Author
dcofer
Date
3/30/2011
Returns
mid point.

Definition at line 583 of file IntegrateFireSim/Neuron.cpp.

References m_dVH.

void IntegrateFireSim::Neuron::BurstVm ( double  dVal)

Sets the burst activation mid point.

Author
dcofer
Date
3/30/2011
Parameters
dValThe new value.

Definition at line 513 of file IntegrateFireSim/Neuron.cpp.

References m_dVM.

Referenced by IntegrateFireSim::CaActivation::SetData().

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double IntegrateFireSim::Neuron::BurstVm ( )

Gets the burst activation mid point.

Author
dcofer
Date
3/30/2011
Returns
Mid-point.

Definition at line 523 of file IntegrateFireSim/Neuron.cpp.

References m_dVM.

void IntegrateFireSim::Neuron::CalculateFiringFreq ( IntegrateFireNeuralModule lpNS)
protected

Calculates the firing freq.

Author
dcofer
Date
3/30/2011
Parameters
[in,out]lpNSPointer to the neural module.

Definition at line 896 of file IntegrateFireSim/Neuron.cpp.

References IntegrateFireSim::IntegrateFireNeuralModule::GetCurrentTime(), m_bSpike, m_fltFiringFreq, and m_fltLastSpikeTime.

Referenced by CalcUpdateFinal().

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void IntegrateFireSim::Neuron::CalcUpdate ( IntegrateFireNeuralModule lpNS)

Calculates the update during a time step.

Author
dcofer
Date
3/30/2011
Parameters
[in,out]lpNSPointer to the neural module.

Definition at line 1073 of file IntegrateFireSim/Neuron.cpp.

References IntegrateFireSim::IntegrateFireNeuralModule::Cd(), IntegrateFireSim::Synapses::SpikingChemicalSynapse::EquilibriumPotential(), GetMemPot(), IntegrateFireSim::IntegrateFireNeuralModule::GetSpikingChemSynAt(), IntegrateFireSim::IntegrateFireNeuralModule::GetSpikingChemSynCount(), IntegrateFireSim::IntegrateFireNeuralModule::GetTimeStep(), IntegrateFireSim::IntegrateFireNeuralModule::HH(), m_aryFacilD, m_aryFacilSponSynG, m_aryIonChannels, m_aryNextSponSynTime, m_arySynG, m_aryTonicInputPeriod, m_aryTonicInputPeriodType, m_bSpike, IntegrateFireSim::Synapses::SpikingChemicalSynapse::m_bVoltDep, m_bZapped, m_dAHPAmp, m_dAHPEquilPot, m_dCaEquilPot, m_dCm, m_dDCTH, m_dDGK, m_dDT, m_dElecSynCond, m_dElecSynCur, IntegrateFireSim::Synapses::SpikingChemicalSynapse::m_dEquil, m_dGK, m_dGMaxCa, m_dGTot, m_dH, m_dHTimeConst, m_dInitialThresh, m_dM, IntegrateFireSim::Synapses::SpikingChemicalSynapse::m_dMaxRelCond, m_dMemPot, m_dMTimeConst, m_dNewMemPot, m_dNoise, m_dNonSpikingSynCond, m_dNonSpikingSynCur, m_dRelativeAccom, IntegrateFireSim::Synapses::SpikingChemicalSynapse::m_dRelFacil, m_dRestingPot, IntegrateFireSim::Synapses::SpikingChemicalSynapse::m_dSatPSPot, m_dSH, m_dSize, m_dSM, m_dStim, IntegrateFireSim::Synapses::SpikingChemicalSynapse::m_dSynAmp, m_dThresh, IntegrateFireSim::Synapses::SpikingChemicalSynapse::m_dThreshPSPot, m_dTimeConst, m_dVH, m_dVM, m_fltAdapterI, m_fltChannelI, m_fltChannelMemoryI, m_fltElecSynCurMemory, m_fltEMemory, m_fltExternalI, m_fltGTotal, m_fltICaMemory, m_fltNonSpikingSynCurMemory, m_fltSpikingSynCurMemory, m_fltTotalI, m_fltTotalMemoryI, m_iIonChannels, IntegrateFireSim::IntegrateFireNeuralModule::ScaleCondForVoltDep(), and StdUtils::Std_LRand().

Referenced by IntegrateFireSim::IntegrateFireNeuralModule::CalcUpdate().

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void IntegrateFireSim::Neuron::CalcUpdateFinal ( IntegrateFireNeuralModule lpNS)

Calculates the final update during a step.

Author
dcofer
Date
3/30/2011
Parameters
[in,out]lpNSPointer to the neural module.

Definition at line 1015 of file IntegrateFireSim/Neuron.cpp.

References CalculateFiringFreq(), IntegrateFireSim::IntegrateFireNeuralModule::HH(), m_aryDG, m_arySynG, m_bSpike, m_bZapped, m_dMemPot, m_dNewMemPot, m_dSpikePeak, m_dThresh, m_fltMemPot, m_fltSpike, m_fltThresholdMemory, m_lAbsoluteRefr, m_lRefrCountDown, and IntegrateFireSim::IntegrateFireNeuralModule::TTX().

Referenced by IntegrateFireSim::IntegrateFireNeuralModule::CalcUpdate().

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bool IntegrateFireSim::Neuron::Enabled ( )
virtual

Tells whether this node is enabled.

Some types of nodes can be enabled/disabled. For example, joints or muscles. This tells what enabled state the node is in. This will not apply to every node object type.

Author
dcofer
Date
2/24/2011
Returns
true if it enabled, false if not.

Reimplemented from AnimatSim::Node.

Definition at line 146 of file IntegrateFireSim/Neuron.cpp.

References m_bZapped.

void IntegrateFireSim::Neuron::Enabled ( bool  bValue)
virtual

Enables the node.

Some types of nodes can be enabled/disabled. This sets the enabled state of the object.

Author
dcofer
Date
2/24/2011
Parameters
bValuetrue to enable.

Reimplemented from AnimatSim::Node.

Definition at line 148 of file IntegrateFireSim/Neuron.cpp.

References m_bZapped.

IonChannel * IntegrateFireSim::Neuron::FindIonChannel ( std::string  strID,
bool  bThrowError 
)
protected

Searches for an ion channel with the matching ID.

Author
dcofer
Date
3/30/2011
Parameters
strIDGUID ID of the channel to find.
bThrowErrortrue to throw error if channel is not found.
Returns
Pointer to the ion channel.

Definition at line 1303 of file IntegrateFireSim/Neuron.cpp.

References AnimatSim::AnimatBase::ID(), m_aryIonChannels, and m_iIonChannels.

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int IntegrateFireSim::Neuron::FindIonChannelListPos ( std::string  strID,
bool  bThrowError = true 
)
virtual

Searches for an ion channel with the specified ID and returns its position in the array.

Author
dcofer
Date
3/30/2011
Parameters
strIDGUID ID for of the channel to find.
bThrowErrortrue to throw error if channel is not found.
Returns
The found ion channel list position.

Definition at line 1326 of file IntegrateFireSim/Neuron.cpp.

References AnimatSim::AnimatBase::ID(), m_aryIonChannels, StdUtils::Std_ToUpper(), and StdUtils::Std_Trim().

Referenced by RemoveIonChannel().

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float * IntegrateFireSim::Neuron::GetDataPointer ( const std::string &  strDataType)
virtual

Returns a float pointer to a data item of interest in this object.

This is a generic method used to get a pointer to data variable of interest. It is used by a variety of systems in the simulation. The most prominent are the data charting and stimulus classes. Within this method we associate a variable with a string name. By passing in the name of the data type we are interested in we can recieve back a float pointer to that data type. We can use that to read or set the data item in other classes. For example, the data charting system gets the pointer and then each time it needs to log a data point it reads the value into an array.

Author
dcofer
Date
2/22/2011
Parameters
strDataTypename of the data item for which we are looking.
Returns
float pointer of the data item. If not found then it throws an exception.
Exceptions
IfDataType is not found.

Reimplemented from AnimatSim::AnimatBase.

Definition at line 1421 of file IntegrateFireSim/Neuron.cpp.

References m_fltAdapterMemoryI, m_fltChannelMemoryI, m_fltElecSynCurMemory, m_fltEMemory, m_fltExternalI, m_fltFiringFreq, m_fltGm, m_fltGTotal, m_fltICaMemory, m_fltMemPot, m_fltNonSpikingSynCurMemory, m_fltSpike, m_fltSpikingSynCurMemory, m_fltThresholdMemory, m_fltTotalMemoryI, m_fltVrest, and StdUtils::Std_CheckString().

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double IntegrateFireSim::Neuron::GetMemPot ( )

Gets the membrane potential.

Author
dcofer
Date
3/30/2011
Returns
The membrane potential.

Definition at line 185 of file IntegrateFireSim/Neuron.cpp.

References m_bSpike, m_bZapped, m_dMemPot, and m_dSpikePeak.

Referenced by IntegrateFireSim::IntegrateFireNeuralModule::CalcUpdate(), and CalcUpdate().

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double IntegrateFireSim::Neuron::GetRestingPot ( )

Gets the resting potential.

Author
dcofer
Date
3/30/2011
Returns
The resting potential.

Definition at line 175 of file IntegrateFireSim/Neuron.cpp.

References m_dRestingPot.

Referenced by IntegrateFireSim::IntegrateFireNeuralModule::CalcUpdate().

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bool IntegrateFireSim::Neuron::GetSpike ( )

Gets whether a spike occured.

Author
dcofer
Date
3/30/2011
Returns
true if it spiked, false else.

Definition at line 205 of file IntegrateFireSim/Neuron.cpp.

References m_bSpike, and m_bZapped.

Referenced by IntegrateFireSim::IntegrateFireNeuralModule::CalcUpdate().

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double IntegrateFireSim::Neuron::GetThresh ( )

Gets the votlge threshold.

Author
dcofer
Date
3/30/2011
Returns
The votlge threshold.

Definition at line 195 of file IntegrateFireSim/Neuron.cpp.

References m_bZapped, and m_dThresh.

bool IntegrateFireSim::Neuron::GetZapped ( )

Gets if the neuron is disabled.

Author
dcofer
Date
3/30/2011
Returns
true if it is disabled, false else.

Definition at line 215 of file IntegrateFireSim/Neuron.cpp.

References m_bZapped.

Referenced by IntegrateFireSim::IntegrateFireNeuralModule::CalcUpdate().

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void IntegrateFireSim::Neuron::IncNonSpikingSynCond ( double  cond)

Increment non-spiking syn conductance.

Author
dcofer
Date
3/30/2011
Parameters
condThe conductance.

Definition at line 265 of file IntegrateFireSim/Neuron.cpp.

References m_dNonSpikingSynCond.

Referenced by IntegrateFireSim::IntegrateFireNeuralModule::CalcUpdate().

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void IntegrateFireSim::Neuron::IncNonSpikingSynCurr ( double  cur)

Increment non-spiking syn current.

Author
dcofer
Date
3/30/2011
Parameters
curThe current.

Definition at line 255 of file IntegrateFireSim/Neuron.cpp.

References m_dNonSpikingSynCur.

Referenced by IntegrateFireSim::IntegrateFireNeuralModule::CalcUpdate().

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void IntegrateFireSim::Neuron::IncrementStim ( double  stim)

Increments the current stimulus.

Author
dcofer
Date
3/30/2011
Parameters
stimThe stim.

Definition at line 225 of file IntegrateFireSim/Neuron.cpp.

References m_dStim.

void IntegrateFireSim::Neuron::InElectricalSynapseCond ( double  cond)

Increments electrical synapse conductance.

Author
dcofer
Date
3/30/2011
Parameters
condThe conductance.

Definition at line 245 of file IntegrateFireSim/Neuron.cpp.

References m_dElecSynCond.

Referenced by IntegrateFireSim::IntegrateFireNeuralModule::CalcUpdate().

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void IntegrateFireSim::Neuron::InElectricalSynapseCurr ( double  cur)

Increments electrical synapse current.

Author
dcofer
Date
3/30/2011
Parameters
curThe current.

Definition at line 235 of file IntegrateFireSim/Neuron.cpp.

References m_dElecSynCur.

Referenced by IntegrateFireSim::IntegrateFireNeuralModule::CalcUpdate().

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void IntegrateFireSim::Neuron::InitialThreshold ( double  dVal)

Sets the initial threshold.

Author
dcofer
Date
3/30/2011
Parameters
dValThe new value.

Definition at line 363 of file IntegrateFireSim/Neuron.cpp.

References m_dInitialThresh, m_dThresh, and m_fltThresholdMemory.

double IntegrateFireSim::Neuron::InitialThreshold ( )

Gets the initial threshold.

Author
dcofer
Date
3/30/2011
Returns
initial threshold.

Definition at line 378 of file IntegrateFireSim/Neuron.cpp.

References m_dInitialThresh.

Referenced by SetData().

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CStdPtrArray< IonChannel > * IntegrateFireSim::Neuron::IonChannels ( )

Gets the ion channels.

Author
dcofer
Date
3/30/2011
Returns
Pointer to array of ion channels.

Definition at line 275 of file IntegrateFireSim/Neuron.cpp.

References m_aryIonChannels.

IonChannel * IntegrateFireSim::Neuron::LoadIonChannel ( CStdXml &  oXml)
protectedvirtual

Loads an ion channel.

Author
dcofer
Date
3/30/2011
Parameters
[in,out]oXmlThe xml to load.
Returns
Pointer to the loaded ion channel.

Definition at line 801 of file IntegrateFireSim/Neuron.cpp.

References m_aryIonChannels, AnimatSim::AnimatBase::m_lpModule, AnimatSim::AnimatBase::m_lpSim, AnimatSim::AnimatBase::m_lpStructure, and AnimatSim::AnimatBase::SetSystemPointers().

Referenced by AddIonChannel().

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int IntegrateFireSim::Neuron::NeuronID ( )

Gets the neuron ID.

Author
dcofer
Date
3/30/2011
Returns
Neuron ID.

Definition at line 134 of file IntegrateFireSim/Neuron.cpp.

References m_iNeuronID.

Referenced by IntegrateFireSim::Synapses::Connexion::ResetIDs().

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void IntegrateFireSim::Neuron::NeuronID ( int  iID)

Sets the Neuron ID.

Author
dcofer
Date
3/30/2011
Parameters
iIDThe identifier.

Definition at line 144 of file IntegrateFireSim/Neuron.cpp.

References m_iNeuronID.

void IntegrateFireSim::Neuron::PostCalc ( IntegrateFireNeuralModule lpNS)

Called when simulation is ended.

Author
dcofer
Date
3/30/2011
Parameters
[in,out]lpNSPointer to the neural module.

Definition at line 1056 of file IntegrateFireSim/Neuron.cpp.

References m_aryDG, m_aryFacilD, m_aryFacilSponSynG, m_aryNextSponSynTime, and m_arySynG.

Referenced by IntegrateFireSim::IntegrateFireNeuralModule::PostCalc().

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void IntegrateFireSim::Neuron::RelativeAccomodation ( double  dVal)

Sets the relative accomodation value.

Author
dcofer
Date
3/30/2011
Parameters
dValThe new value.

Definition at line 388 of file IntegrateFireSim/Neuron.cpp.

References m_dRelativeAccom.

double IntegrateFireSim::Neuron::RelativeAccomodation ( )

Gets the relative accomodation.

Author
dcofer
Date
3/30/2011
Returns
relative accomodation.

Definition at line 398 of file IntegrateFireSim/Neuron.cpp.

References m_dRelativeAccom.

Referenced by SetData().

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void IntegrateFireSim::Neuron::RemoveIonChannel ( std::string  strID,
bool  bThrowError = true 
)
protectedvirtual

Removes the ion channel.

Author
dcofer
Date
3/30/2011
Parameters
strIDGUID ID for the channel to remove.
bThrowErrortrue to throw error if channel is not found.

Definition at line 1637 of file IntegrateFireSim/Neuron.cpp.

References FindIonChannelListPos(), and m_aryIonChannels.

Referenced by RemoveItem().

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bool IntegrateFireSim::Neuron::RemoveItem ( const std::string &  strItemType,
const std::string &  strID,
bool  bThrowError = true 
)
virtual

Removes a child item from this parent.

This is a generic method that is used to delete a child object from this parent. The GUI uses this method to remove objects from the simulation that have been deleted in the UI. The item type lets the method determine what type of item is being deleted, like synapse, neuron, body part, etc.. The ID is then used to delete that specific item.

Author
dcofer
Date
2/22/2011
Parameters
strItemTypeString descriptor of the type of item that is being created.
strIDUnique ID of the item that will be removed.
bThrowErrorIf true then throw an error if there is a problem, otherwise return false.
Returns
true if it succeeds, false if it fails.

Reimplemented from AnimatSim::AnimatBase.

Definition at line 1660 of file IntegrateFireSim/Neuron.cpp.

References RemoveIonChannel(), and StdUtils::Std_CheckString().

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void IntegrateFireSim::Neuron::RestingPotential ( double  dVal)

Sets the resting potential.

Author
dcofer
Date
3/30/2011
Parameters
dValThe new value.

Definition at line 285 of file IntegrateFireSim/Neuron.cpp.

References m_dMemPot, m_dNewMemPot, and m_dRestingPot.

double IntegrateFireSim::Neuron::RestingPotential ( )

Gets the resting potential.

Author
dcofer
Date
3/30/2011
Returns
resting potential.

Definition at line 304 of file IntegrateFireSim/Neuron.cpp.

References m_dRestingPot.

Referenced by SetData().

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bool IntegrateFireSim::Neuron::SetData ( const std::string &  strDataType,
const std::string &  strValue,
bool  bThrowError = true 
)
virtual

Set a variable based on a string data type name.

This is a generic method that can be used to set any variable in an AnimatBase object by specifying the name of the variable and a string representation of that data. The GUI uses this method to set data into variables in the simulation when the user changes them in the UI. The value string can be as simple as a float or int, or as complex as an xml packet. It is the developers responsibilty to know what type of data is needed and to process it accordingly.

Author
dcofer
Date
2/22/2011
Parameters
strDataTypestring name of the data type to set.
strValueThe string value of the data. It is up to the developer to determine what this should be. For example, in most cases it is simply a float and you just have to convert it to a float and make the appropriate mutator method call. However, it can be any type of string, including an entire xml packet. It is the developers responsibility to know how to set and process the data as required.
bThrowErrortrue to throw error if there is a problem. If false then it will not return an error, just return false.
Returns
true if it succeeds, false if it fails.

Reimplemented from AnimatSim::Node.

Definition at line 1479 of file IntegrateFireSim/Neuron.cpp.

References AccomodationTimeConstant(), AddExternalI(), AHPAmplitude(), AHPTimeConstant(), BurstGMaxCa(), BurstInitAtBottom(), InitialThreshold(), RelativeAccomodation(), RestingPotential(), Size(), StdUtils::Std_CheckString(), StdUtils::Std_ToBool(), TimeConstant(), and TonicStimulus().

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void IntegrateFireSim::Neuron::Size ( double  dVal)

Sets the size of the neuron.

Author
dcofer
Date
3/30/2011
Parameters
dValThe new value.

Definition at line 314 of file IntegrateFireSim/Neuron.cpp.

References m_dCm, m_dSize, m_dTimeConst, and m_fltGm.

double IntegrateFireSim::Neuron::Size ( )

Gets the size of the neuron.

Author
dcofer
Date
3/30/2011
Returns
size.

Definition at line 329 of file IntegrateFireSim/Neuron.cpp.

References m_dSize.

Referenced by SetData().

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void IntegrateFireSim::Neuron::TimeConstant ( double  dVal)

Sets the time constant.

Author
dcofer
Date
3/30/2011
Parameters
dValThe new value.

Definition at line 339 of file IntegrateFireSim/Neuron.cpp.

References m_dCm, m_dSize, and m_dTimeConst.

double IntegrateFireSim::Neuron::TimeConstant ( )

Gets the time constant.

Author
dcofer
Date
3/30/2011
Returns
time constant.

Definition at line 353 of file IntegrateFireSim/Neuron.cpp.

References m_dTimeConst.

Referenced by SetData().

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void IntegrateFireSim::Neuron::TonicStimulus ( double  dblVal)

Sets the neurons tonic stimulus current.

Author
dcofer
Date
2/2/2012
Parameters
dblValThe stimulus value.

Definition at line 657 of file IntegrateFireSim/Neuron.cpp.

References m_dToniCurrentStimulusulus.

double IntegrateFireSim::Neuron::TonicStimulus ( )

Gets the tonic stimulus current of the neuron.

Author
dcofer
Date
2/2/2012
Returns
Tonic stimulus current.

Definition at line 670 of file IntegrateFireSim/Neuron.cpp.

References m_dToniCurrentStimulusulus.

Referenced by SetData().

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void IntegrateFireSim::Neuron::VerifySystemPointers ( )
virtual

Verify that system pointers have been set correctly.

The system pointers should be set just after an object is created. However, if for some reason it was not then this could cause read/write memory access errors later on because we would be using NULL pointers. This method is called during SetSystemPointers, Load, and Initialize to verify that the pointers for that type of object have been set correctly. We are calling three different places to ensure that it is checked before use. For example, if you are doing a Load call then you want to check it before attempting the load, but there may be an object that does not Load, but only does Initialize. So we need to check it there as well.

Author
dcofer
Date
3/4/2011

Reimplemented from AnimatSim::Node.

Definition at line 691 of file IntegrateFireSim/Neuron.cpp.

References m_lpIGFModule, and AnimatSim::AnimatBase::m_strID.

Member Data Documentation

bool IntegrateFireSim::Neuron::m_bBurstInitAtBottom
protected

If this is true then when Max Burst Ca is > 0 then it will reset the burst params. If it is false it will start at equilibruim

Definition at line 133 of file IntegrateFireSim/Neuron.h.

Referenced by BurstGMaxCa(), BurstInitAtBottom(), Neuron(), PreCalc(), and ResetSimulation().


The documentation for this class was generated from the following files: