aEIFNeuronBase Class Reference

An aEIF (adaptive Exponential Integrate and Fire) neuron. More...

#include <aEIFNeuron.h>

Inheritance diagram for aEIFNeuronBase:

Collaboration diagram for aEIFNeuronBase:

List of all members.

Public Member Functions

aEIFNeuronBase (double a=4e-9, double b=0.0805e-9, double Vt=-50.6e-3, double Vr=-70.4e-3, double El=-70.4e-3, double gl=30e-9, double Cm=281e-12, double tau_w=144e-3, double slope=2e-3, double Vpeak=20.0e-3, double Vinit=-60.0e-3, double Inoise=0.0, double Iinject=0.0)

virtual ~aEIFNeuronBase ()

virtual int adjust (double dt)

This tells the object that it should adjust to a new simulation time step width.

virtual int advance (AdvanceInfo const &)

Advance the neuron.

virtual int reset (double dt)

Reset the Izhi-Neuron.

bool refractoryQ ()

Returns true iff the neuron is in its absolute refactory period.

virtual void clearSynapticInput (void)

virtual double getManagedDelay () const

virtual int nSpikeInputPorts () const

virtual int nSpikeOutputPorts () const

virtual int nAnalogInputPorts () const

virtual int nAnalogOutputPorts () const

virtual PortType outputPortType (port_t o) const

virtual PortType inputPortType (port_t i) const

Public Attributes

double a

A constant (0.02, 01) describing the coupling of variable u to Vm; [units=D; range=(0,10);].

double b

A constant controlling sensitivity of u. [units=D; range=(0,10);].

double Vt

The instantaneous treshold of membrane voltage. [units=V; range=(-1,1);].

double Vr

The reset membrane voltage. [units=V; range=(-1,1);].

double El

The leak reversal potentail $C_m$ [range=(-1,1); units=V;].

double gl

The leak conductance $C_m$ [range=(-1,1); units=S;].

double Cm

The membrane capacity $C_m$ [range=(0,1); units=F;].

double tau_w

The adaptation time constant $C_m$ [range=(0,1); units=s;].

double slope

slope factor $C_m$ [range=(0,1); units=V;]

double Vpeak

If $V_m$ exceeds the Value of $V_m$ is resetet to d. [units=V; range=(-10,100);].

double Vinit

The initial condition for $V_m$ at time $t=0$ . [units=V; range=(-1,1);].

double Inoise

The standard deviation of the noise to be added each integration time constant. [range=(0,1); units=A;].

double Iinject

A constant current to be injected into the LIF neuron. [units=A; range=(-1,1);].

Protected Attributes

double Vm

The membrane voltage $V_m$ [readonly; units=V;].

double w

internal variable [readonly; units=V;]

double _dt

The time step [readonly; units=s;].

int noiseType

noise type (0.,,gaussian Noise, 1...pink noise, 3...Ornstein Uhlenbeck noise) [range=(0,2); units=;]

double Isyn

Summation point for all synaptic input currents.

double factI

Static Protected Attributes

static
ThreadSpecificRandomDistribution
< NormalDistribution > white_noise

Random number generator for white noise.

Detailed Description

An aEIF (adaptive Exponential Integrate and Fire) neuron.

see ''Adaptive Exponential Integrate-and-Fire Model as an Effective Description of Neuronal Activity'' Romain Brette and Wulfram Gerstner, J.Neurophysiology 94, 2005

Model

Definition at line 24 of file aEIFNeuron.h.

Constructor & Destructor Documentation

aEIFNeuronBase::aEIFNeuronBase	(	double	a = `4e-9`,
		double	b = `0.0805e-9`,
		double	Vt = `-50.6e-3`,
		double	Vr = `-70.4e-3`,
		double	El = `-70.4e-3`,
		double	gl = `30e-9`,
		double	Cm = `281e-12`,
		double	tau_w = `144e-3`,
		double	slope = `2e-3`,
		double	Vpeak = `20.0e-3`,
		double	Vinit = `-60.0e-3`,
		double	Inoise = `0.0`,
		double	Iinject = `0.0`
	)

Definition at line 20 of file aEIFNeuron.cpp.

virtual aEIFNeuronBase::~aEIFNeuronBase ( ) [inline, virtual]

Definition at line 41 of file aEIFNeuron.h.

Member Function Documentation

int aEIFNeuronBase::adjust ( double dt ) [virtual]

This tells the object that it should adjust to a new simulation time step width.

Reimplemented from SimObject.

Definition at line 73 of file aEIFNeuron.cpp.

References _dt, and clearSynapticInput().

Referenced by reset().

Here is the call graph for this function:

int aEIFNeuronBase::advance ( AdvanceInfo const & ai ) [virtual]

Advance the neuron.

Reimplemented from SimObject.

Reimplemented in CompositeNeuron< CbaEIFNeuron >.

Definition at line 28 of file aEIFNeuron.cpp.

References _dt, a, ADVANCEFLAG_HASSPIKED, b, clearSynapticInput(), Cm, El, gl, Iinject, Inoise, Isyn, SingleOutputSpikeSender::out_port, SpikeOutputPort::setSpike(), slope, tau_w, Vm, Vpeak, Vr, Vt, w, and white_noise.

Here is the call graph for this function:

int aEIFNeuronBase::reset ( double dt ) [virtual]

Reset the Izhi-Neuron.

Reimplemented from SimObject.

Reimplemented in aEIFCondAlphaNeuron, and CompositeNeuron< CbaEIFNeuron >.

Definition at line 84 of file aEIFNeuron.cpp.

References adjust(), clearSynapticInput(), SingleOutputSpikeSender::reset(), Vinit, Vm, and w.

Here is the call graph for this function:

bool aEIFNeuronBase::refractoryQ ( ) [inline]

Returns true iff the neuron is in its absolute refactory period.

Definition at line 55 of file aEIFNeuron.h.

void aEIFNeuronBase::clearSynapticInput ( void ) [inline, virtual]

Definition at line 67 of file aEIFNeuron.cpp.

References Isyn.

Referenced by adjust(), advance(), and reset().

virtual double aEIFNeuronBase::getManagedDelay ( ) const [inline, virtual]

Reimplemented from SimObject.

Definition at line 91 of file aEIFNeuron.h.

virtual int aEIFNeuronBase::nSpikeInputPorts ( ) const [inline, virtual]

Reimplemented from SimObject.

Reimplemented in CompositeNeuron< CbaEIFNeuron >.

Definition at line 92 of file aEIFNeuron.h.

virtual int aEIFNeuronBase::nSpikeOutputPorts ( ) const [inline, virtual]

Reimplemented from SimObject.

Reimplemented in CompositeNeuron< CbaEIFNeuron >.

Definition at line 93 of file aEIFNeuron.h.

virtual int aEIFNeuronBase::nAnalogInputPorts ( ) const [inline, virtual]

Reimplemented from SimObject.

Reimplemented in CompositeNeuron< CbaEIFNeuron >.

Definition at line 94 of file aEIFNeuron.h.

virtual int aEIFNeuronBase::nAnalogOutputPorts ( ) const [inline, virtual]

Reimplemented from SimObject.

Reimplemented in CompositeNeuron< CbaEIFNeuron >.

Definition at line 95 of file aEIFNeuron.h.

virtual PortType aEIFNeuronBase::outputPortType ( port_t o ) const [inline, virtual]

Reimplemented from SimObject.

Reimplemented in CompositeNeuron< CbaEIFNeuron >.

Definition at line 97 of file aEIFNeuron.h.

References SimObject::spiking, and SimObject::undefined.

virtual PortType aEIFNeuronBase::inputPortType ( port_t i ) const [inline, virtual]

Reimplemented from SimObject.

Definition at line 102 of file aEIFNeuron.h.

References SimObject::undefined.

Member Data Documentation

double aEIFNeuronBase::a

A constant (0.02, 01) describing the coupling of variable u to Vm; [units=D; range=(0,10);].

Definition at line 64 of file aEIFNeuron.h.

Referenced by advance(), and aEIFCondAlphaNeuron::aEIFCondAlphaNeuron().

double aEIFNeuronBase::b

A constant controlling sensitivity of u. [units=D; range=(0,10);].

Definition at line 66 of file aEIFNeuron.h.

Referenced by advance(), and aEIFCondAlphaNeuron::aEIFCondAlphaNeuron().

double aEIFNeuronBase::Vt

The instantaneous treshold of membrane voltage. [units=V; range=(-1,1);].

Definition at line 68 of file aEIFNeuron.h.

Referenced by advance(), and aEIFCondAlphaNeuron::aEIFCondAlphaNeuron().

double aEIFNeuronBase::Vr

The reset membrane voltage. [units=V; range=(-1,1);].

Definition at line 70 of file aEIFNeuron.h.

Referenced by advance(), and aEIFCondAlphaNeuron::aEIFCondAlphaNeuron().

double aEIFNeuronBase::El

The leak reversal potentail $C_m$ [range=(-1,1); units=V;].

Definition at line 72 of file aEIFNeuron.h.

Referenced by advance(), and aEIFCondAlphaNeuron::aEIFCondAlphaNeuron().

double aEIFNeuronBase::gl

The leak conductance $C_m$ [range=(-1,1); units=S;].

Definition at line 74 of file aEIFNeuron.h.

Referenced by advance(), and aEIFCondAlphaNeuron::aEIFCondAlphaNeuron().

double aEIFNeuronBase::Cm

The membrane capacity $C_m$ [range=(0,1); units=F;].

Definition at line 76 of file aEIFNeuron.h.

Referenced by advance(), and aEIFCondAlphaNeuron::aEIFCondAlphaNeuron().

double aEIFNeuronBase::tau_w

The adaptation time constant $C_m$ [range=(0,1); units=s;].

Definition at line 78 of file aEIFNeuron.h.

Referenced by advance(), and aEIFCondAlphaNeuron::aEIFCondAlphaNeuron().

double aEIFNeuronBase::slope

slope factor $C_m$ [range=(0,1); units=V;]

Definition at line 80 of file aEIFNeuron.h.

Referenced by advance(), and aEIFCondAlphaNeuron::aEIFCondAlphaNeuron().

double aEIFNeuronBase::Vpeak

If $V_m$ exceeds the Value of $V_m$ is resetet to d. [units=V; range=(-10,100);].

Definition at line 83 of file aEIFNeuron.h.

Referenced by advance(), and aEIFCondAlphaNeuron::aEIFCondAlphaNeuron().

double aEIFNeuronBase::Vinit

The initial condition for $V_m$ at time $t=0$ . [units=V; range=(-1,1);].

Definition at line 85 of file aEIFNeuron.h.

Referenced by aEIFCondAlphaNeuron::aEIFCondAlphaNeuron(), and reset().

double aEIFNeuronBase::Inoise

The standard deviation of the noise to be added each integration time constant. [range=(0,1); units=A;].

Definition at line 87 of file aEIFNeuron.h.

Referenced by advance(), and aEIFCondAlphaNeuron::aEIFCondAlphaNeuron().

double aEIFNeuronBase::Iinject

A constant current to be injected into the LIF neuron. [units=A; range=(-1,1);].

Definition at line 89 of file aEIFNeuron.h.

Referenced by advance(), and aEIFCondAlphaNeuron::aEIFCondAlphaNeuron().

double aEIFNeuronBase::Vm [protected]

The membrane voltage $V_m$ [readonly; units=V;].

Definition at line 105 of file aEIFNeuron.h.

Referenced by advance(), CbaEIFNeuron::conductanceInput(), CbaEIFNeuron::getVm(), and reset().

double aEIFNeuronBase::w [protected]

internal variable [readonly; units=V;]

Definition at line 111 of file aEIFNeuron.h.

Referenced by advance(), and reset().

double aEIFNeuronBase::_dt [protected]

The time step [readonly; units=s;].

Definition at line 113 of file aEIFNeuron.h.

Referenced by adjust(), and advance().

ThreadSpecificRandomDistribution< NormalDistribution > aEIFNeuronBase::white_noise [static, protected]

Random number generator for white noise.

Definition at line 116 of file aEIFNeuron.h.

Referenced by advance().

int aEIFNeuronBase::noiseType [protected]

noise type (0.,,gaussian Noise, 1...pink noise, 3...Ornstein Uhlenbeck noise) [range=(0,2); units=;]

Definition at line 122 of file aEIFNeuron.h.

double aEIFNeuronBase::Isyn [protected]

Summation point for all synaptic input currents.

Definition at line 124 of file aEIFNeuron.h.

Referenced by advance(), clearSynapticInput(), CbaEIFNeuron::conductanceInput(), CbaEIFNeuron::currentInput(), and aEIFNeuron::currentInput().

double aEIFNeuronBase::factI [protected]

Definition at line 127 of file aEIFNeuron.h.

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

/home/tnatschl/PCSIM-Sandbox/pcsim/pcsim/simobjects/aEIFNeuron.h
/home/tnatschl/PCSIM-Sandbox/pcsim/pcsim/simobjects/aEIFNeuron.cpp


Public Member Functions
	aEIFNeuronBase (double a=4e-9, double b=0.0805e-9, double Vt=-50.6e-3, double Vr=-70.4e-3, double El=-70.4e-3, double gl=30e-9, double Cm=281e-12, double tau_w=144e-3, double slope=2e-3, double Vpeak=20.0e-3, double Vinit=-60.0e-3, double Inoise=0.0, double Iinject=0.0)
virtual	~aEIFNeuronBase ()
virtual int	adjust (double dt)
	This tells the object that it should adjust to a new simulation time step width.
virtual int	advance (AdvanceInfo const &)
	Advance the neuron.
virtual int	reset (double dt)
	Reset the Izhi-Neuron.
bool	refractoryQ ()
	Returns true iff the neuron is in its absolute refactory period.
virtual void	clearSynapticInput (void)
virtual double	getManagedDelay () const
virtual int	nSpikeInputPorts () const
virtual int	nSpikeOutputPorts () const
virtual int	nAnalogInputPorts () const
virtual int	nAnalogOutputPorts () const
virtual PortType	outputPortType (port_t o) const
virtual PortType	inputPortType (port_t i) const
Public Attributes
double	a
	A constant (0.02, 01) describing the coupling of variable u to Vm; [units=D; range=(0,10);].
double	b
	A constant controlling sensitivity of u. [units=D; range=(0,10);].
double	Vt
	The instantaneous treshold of membrane voltage. [units=V; range=(-1,1);].
double	Vr
	The reset membrane voltage. [units=V; range=(-1,1);].
double	El
	The leak reversal potentail [range=(-1,1); units=V;].
double	gl
	The leak conductance [range=(-1,1); units=S;].
double	Cm
	The membrane capacity [range=(0,1); units=F;].
double	tau_w
	The adaptation time constant [range=(0,1); units=s;].
double	slope
	slope factor [range=(0,1); units=V;]
double	Vpeak
	If exceeds the Value of is resetet to d. [units=V; range=(-10,100);].
double	Vinit
	The initial condition for at time . [units=V; range=(-1,1);].
double	Inoise
	The standard deviation of the noise to be added each integration time constant. [range=(0,1); units=A;].
double	Iinject
	A constant current to be injected into the LIF neuron. [units=A; range=(-1,1);].
Protected Attributes
double	Vm
	The membrane voltage [readonly; units=V;].
double	w
	internal variable [readonly; units=V;]
double	_dt
	The time step [readonly; units=s;].
int	noiseType
	noise type (0.,,gaussian Noise, 1...pink noise, 3...Ornstein Uhlenbeck noise) [range=(0,2); units=;]
double	Isyn
	Summation point for all synaptic input currents.
double	factI
Static Protected Attributes
static ThreadSpecificRandomDistribution < NormalDistribution >	white_noise
	Random number generator for white noise.