DoubleExponentialSpikeResponse Class Reference

#include <DoubleExponentialSpikeResponse.h>

Inheritance diagram for DoubleExponentialSpikeResponse:

Collaboration diagram for DoubleExponentialSpikeResponse:

List of all members.

Public Member Functions

DoubleExponentialSpikeResponse (const float tau1=1e-3, const float tau2=3e-3)

virtual ~DoubleExponentialSpikeResponse ()

virtual int adjust (double dt)

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

virtual int reset (double dt)

Called at the beginning of a simulation at t=0.

virtual int advance (AdvanceInfo const &)

Calculate the next state and output/propagate the result to succesors/outgoing objects.

virtual int spikeHit (spikeport_t port, SpikeEvent const &spike)

virtual int psrLength (double dt) const

The lengh of the postsynaptic response (in time steps).

Public Attributes

float tau1

The rise time constant $\tau_1$ .

float tau2

The fall time constant $\tau_2$ .

Detailed Description

Definition at line 6 of file DoubleExponentialSpikeResponse.h.

Constructor & Destructor Documentation

DoubleExponentialSpikeResponse::DoubleExponentialSpikeResponse	(	const float	tau1 = `1e-3`,
		const float	tau2 = `3e-3`
	)			`[inline]`

Definition at line 12 of file DoubleExponentialSpikeResponse.h.

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

Definition at line 18 of file DoubleExponentialSpikeResponse.h.

Member Function Documentation

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

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

Reimplemented from SimObject.

Reimplemented in GenericGABASynapse< DoubleExponentialSpikeResponse >, and GenericGlutamateSynapse< DoubleExponentialSpikeResponse >.

Definition at line 4 of file DoubleExponentialSpikeResponse.cpp.

References tau1, and tau2.

Referenced by reset().

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

Called at the beginning of a simulation at t=0.

Reimplemented from FiniteSpikeResponse.

Definition at line 22 of file DoubleExponentialSpikeResponse.cpp.

References adjust(), FiniteSpikeResponse::psr, and FiniteSpikeResponse::reset().

Referenced by StaticGlutamateDoubleExpSynapse::reset(), DynamicGlutamateDoubleExpSynapse::reset(), StaticGABADoubleExpSynapse::reset(), and DynamicGABADoubleExpSynapse::reset().

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int DoubleExponentialSpikeResponse::advance ( AdvanceInfo const & ) [virtual]

Calculate the next state and output/propagate the result to succesors/outgoing objects.

The return value of advance contains several bits of information which can be decoded with the bit masks ADVANCEFLAG_* like ADVANCEFLAG_HASSPIKED and ADVANCEFLAG_DEACTIVATE.

Reimplemented from SimObject.

Reimplemented in GenericConductanceBasedSpikingSynapse< DoubleExponentialSpikeResponse >, GenericCurrentBasedSpikingSynapse< DoubleExponentialSpikeResponse >, GenericGABASynapse< DoubleExponentialSpikeResponse >, GenericGlutamateSynapse< DoubleExponentialSpikeResponse >, and GenericNMDASynapse< DoubleExponentialSpikeResponse >.

Definition at line 30 of file DoubleExponentialSpikeResponse.cpp.

References FiniteSpikeResponse::advanceReturn(), and FiniteSpikeResponse::psr.

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int DoubleExponentialSpikeResponse::spikeHit	(	spikeport_t	port,
		SpikeEvent const &	spike
	)			`[virtual]`

Function to be called if the object is hit by a spike Called by spike exchange mechanims if a spike hits (arrives at) the object A return value of greater 0 indicates that the object is currently not active and the sim engine has to put this object into its list of active spike receivers. A return value of 0 indicates the the object is currently active (i.e. is already in the list of active receviers) and need not to be put into the list of active synapses.

Reimplemented from SimObject.

Definition at line 38 of file DoubleExponentialSpikeResponse.cpp.

References SpikeEvent::delta, SpikeEvent::dt, FiniteSpikeResponse::psr, FiniteSpikeResponse::spikeHitReturn(), and SpikeEvent::weight.

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int DoubleExponentialSpikeResponse::psrLength ( double dt ) const [virtual]

The lengh of the postsynaptic response (in time steps).

Here we choose this to be PSR_MULTIPLE_TAU * tau / DT() where PSR_MULTIPLE_TAU (e.g. 5) is set in globaldefinitions.h.

Implements FiniteSpikeResponse.

Reimplemented in GenericGlutamateSynapse< DoubleExponentialSpikeResponse >.

Definition at line 49 of file DoubleExponentialSpikeResponse.cpp.

References PSR_MULTIPLE_TAU, tau1, and tau2.

Member Data Documentation

float DoubleExponentialSpikeResponse::tau1

The rise time constant $\tau_1$ .

Definition at line 19 of file DoubleExponentialSpikeResponse.h.

Referenced by adjust(), DynamicCondDoubleExpSynapse::DynamicCondDoubleExpSynapse(), DynamicCurrDoubleExpSynapse::DynamicCurrDoubleExpSynapse(), DynamicGABADoubleExpSynapse::DynamicGABADoubleExpSynapse(), DynamicGlutamateDoubleExpSynapse::DynamicGlutamateDoubleExpSynapse(), DynamicNMDADoubleExpSynapse::DynamicNMDADoubleExpSynapse(), FacetsHWDepressionSynapse::FacetsHWDepressionSynapse(), FacetsHWFacilitationSynapse::FacetsHWFacilitationSynapse(), psrLength(), StaticGlutamateDoubleExpSynapse::reset(), DynamicGlutamateDoubleExpSynapse::reset(), StaticGABADoubleExpSynapse::reset(), DynamicGABADoubleExpSynapse::reset(), StaticCondDoubleExpSynapse::StaticCondDoubleExpSynapse(), StaticCurrDoubleExpSynapse::StaticCurrDoubleExpSynapse(), StaticGABADoubleExpSynapse::StaticGABADoubleExpSynapse(), StaticGlutamateDoubleExpSynapse::StaticGlutamateDoubleExpSynapse(), and StaticNMDADoubleExpSynapse::StaticNMDADoubleExpSynapse().

float DoubleExponentialSpikeResponse::tau2

The fall time constant $\tau_2$ .

Definition at line 25 of file DoubleExponentialSpikeResponse.h.

Referenced by adjust(), DynamicCondDoubleExpSynapse::DynamicCondDoubleExpSynapse(), DynamicCurrDoubleExpSynapse::DynamicCurrDoubleExpSynapse(), DynamicGABADoubleExpSynapse::DynamicGABADoubleExpSynapse(), DynamicGlutamateDoubleExpSynapse::DynamicGlutamateDoubleExpSynapse(), DynamicNMDADoubleExpSynapse::DynamicNMDADoubleExpSynapse(), FacetsHWDepressionSynapse::FacetsHWDepressionSynapse(), FacetsHWFacilitationSynapse::FacetsHWFacilitationSynapse(), psrLength(), StaticGlutamateDoubleExpSynapse::reset(), DynamicGlutamateDoubleExpSynapse::reset(), StaticGABADoubleExpSynapse::reset(), DynamicGABADoubleExpSynapse::reset(), StaticCondDoubleExpSynapse::StaticCondDoubleExpSynapse(), StaticCurrDoubleExpSynapse::StaticCurrDoubleExpSynapse(), StaticGABADoubleExpSynapse::StaticGABADoubleExpSynapse(), StaticGlutamateDoubleExpSynapse::StaticGlutamateDoubleExpSynapse(), and StaticNMDADoubleExpSynapse::StaticNMDADoubleExpSynapse().

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

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


Public Member Functions
	DoubleExponentialSpikeResponse (const float tau1=1e-3, const float tau2=3e-3)
virtual	~DoubleExponentialSpikeResponse ()
virtual int	adjust (double dt)
	This tells the object that it should adjust to a new simulation time step width.
virtual int	reset (double dt)
	Called at the beginning of a simulation at t=0.
virtual int	advance (AdvanceInfo const &)
	Calculate the next state and output/propagate the result to succesors/outgoing objects.
virtual int	spikeHit (spikeport_t port, SpikeEvent const &spike)
virtual int	psrLength (double dt) const
	The lengh of the postsynaptic response (in time steps).
Public Attributes
float	tau1
	The rise time constant $\tau_1$ .
float	tau2
	The fall time constant $\tau_2$ .