Graded-potential, static synapse. More...

#include <weightUpdateModels.h>

Inheritance diagram for WeightUpdateModels::StaticGraded:

Public Member Functions
	DECLARE_WEIGHT_UPDATE_MODEL (StaticGraded, 2, 1, 0, 0)

virtual StringVec	getParamNames () const override
	Gets names of of (independent) model parameters. More...

virtual VarVec	getVars () const override
	Gets names and types (as strings) of model variables. More...

virtual std::string	getEventCode () const override
	Gets code run when events (all the instances where event threshold condition is met) are received. More...

virtual std::string	getEventThresholdConditionCode () const override
	Gets codes to test for events. More...

Public Member Functions inherited from WeightUpdateModels::Base
virtual std::string	getSimCode () const
	Gets simulation code run when 'true' spikes are received. More...

virtual std::string	getLearnPostCode () const
	Gets code to include in the learnSynapsesPost kernel/function. More...

virtual std::string	getSynapseDynamicsCode () const
	Gets code for synapse dynamics which are independent of spike detection. More...

virtual std::string	getSimSupportCode () const
	Gets support code to be made available within the synapse kernel/function. More...

virtual std::string	getLearnPostSupportCode () const
	Gets support code to be made available within learnSynapsesPost kernel/function. More...

virtual std::string	getSynapseDynamicsSuppportCode () const
	Gets support code to be made available within the synapse dynamics kernel/function. More...

virtual std::string	getPreSpikeCode () const

virtual std::string	getPostSpikeCode () const

virtual std::string	getPreDynamicsCode () const
	Gets code to be run after presynaptic neuron update. More...

virtual std::string	getPostDynamicsCode () const
	Gets code to be run after postsynaptic neuron update. More...

virtual VarVec	getPreVars () const

virtual VarVec	getPostVars () const

virtual bool	isPreSpikeTimeRequired () const
	Whether presynaptic spike times are needed or not. More...

virtual bool	isPostSpikeTimeRequired () const
	Whether postsynaptic spike times are needed or not. More...

virtual bool	isPreSpikeEventTimeRequired () const
	Whether presynaptic spike-like-event times are needed or not. More...

virtual bool	isPrevPreSpikeTimeRequired () const
	Whether PREVIOUS presynaptic spike times are needed or not. More...

virtual bool	isPrevPostSpikeTimeRequired () const
	Whether PREVIOUS postsynaptic spike times are needed or not. More...

virtual bool	isPrevPreSpikeEventTimeRequired () const
	Whether PREVIOUS presynaptic spike-like-event times are needed or not. More...

size_t	getPreVarIndex (const std::string &varName) const
	Find the index of a named presynaptic variable. More...

size_t	getPostVarIndex (const std::string &varName) const
	Find the index of a named postsynaptic variable. More...

boost::uuids::detail::sha1::digest_type	getHashDigest () const
	Update hash from model. More...

void	validate () const
	Validate names of parameters etc. More...

Public Member Functions inherited from Models::Base
size_t	getVarIndex (const std::string &varName) const
	Find the index of a named variable. More...

Public Member Functions inherited from Snippet::Base
virtual	~Base ()

virtual DerivedParamVec	getDerivedParams () const

virtual EGPVec	getExtraGlobalParams () const

size_t	getExtraGlobalParamIndex (const std::string &paramName) const
	Find the index of a named extra global parameter. More...

Additional Inherited Members
Public Types inherited from Models::Base
typedef std::vector< Var >	VarVec

typedef std::vector< VarRef >	VarRefVec

typedef std::vector< EGPRef >	EGPRefVec

Public Types inherited from Snippet::Base
typedef std::vector< std::string >	StringVec

typedef std::vector< EGP >	EGPVec

typedef std::vector< ParamVal >	ParamValVec

typedef std::vector< DerivedParam >	DerivedParamVec

Protected Member Functions inherited from Models::Base
void	updateHash (boost::uuids::detail::sha1 &hash) const

void	validate () const
	Validate names of parameters etc. More...

Protected Member Functions inherited from Snippet::Base
void	updateHash (boost::uuids::detail::sha1 &hash) const

void	validate () const
	Validate names of parameters etc. More...

Static Protected Member Functions inherited from Snippet::Base
template<typename T >
static size_t	getNamedVecIndex (const std::string &name, const std::vector< T > &vec)

Detailed Description

Graded-potential, static synapse.

In a graded synapse, the conductance is updated gradually with the rule:

$gSyn= g * tanh((V - E_{pre}) / V_{slope}$

whenever the membrane potential $V$ is larger than the threshold $E_{pre}$ . The model has 1 variable:

g: conductance of scalar type

The parameters are:

Epre: Presynaptic threshold potential
Vslope: Activation slope of graded release

event code is:

$(addToInSyn, $(g)* tanh(($(V_pre)-($(Epre)))*DT*2/$(Vslope)));

event threshold condition code is:

$(V_pre) > $(Epre)

Note: The pre-synaptic variables are referenced with the suffix _pre in synapse related code such as an the event threshold test. Users can also access post-synaptic neuron variables using the suffix _post.

Member Function Documentation

◆ DECLARE_WEIGHT_UPDATE_MODEL()

WeightUpdateModels::StaticGraded::DECLARE_WEIGHT_UPDATE_MODEL	(	StaticGraded	,
		2	,
		1	,
		0	,
		0
	)

◆ getEventCode()

virtual std::string WeightUpdateModels::StaticGraded::getEventCode ( ) const

inlineoverridevirtual

Gets code run when events (all the instances where event threshold condition is met) are received.

Reimplemented from WeightUpdateModels::Base.

◆ getEventThresholdConditionCode()

virtual std::string WeightUpdateModels::StaticGraded::getEventThresholdConditionCode ( ) const

inlineoverridevirtual

Gets codes to test for events.

Reimplemented from WeightUpdateModels::Base.

◆ getParamNames()

virtual StringVec WeightUpdateModels::StaticGraded::getParamNames ( ) const

inlineoverridevirtual

Gets names of of (independent) model parameters.

Reimplemented from Snippet::Base.

◆ getVars()

virtual VarVec WeightUpdateModels::StaticGraded::getVars ( ) const

inlineoverridevirtual

Gets names and types (as strings) of model variables.

Reimplemented from Models::Base.

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

weightUpdateModels.h

Public Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ DECLARE_WEIGHT_UPDATE_MODEL()

◆ getEventCode()

◆ getEventThresholdConditionCode()

◆ getParamNames()

◆ getVars()