.. index:: pair: class; WeightUpdateModels::StaticGraded
.. toctree::
:hidden:
Graded-potential, static synapse. :ref:`More...<details-d6/d64/classWeightUpdateModels_1_1StaticGraded>`
.. ref-code-block:: cpp
:class: doxyrest-overview-code-block
#include <weightUpdateModels.h>
class StaticGraded: public :ref:`WeightUpdateModels::Base<doxid-d2/d05/classWeightUpdateModels_1_1Base>`
{
public:
// methods
:target:`DECLARE_WEIGHT_UPDATE_MODEL<doxid-d6/d64/classWeightUpdateModels_1_1StaticGraded_1af74719ff8e1d08a83b88372f52ebd833>`(
StaticGraded,
2,
1,
0,
0
);
virtual :ref:`StringVec<doxid-db/d97/classSnippet_1_1Base_1a06cd0f6da1424a20163e12b6fec62519>` :ref:`getParamNames<doxid-d6/d64/classWeightUpdateModels_1_1StaticGraded_1a275644bd25a6b9446073ac90c0cd46ac>`() const;
virtual :ref:`VarVec<doxid-d6/d97/classModels_1_1Base_1a5a6bc95969a38ac1ac68ab4a0ba94c75>` :ref:`getVars<doxid-d6/d64/classWeightUpdateModels_1_1StaticGraded_1ae6bbca6784c1a6fc51b8eee7d0362660>`() const;
virtual std::string :ref:`getEventCode<doxid-d6/d64/classWeightUpdateModels_1_1StaticGraded_1a4358fcaf3d6c2b05705370f5fd601882>`() const;
virtual std::string :ref:`getEventThresholdConditionCode<doxid-d6/d64/classWeightUpdateModels_1_1StaticGraded_1a403cb623a28d4c89eb1097c48bb6210e>`() const;
};
.. ref-code-block:: cpp
:class: doxyrest-overview-inherited-code-block
public:
// typedefs
typedef std::vector<std::string> :ref:`StringVec<doxid-db/d97/classSnippet_1_1Base_1a06cd0f6da1424a20163e12b6fec62519>`;
typedef std::vector<:ref:`EGP<doxid-dd/d5d/structSnippet_1_1Base_1_1EGP>`> :ref:`EGPVec<doxid-db/d97/classSnippet_1_1Base_1a43ece29884e2c6cabffe9abf985807c6>`;
typedef std::vector<:ref:`ParamVal<doxid-d7/dda/structSnippet_1_1Base_1_1ParamVal>`> :ref:`ParamValVec<doxid-db/d97/classSnippet_1_1Base_1a0156727ddf8f9c9cbcbc0d3d913b6b48>`;
typedef std::vector<:ref:`DerivedParam<doxid-d9/d0c/structSnippet_1_1Base_1_1DerivedParam>`> :ref:`DerivedParamVec<doxid-db/d97/classSnippet_1_1Base_1ad14217cebf11eddffa751a4d5c4792cb>`;
typedef std::vector<:ref:`Var<doxid-d5/d42/structModels_1_1Base_1_1Var>`> :ref:`VarVec<doxid-d6/d97/classModels_1_1Base_1a5a6bc95969a38ac1ac68ab4a0ba94c75>`;
// structs
struct :ref:`DerivedParam<doxid-d9/d0c/structSnippet_1_1Base_1_1DerivedParam>`;
struct :ref:`EGP<doxid-dd/d5d/structSnippet_1_1Base_1_1EGP>`;
struct :ref:`ParamVal<doxid-d7/dda/structSnippet_1_1Base_1_1ParamVal>`;
struct :ref:`Var<doxid-d5/d42/structModels_1_1Base_1_1Var>`;
// methods
virtual :ref:`~Base<doxid-db/d97/classSnippet_1_1Base_1a17a9ca158277401f2c190afb1e791d1f>`();
virtual :ref:`StringVec<doxid-db/d97/classSnippet_1_1Base_1a06cd0f6da1424a20163e12b6fec62519>` :ref:`getParamNames<doxid-db/d97/classSnippet_1_1Base_1a0c8374854fbdc457bf0f75e458748580>`() const;
virtual :ref:`DerivedParamVec<doxid-db/d97/classSnippet_1_1Base_1ad14217cebf11eddffa751a4d5c4792cb>` :ref:`getDerivedParams<doxid-db/d97/classSnippet_1_1Base_1ab01de002618efa59541c927ffdd463f5>`() const;
virtual :ref:`VarVec<doxid-d6/d97/classModels_1_1Base_1a5a6bc95969a38ac1ac68ab4a0ba94c75>` :ref:`getVars<doxid-d6/d97/classModels_1_1Base_1a9df8ba9bf6d971a574ed4745f6cf946c>`() const;
virtual :ref:`EGPVec<doxid-db/d97/classSnippet_1_1Base_1a43ece29884e2c6cabffe9abf985807c6>` :ref:`getExtraGlobalParams<doxid-d6/d97/classModels_1_1Base_1a7fdddb7d19382736b330ade62c441de1>`() const;
size_t :ref:`getVarIndex<doxid-d6/d97/classModels_1_1Base_1afa0e39df5002efc76448e180f82825e4>`(const std::string& varName) const;
size_t :ref:`getExtraGlobalParamIndex<doxid-d6/d97/classModels_1_1Base_1ae046c19ad56dfb2808c5f4d2cc7475fe>`(const std::string& paramName) const;
virtual std::string :ref:`getSimCode<doxid-d2/d05/classWeightUpdateModels_1_1Base_1aff2152fb55b5b0148491ca4eed9291eb>`() const;
virtual std::string :ref:`getEventCode<doxid-d2/d05/classWeightUpdateModels_1_1Base_1a090f5529defe517fabf84c543209406f>`() const;
virtual std::string :ref:`getLearnPostCode<doxid-d2/d05/classWeightUpdateModels_1_1Base_1abd6d3ec97fb1da0f5750f71c7afc09b1>`() const;
virtual std::string :ref:`getSynapseDynamicsCode<doxid-d2/d05/classWeightUpdateModels_1_1Base_1a307cb4e18479682b74972257c5d28dc5>`() const;
virtual std::string :ref:`getEventThresholdConditionCode<doxid-d2/d05/classWeightUpdateModels_1_1Base_1a3157e0e66cdc654be4ef4ad67024f84d>`() const;
virtual std::string :ref:`getSimSupportCode<doxid-d2/d05/classWeightUpdateModels_1_1Base_1a948b94c553782e9cc05a59bda014fe26>`() const;
virtual std::string :ref:`getLearnPostSupportCode<doxid-d2/d05/classWeightUpdateModels_1_1Base_1af98ae8f3d545f8d66d0f80662bf5b322>`() const;
virtual std::string :ref:`getSynapseDynamicsSuppportCode<doxid-d2/d05/classWeightUpdateModels_1_1Base_1a7aae3190642d0bbe7f3f6fa01021783f>`() const;
virtual std::string :ref:`getPreSpikeCode<doxid-d2/d05/classWeightUpdateModels_1_1Base_1a79e16d6c154e21a8ca7e56599cbe553b>`() const;
virtual std::string :ref:`getPostSpikeCode<doxid-d2/d05/classWeightUpdateModels_1_1Base_1abb81b1a933f13ba2af62c088387e186f>`() const;
virtual :ref:`VarVec<doxid-d6/d97/classModels_1_1Base_1a5a6bc95969a38ac1ac68ab4a0ba94c75>` :ref:`getPreVars<doxid-d2/d05/classWeightUpdateModels_1_1Base_1a949a9adcbc40d4ae9bbb51b2ec08dff5>`() const;
virtual :ref:`VarVec<doxid-d6/d97/classModels_1_1Base_1a5a6bc95969a38ac1ac68ab4a0ba94c75>` :ref:`getPostVars<doxid-d2/d05/classWeightUpdateModels_1_1Base_1a97a0a4fb30a66bb629cd88306e659105>`() const;
virtual bool :ref:`isPreSpikeTimeRequired<doxid-d2/d05/classWeightUpdateModels_1_1Base_1a86fb753d87f35b53d789f96c6189a911>`() const;
virtual bool :ref:`isPostSpikeTimeRequired<doxid-d2/d05/classWeightUpdateModels_1_1Base_1ad93200ea885e60a88c108db10349edea>`() const;
size_t :ref:`getPreVarIndex<doxid-d2/d05/classWeightUpdateModels_1_1Base_1ac8b3e37eeb3f0034ebba50ec01c2840e>`(const std::string& varName) const;
size_t :ref:`getPostVarIndex<doxid-d2/d05/classWeightUpdateModels_1_1Base_1a5812718ff39cc394f1c6242e3d3f0987>`(const std::string& varName) const;
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 ofscalartype
The parameters are:
Epre:Presynaptic threshold potentialVslope:Activation slope of graded release
event code is:
.. ref-code-block:: cpp
$(addToInSyn, $(g)* tanh(($(V_pre)-($(Epre)))*DT*2/$(Vslope)));
event threshold condition code is:
.. ref-code-block:: cpp
$(V_pre) > $(Epre)
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.
.. index:: pair: function; getParamNames
.. ref-code-block:: cpp
:class: doxyrest-title-code-block
virtual :ref:`StringVec<doxid-db/d97/classSnippet_1_1Base_1a06cd0f6da1424a20163e12b6fec62519>` getParamNames() const
Gets names of of (independent) model parameters.
.. index:: pair: function; getVars
.. ref-code-block:: cpp
:class: doxyrest-title-code-block
virtual :ref:`VarVec<doxid-d6/d97/classModels_1_1Base_1a5a6bc95969a38ac1ac68ab4a0ba94c75>` getVars() const
Gets names and types (as strings) of model variables.
.. index:: pair: function; getEventCode
.. ref-code-block:: cpp
:class: doxyrest-title-code-block
virtual std::string getEventCode() const
Gets code run when events (all the instances where event threshold condition is met) are received.
.. index:: pair: function; getEventThresholdConditionCode
.. ref-code-block:: cpp
:class: doxyrest-title-code-block
virtual std::string getEventThresholdConditionCode() const
Gets codes to test for events.