auryn::ExpCobaSynapse Class Reference

Implements an exponential conductance-based synapse model. More...

#include <ExpCobaSynapse.h>

Inheritance diagram for auryn::ExpCobaSynapse:

Collaboration diagram for auryn::ExpCobaSynapse:

Public Member Functions
	ExpCobaSynapse (NeuronGroup *parent, AurynStateVector *input, AurynStateVector *output)
virtual	~ExpCobaSynapse ()
void	set_tau (const AurynState tau)
	Sets synaptic decay time scale. More...
void	set_e_rev (const AurynState reversal_pot)
	Sets reversal potential. More...
virtual void	evolve ()
Public Member Functions inherited from auryn::SynapseModel
	SynapseModel (NeuronGroup *parent, AurynStateVector *input, AurynStateVector *output)

Additional Inherited Members
Protected Attributes inherited from auryn::SynapseModel
NeuronGroup *	parent_group
AurynStateVector *	input_state
AurynStateVector *	output_state

Detailed Description

Implements an exponential conductance-based synapse model.

Default timescale is 5e-3s. We interpret input state as the neurotransmitter concentration which decays exponentially. The output state is interpreted as a current which results from multiplying the potential difference with the neurotransmitter concentration of input state.

Note that output state is overwritten in each round and needs to be added to the membrane potential in the parents evolve function.

Constructor & Destructor Documentation

ExpCobaSynapse()

ExpCobaSynapse::ExpCobaSynapse	(	NeuronGroup *	parent,
		AurynStateVector *	input,
		AurynStateVector *	output
	)

        : SynapseModel( parent, input, output )
{
        if ( input == output ) {
                logger->warning("ExpCobaSynapse requires input and output state to be different!");
        }

        set_tau(5e-3); // sets a default timescale
        set_e_rev(0.0); // sets default reversal potential
}

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~ExpCobaSynapse()

ExpCobaSynapse::~ExpCobaSynapse ( )

virtual

{
}

Member Function Documentation

evolve()

void ExpCobaSynapse::evolve ( )

virtual

Implements auryn::SynapseModel.

{
        output_state->diff(e_rev, parent_group->mem);
        output_state->mul(input_state);
        input_state->scale(mul_syn);
}

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set_e_rev()

void ExpCobaSynapse::set_e_rev

(

const AurynState

reversal_pot

)

Sets reversal potential.

{
        e_rev = reversal_pot;
}

set_tau()

void ExpCobaSynapse::set_tau

(

const AurynState

tau

)

Sets synaptic decay time scale.

{
        tau_syn = tau;
        mul_syn = std::exp(-auryn_timestep/tau_syn);
}

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

• /home/zenke/auryn/src/auryn/ExpCobaSynapse.h
• /home/zenke/auryn/src/auryn/ExpCobaSynapse.cpp