IzhikevichGroup.h

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/* 
* Copyright 2014-2018 Friedemann Zenke
*
* This file is part of Auryn, a simulation package for plastic
* spiking neural networks.
* 
* Auryn is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* 
* Auryn is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
* 
* You should have received a copy of the GNU General Public License
* along with Auryn.  If not, see <http://www.gnu.org/licenses/>.
*
* If you are using Auryn or parts of it for your work please cite:
* Zenke, F. and Gerstner, W., 2014. Limits to high-speed simulations 
* of spiking neural networks using general-purpose computers. 
* Front Neuroinform 8, 76. doi: 10.3389/fninf.2014.00076
*/

#ifndef IZHIKEVICHGROUP_H_
#define IZHIKEVICHGROUP_H_

#include "auryn_definitions.h"
#include "AurynVector.h"
#include "NeuronGroup.h"
#include "System.h"

namespace auryn {

class IzhikevichGroup : public NeuronGroup
{
private:
        AurynStateVector * adaptation_vector;
        AurynStateVector * temp_vector;
        AurynStateVector * cur_exc, * cur_inh;

        AurynFloat e_rev_gaba,thr;
        AurynFloat tau_ampa,tau_gaba;
        AurynFloat scale_ampa, scale_gaba;

        void init();
        void calculate_scale_constants();
        inline void integrate_state();
        inline void check_thresholds();
        virtual string get_output_line(NeuronID i);
        virtual void load_input_line(NeuronID i, const char * buf);

        void virtual_serialize(boost::archive::binary_oarchive & ar, const unsigned int version );
        void virtual_serialize(boost::archive::binary_iarchive & ar, const unsigned int version );
public:
        IzhikevichGroup(NeuronID size);
        virtual ~IzhikevichGroup();

        AurynFloat avar; 
        AurynFloat bvar; 
        AurynFloat cvar; 
        AurynFloat dvar; 
        void set_tau_ampa(AurynFloat tau);

        AurynFloat get_tau_ampa();

        void set_tau_gaba(AurynFloat tau);

        AurynFloat get_tau_gaba();

        void clear();

        void evolve();
};

}

#endif /*IZHIKEVICHGROUP_H_*/