Hill-Tononi synapse model

template<typename targetidentifierT>
class HTConnection : public Connection<targetidentifierT>

#include <ht_connection.h>

Name: ht_synapse - Synapse with depression after Hill & Tononi (2005).

Description:

This synapse implements the depression model described in [1, p 1678]. See docs/model_details/HillTononi.ipynb for details.

Synaptic dynamics are given by

\[\begin{split} P'(t) = ( 1 - P ) / \tau_P P(T+) = (1 - \delta_P) P(T-) \text{ for T : time of a spike } \\ P(t=0) = 1 \end{split}\]

\[ w(t) = w_{max} * P(t) \]

is the resulting synaptic weight

Parameters:

The following parameters can be set in the status dictionary:

tau_P	ms	Synaptic vesicle pool recovery time constant
delta_P	real	Fractional change in vesicle pool on incoming spikes (unitless)
P	real	Current size of the vesicle pool [unitless, 0 <= P <= 1]

References:

1

Hill S, Tononi G (2005). Modeling sleep and wakefulness in the thalamocortical system. Journal of Neurophysiology. 93:1671-1698. DOI: https://doi.org/10.1152/jn.00915.2004

Sends: SpikeEvent

FirstVersion: March 2009

Author: Hans Ekkehard Plesser, based on markram_synapse

SeeAlso: ht_neuron, tsodyks_synapse, stdp_synapse, static_synapse