Command: stdp_triplet_synapse

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Name:
stdp_triplet_synapse - Synapse type with spike-timing dependent
plasticity (triplets).
Description:
stdp_triplet_synapse is a connection with spike time dependent
plasticity accounting for spike triplet effects (as defined in [1]).

STDP examples:
pair-based Aplus_triplet = Aminus_triplet = 0.0
triplet Aplus_triplet = Aminus_triplet = 1.0
Parameters:
\verbatim embed:rst
================= ====== ===========================================
tau_plus real Time constant of short presynaptic trace
(tau_plus of [1])
tau_plus_triplet real Time constant of long presynaptic trace
(tau_x of [1])
Aplus real Weight of pair potentiation rule
(A_plus_2 of [1])
Aplus_triplet real Weight of triplet potentiation rule
(A_plus_3 of [1])
Aminus real Weight of pair depression rule
(A_minus_2 of [1])
Aminus_triplet real Weight of triplet depression rule
(A_minus_3 of [1])
Wmax real Maximum allowed weight
================= ====== ===========================================

=============== ====== ===========================================
**States**
-------------------------------------------------------------------
Kplus real Pre-synaptic trace (r_1 of [1])
Kplus_triplet real Triplet pre-synaptic trace (r_2 of [1])
=============== ====== ===========================================
\endverbatim
Transmits:
SpikeEvent
References:
\verbatim embed:rst
.. [1] Pfister JP, Gerstner W (2006). Triplets of spikes in a model
of spike timing-dependent plasticity. The Journal of Neuroscience
26(38):9673-9682. DOI: https://doi.org/10.1523/JNEUROSCI.1425-06.2006
\endverbatim

Notes:
• Presynaptic traces r_1 and r_2 of [1] are stored in the connection as
Kplus and Kplus_triplet and decay with time-constants tau_plus and
tau_plus_triplet, respectively.
• Postsynaptic traces o_1 and o_2 of [1] are acquired from the post-synaptic
neuron states Kminus_ and triplet_Kminus_ which decay on time-constants
tau_minus and tau_minus_triplet, respectively. These two time-constants
can be set as properties of the postsynaptic neuron.
• This version implements the 'all-to-all' spike interaction of [1]. The
'nearest-spike' interaction of [1] can currently not be implemented
without changing the postsynaptic archiving-node (clip the traces to a
maximum of 1).
Author:
Abigail Morrison, Eilif Muller, Alexander Seeholzer, Teo Stocco
Adapted by: Philipp Weidel
FirstVersion:
Nov 2007
SeeAlso:
Source:
/var/www/debian/nest/nest-simulator-2.18.0/models/stdp_triplet_connection.h
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