Spike Timing Dependent PlASTICITY
A variant on the Hebb rule for synapses between
spiking neurons, where the relative timing of pre and post-synaptic
spikes determines whether the synapse is strengthened or
weakened. When the pre-synaptic neurons spikes before the
post-synaptic neuron, the weight is strengthened. When the
pre-synaptic spike occurs after the post-synaptic spike, the weight is
weakened.
Source: Thivierge, Scholarpedia article.
TODO: Equation. Link to article. Note that if post and / or (?) pre-synaptic neuron is not spiking, then this behaves like a clamped synapse.
Tau +/-
Time course of plasticity for LTP and LTDP
W +/-
Magnitude of change in synaptic efficacy for LTP and LTD. Also called A+/A-.
Learning rate
Multiplied by delta-w in every time step to control how quickly the synapse changes.