Pair STDP
Classical spike-timing-dependent plasticity. Pre-before-post potentiates, post-before-pre depresses.
Triplet STDP
Pfister-Gerstner 2006. Triplet interactions capture frequency dependence missing in pair STDP.
Voltage STDP
Clopath et al. 2010. Uses postsynaptic voltage traces instead of spike times.
R-STDP
Reward-modulated STDP. Eligibility trace + global reward signal gates plasticity.
BCM
Bienenstock-Cooper-Munro. Sliding threshold separates LTP from LTD.
BPTT / TBPTT
Backpropagation through time with surrogate gradients. 6 surrogate functions.
E-Prop
Eligibility propagation (Bellec et al. 2020). Online learning without full BPTT.
EWC
Elastic Weight Consolidation. Prevents catastrophic forgetting via Fisher penalty.
MAML
Model-Agnostic Meta-Learning. Few-shot adaptation of SNN parameters.
Homeostatic
Intrinsic excitability regulation. Target firing rate maintained via threshold adaptation.
STP
Short-term plasticity: facilitation and depression. Tsodyks-Markram dynamics.
Structural
Synapse creation and pruning based on activity. Dynamic connectivity rewiring.
Dopamine STDP
Neuromodulated plasticity. Dopamine gates eligibility trace conversion to weight change.