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Plasticity

Raul Montoya Cardenas edited this page Aug 8, 2026 · 5 revisions

Plasticity

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Classical Hebbian STDP

Module: hebbian (apply_classical_stdp, StdpParams, HebbianIzhikevichNetwork)

Pre-before-post → LTP; post-before-pre → LTD (standard timing rules).

Example: cargo run --example hebbian_learning.

Reward-modulated STDP (R-STDP)

Module: rm_stdp

Symbol Role
EligibilityTrace Standalone eligibility / credit buffer (not auto-wired into engine apply_stdp)
RmStdpConfig Config
RM_STDP_TAU_PLUS/MINUS Time constants (default 20)
RM_STDP_A_PLUS/MINUS Amplitudes (0.01 / 0.012)
RM_STDP_W_MIN/MAX Weight clamps

EligibilityTrace::decay is unit-tested (coverage added post-0.5.0 tag in #62).

Engine STDP paths during step are influenced by modulator state (e.g. dopamine gating). Full training loops live in plasticity-lab / SynapticDistill.jl — neuromod only provides primitives.

Example: cargo run --example rstdp_demo.

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Last updated: August 8, 2026 Updated by: Grok Build: Grok 4.5 (high) Package tip reference: e59faf1 (main @ 0.5.1 + #91; tag v0.5.1 = 37b0625) Cubic: page-intro Devin DeepWiki: neuromod @ e59faf1

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