Hebbian plasticity by third factors
ヘブの学習則(Hebbian Learning)
のシナプス前後の神経細胞の活動に加えて、
神経修飾物質(neuromodulator)
によるシナプス強度の変化を取り入れた学習則
paper
Neuromodulated spike-timing-dependent plasticity, and theory of three factor learning rules | Front Neural Circuits (2016)
Learning with three factors: modulating Hebbian plasticity with errors | Comput Neurosci (2017)
摂動法(perturbation methods)