Formalism of synaptic plasticity, Physics

(a) Equation (3) may be viewed as a formalism of synaptic plasticity - the synapse is able to change in strength in response to either use or disuse of it.

We can observe the steady state starting from the third iteration.

(c) If a weight settles at a fixed value this value is a balance between excitation and inhibition, because the rate of decreasing equals the rate of increasing of the weight value.

We can see for x = 4 w decreases without bound.

Excitatory influence is zero in this case, and inhibitory influence is positive, so the weight decreases. The formulation biased in inhibition direction.

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