Table 2.

Plasticity parameters for computer simulations.

η	Learning rate	0.002
T	Temperature parameter	0.3
$c_{\mathcal{L}}$	Scale factor of functional plasticity term	1.5
γ	Scale factor for depression of functional plasticity term	0.2
λ	Scale factor for steepness of sigmoid in structural plasticity term	10
cw	Scale factor for steepness of sigmoid in synapse count	0.55 nA^-1
cθ	Slope of θ to w mapping (for θ > 0)	1 nA
$c_{\mathcal{STDP}}$	STDP, LTD factor	3.2
${\mathcal{STDP}}_{\text{th}}$	Threshold for STDP initiation	-67 mV
τx	Time constant of presynaptic trace	20 ms