Table 3.

Synaptic depression and facilitation parameters used to simulate the spiking model (Figs. 2–4, 9, 11, 13, 14)^a

Parameter	Value	Definition
ηD	0.18	Depression rate of connection $B\to A$
τD	0.25 s	Synaptic depression time constant of connection $B\to A$
ηF	0.15	Facilitation rate of connection $P\to A$
τF	0.25 s	Synaptic facilitation time constant of connection $P\to A$
zmax	1	Upper bound for increase in facilitation of connection $P\to A$

^aFor the simulations in Figure 15, we use ${\eta }_F=0.32$ and ${\tau }_F=230$ ms. For details, see Eqs. 3, 4.