Table 1.

Model parameters used for simulations

Symbol	Definition	Value
Ne	No. of excitatory neurons	800
Ni	No. of inhibitory neurons	200
p	Connection probability	0.8
f	Response function	(1 + exp[−ϵμ])−1
ϵ	Response gain	25
βe	Firing rate gain of excitatory cells	1 s−1
βi	Firing rate gain of inhibitory cells	2 s−1
αe	Membrane time scale of excitatory population	10 ms
αi	Membrane time scale of inhibitory population	5 ms
ge	Excitatory membrane leak constant	−0.65
gi	Inhibitory membrane leak constant	−0.65
wee	Synaptic gain e → e	26.0
wei	Synaptic gain e → i	26.0
wie	Synaptic gain i → e	−32.0
wii	Synaptic gain i → i	−1.5
G	Feedback gain	−5
Io,e	Bias potential excitatory cells	0.0
Io,i	Bias potential inhibitory cells	−0.2
D	Noise intensity	0.0015