Table 1.

Model parameters

Symbol	Description	Value
	Network architecture
NES = NIS	No. of excitatory and inhibitory neurons in striate cortex	161
NEX	No. of excitatory neurons in extrastriate cortex	33
	Size of simulated visual field representation	16 deg
	Connectivity
λSS	Scale of lateral connections	2.3 deg−1
λXS = λSX	Scale of interareal connections	0.3 deg−1
νS→S	Conduction velocity of lateral connections	200 mm/s
νS→X	Conduction velocity of interareal connections	4000 mm/s
ΔχS→X	Distance between V1 and extrastriate area MT	7 mm
ςaff	Spatial spread of afferent input	0.1 deg
	Firing rate functions
aE	Parameter for excitatory neurons	70.09 sp/s (nA)−1
ΔIE	Threshold for the excitatory neurons	0.52 nA
aI	Parameter for inhibitory neurons	131 sp/s (nA)−1
bI	Parameter for inhibitory neurons	−28 sp/s (nA)−2
ΔII	Threshold for the inhibitory neurons	0.70 nA
	Strengths
WEESS	Lateral excitation of excitatory neurons	3.38 × 10−4
WIESS	Lateral excitation of inhibitory neurons	34 × 10−4
WEEXS = WEESX	Interareal excitation	4.52 × 10−4
WEES	Local excitation of excitatory neurons	85 × 10−4
WIES	Local excitation of inhibitory neurons	34 × 10−4
WEIS	Local inhibition of excitatory neurons	−122 × 10−4
WIIS	Local inhibition of inhibitory neurons	−12 × 10−4

No., Number.