Table 5.

Classical and extraclassical surround suppression

	Stimulus	Excitatory field radius, deg ± SD	Inhibitory field radius, deg ± SD	SSI
K-on/off (n = 6)	Uniform	0.29 ± 0.16	0.90 ± 0.57	0.86 ± 0.13
	Grating	0.27 ± 0.10	0.54 ± 0.20	0.85 ± 0.13
K-ori (n = 7)	Uniform	0.52 ± 0.58	3.55 ± 4.90	0.40 ± 0.29
	Grating	0.26 ± 0.17	5.14 ± 4.37	0.11 ± 0.11
P (n = 15)	Uniform	0.16 ± 0.09	1.14 ± 2.88	0.56 ± 0.24
	Grating	0.15 ± 0.09	1.57 ± 3.01	0.33 ± 0.17
M (n = 14)	Uniform	0.08 ± 0.06	0.43 ± 0.31	0.78 ± 0.12
	Grating	0.10 ± 0.06	0.42 ± 0.31	0.49 ± 0.10