Table 1.

ERG responses

Mice	n	a-wave amplitude, μV	b-wave amplitude, μV	b/a amplitude ratio	OP1 amplitude, μV	OP2 amplitude, μV
Wild type	16	237.5  ± 26.2	461.9  ± 33.8	2.15  ± 0.19	173.8  ± 14.7	264.4  ± 17.7
GLAST −/−	8	253.8  ± 29.6	217.5  ± 30.9*	0.98  ± 0.21*	72.8  ± 7.6*	114.3  ± 12.4*
GLT-1 −/−	4	267.5  ± 66.9	475.0  ± 72.2	2.27  ± 0.78	137.5  ± 18.9	225.0  ± 23.6

All data are expressed as mean ± SEM; ∗, P < 0.005 (two-tailed t test).