Table 2. Neurons and SGCs responding to glutamate or selective agonists with or without specific antagonists using calcium imaging.

Agonist vs. Antagonist+Agonist	Responding Neurons#/total N (%)	Δ 340/380 ratio neurons	Responding SGCs#/total N (%)	Δ 340/380 ratio SGCs
Glutamate	51/56 (91)	12.7±1.8***	34/40 (85)	7.81±1***
AMPA vs. CNQX+AMPA	25/29 (86)	9.8±2.1 vs. 1.0±0.8***	35/37 (95)	11.9±1.7 vs. 1.6±0.8***
NMDA vs. APV+NMDA	12/23 (52)	4.8±0.9 vs. 1.3±0.9**	7/14 (50)	11.1±3.7 vs. 0.9±0.9**
KA vs. UBP310+ KA	11/13 (85)	23.8±8.6 vs. 0.3±1.4**	22/24 (92)	24.8±3.1 vs. 3.6±1.2**
DHPG vs. AP3+ DHPG	20/21 (95)	9.4±2.0 vs. 1.4±1.1***	5/6 (83)	12.2±1.8 vs. 2.1±2.3**

Mean ± S.E.M.

^**P<0.01;

^***P<0.001.