Table 1.

Effects of group II and group III agonists on EPSCs in the three CF regions of the nucleus laminaris

					In the presence of DCG-IV
CF region		Control	DCG-IV	DCG-IV/Control	Control	l-AP4	l-AP4/Control
High	Amplitude of 1st EPSC (nA)	2.25 ± 0.82 (6)	1.69 ± 0.69 (6)*	0.75	2.64 ± 0.62 (4)	2.28 ± 0.65 (4)	0.87
	CV	0.09 ± 0.02 (6)	0.12 ± 0.02 (6)	1.31	0.08 ± 0.01 (4)	0.09 ± 0.01 (4)	1.05
	PPR	0.89 ± 0.12 (3)	0.88 ± 0.09 (3)	0.98	0.58 ± 0.04 (4)	0.68 ± 0.03 (4)	1.16
Middle	Amplitude of 1st EPSC (nA)	1.35 ± 0.46 (6)	0.75 ± 0.29 (6)*	0.56	2.48 ± 0.52 (4)	1.68 ± 0.43 (4)*	0.68
	CV	0.11 ± 0.02 (5)	0.15 ± 0.03 (5)*	1.44	0.12 ± 0.05 (4)	0.18 ± 0.07 (4)*	1.57
	PPR	0.55 ± 0.18 (3)	0.77 ± 0.18 (3)*	1.39	0.67 ± 0.16 (4)	0.90 ± 0.14 (4)	1.34
Low	Amplitude of 1st EPSC (nA)	2.31 ± 0.44 (6)	0.91 ± 0.18 (6)†	0.39	2.01 ± 0.72 (5)	1.18 ± 0.48 (5)*	0.58
	CV	0.09 ± 0.02 (6)	0.18 ± 0.03 (6)†	2.09	0.14 ± 0.03 (5)	0.20 ± 0.04 (5)*	1.49
	PPR	0.70 ± 0.06 (6)	0.93 ± 0.05 (6)†	1.32	0.91 ± 0.10 (5)	1.24 ± 0.15 (5)*	1.37

The effect of l-AP4 was examined in the presence of DCG-IV. CF, characteristic frequency; CV, coefficient of variation; EPSC, excitatory postsynaptic current; PPR, paired pulse ratio. *P < 0.05; †P < 0.01. The number of cells is indicated in parentheses.