Table 3.

Effects of intra-Str injections of muscimol and methyl l-DOPA on response parameters of MC-responsive GPe neurons

	Muscimol (N = 6)			Methyl-l-DOPA (N = 6)
	Before		After	Before		After
Average firing rate	28.3 ± 5.8	p < 0.02	42.4 ± 9.7	28.7 ± 8.6	P < 0.05	40.6 ± 13.6
Burst index, %	38.9 ± 13.5	p < 0.001	17.1 ± 2.2	43.0 ± 8.2	P < 0.005	25.9 ± 11.0
Early excitation, n	6		6	6		1
Latency (ms)	7.3 ± 1.0	ns	8.0 ± 1.7	7.3 ± 1.5	—-	8.2
Duration (ms)	3.7 ± 0.8	ns	4.2 ± 0.9	3.5 ± 0.8	—-	5.2
Strength (spikes)	14.6 ± 3.7	ns	21.5 ± 11.2	12.1 ± 2.6	—-	15.2
Short inhibition	6		0	6		6
Latency	15.0 ± 2.3			14.7 ± 1.5	ns	16.2 ± 2.0
Duration	11.0 ± 4.6			14.2 ± 2.0	P < 0.005	10.0 ± 1.1
Strength	31.2 ± 8.4			40.3 ± 13.7	ns	38.1 ± 12.8
Late excitation	6		6	6		6
Latency	34.0 ± 4.3	ns	31.2 ± 8.4	34.2 ± 5.2	ns	38.7 ± 10.8
Duration	80.0 ± 33.6	p < 0.005	23.8 ± 8.9	153.2 ± 45.4	P < 0.02	66.2 ± 38.3
Strength	214.9 ± 102.7	p < 0.02	100.5 ± 54.1	457.2 ± 189.8	P < 0.02	222.2 ± 116.2

Statistics: Paired t test. ns, Not significant; —-, not compared.