Table 1. Action potential parameters in control conditions and after drug use.

Drug	Parameter	Control	Effect	P-value	Tendency
A-68930 (300 nM) n = 4	Threshold (mV)	-25 ± 1.5	-24 ± 3.32	0.76	↓
	Amplitude (mV)	132 ± 7	137 ± 11	0.3	↑
	MDR (mV/ms)	140 ± 23	137 ± 24	0.82	↓
	MRR (mV/ms)	-124 ± 15	-111 ± 19	0.12	↓
	Latency (s)	0.9 ± 0.04	1 ± 0.03	0.22	↑
	Duration (s)	2 ± 0.3	2.2 ± 0.4	0.18	↑
Quinpirole (1 μM) n = 4	Threshold (mV)	-40 ± 6	-46 ± 4	0.4	↑
	Amplitude (mV)	88 ± 7	88 ± 6	0.83	↓
	MDR (mV/ms)	144 ± 43	131 ± 33	0.42	↓
	MRR (mV/ms)	-154 ± 33	-144 ± 23	0.4	↓
	Latency (s)	0.5 ± 0.2	0.4 ± 0.1	0.15	↓
	Duration (s)	1.6 ± 0.3	1.7 ± 0.3	0.06	↑
A-68930 (300 nM) + quinpirole (1 μ) n = 6	Threshold (mV)	-42 ± 4	-42 ± 4	0.94	↓
	Amplitude (mV)	129 ± 7	125 ± 8	0.22	↓
	MDR (mV/ms)	146 ± 24	130 ± 23	0.28	↓
	MRR (mV/ms)	-157 ± 22	-149 ± 19	0.45	↓
	Latency (s)	1.2 ± 0.1	1.2 ± 0.1	0.57	↑
	Duration (s)	1.8 ± 0.2	1.8 ± 0.2	0.39	↑
Dihydrexidine (100 nM) n = 10	Threshold (mV)	-41 ± 2	-40 ± 1.6	0.52	↓
	Amplitude (mV)	116 ± 6	114 ± 9	0.16	↓
	MDR (mV/ms)	144 ± 17	272 ± 147	0.4	↑
	MRR (mV/ms)	-154 ± 13	-140 ± 14	* 0.005	↓
	Latency (s)	1.7 ± 0.1	1.7 ± 0.1	0.25	↑
	Duration (s)	0.5 ± 0.1	0.5 ± 0.1	* 0.005	↑