Table 1. Mean (±SEM) ICSS thresholds (in μA) and response latencies (in sec) in experimental groups during baseline sessions in Experiments 1b, 2, and 3.

	Thresholds	Latencies
Experiment 1b
SAL + SAL	127.8 ± 11.5	2.5 ± 0.1
METH + SAL	103.3 ± 16.8	2.2 ± 0.1
METH + METH	98.2 ± 14.9	2.3 ± 0.2
Experiment 2
PBS + SAL	131.2 ± 23.0	2.9 ± 0.3
PBS + METH	110.9 ± 17.4	2.6 ± 0.3
30 mAb + METH	131.8 ± 26.0	2.6 ± 0.2
100 mAb + METH	113.1 ± 19.1	2.7 ± 0.1
200 mAb + METH	114.4 ± 19.1	2.9 ± 0.2
Experiment 3
PBS + SAL	141.7 ± 29.7	2.9 ± 0.1
PBS + METH	141.5 ± 19.6	2.9 ± 0.2
200 mAb + SAL	131.5 ± 31.2	2.7 ± 0.1
200 mAb + METH	124.9 ± 14.0	2.6 ± 0.2