Table 1.

Locomotor activity during baseline and test self-administration sessions

ScheduleDose of WINBaselineMLA 1MLA 3MLA 5.6DHBE 3DHBE 5.6
FR112.5258 ± 7268 ± 14244 ± 17266 ± 13252 ± 14
FR125224 ± 8248 ± 7236 ± 12268 ± 12
FR512.5268 ± 10294 ± 8260 ± 12272 ± 9
  • Data are expressed as mean ± SEM of locomotor counts. Doses for WIN55,212-2 (WIN) self-administration are expressed as micrograms per kilogram per injection, whereas doses for drug pretreatment are expressed as milligrams per kilogram, intraperitoneally.