Table 1.

The effects of cannabinoid receptor agonists and antagonist microinjected into the BLA on locomotion and anxiety in the open-field test

Vehicle (n = 6)AM404 (n = 6)WIN55,212-2 (n = 6)AM251 (n = 6)
Time in center (s)7.83 ± 1.256.33 ± 1.314.66 ± 1.084.5 ± 1.28
Time in periphery (s)292.16 ± 1.25293.66 ± 1.31295.33 ± 1.08295.5 ± 1.28
Number of rearing events20.33 ± 1.7421.66 ± 2.0322 ± 1.6919.16 ± 2.10
Distance covered (s)1758.33 ± 114.321916.66 ± 158.461675 ± 107.041729.16 ± 231.16
  • Rats microinjected into the BLA with the CB1 receptor antagonist (AM251, n = 6), one of the agonists (WIN55,212-2 or AM404, n = 6 each), or vehicle (n = 6) showed no differences in any of the parameters measured in the open-field test.