Figure 3
The conditioned hyperactivity challenge test after CS reactivation and propranolol intervention.
Two days after reactivation sessions, rats were first tested for 20 min in locomotion chambers, their locomotion was recorded for another 60-min in a drug-free state after an injection of saline. (A) Locomotor activity collected during the 20-min period prior to saline injection. (B) Locomotor activity collected during the 60-min period after saline injection. * p < 0.05, ** p < 0.01 compared with Sal group; # p < 0.05, ## p < 0.01 compared with Mor-R-Pro group.
