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Treatment with systemic MK-801 was without effect on pr-STM. A, Three hours after reactivation MK-801 treated rats (n = 7) showed no significant difference in lever pressing compared with vehicle controls (n = 9). B, MK-801 had no significant effect on short-term nosepoking behavior 3 h after reactivation. Data are represented as mean number of lever presses + SEM.
