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Tolcapone alleviated the subchronic PCP-induced recognition memory deficit in Long Evan rats. (A) Exploration of novel (first grey column) and familiar (second black column) objects during the retention trial (B) Recognition index during retention. (* = p < 0.05, ** = p < 0.01). All data presented as mean + SEM (* = p<0.05, ** = p<0.01); n=17–19 per group.
