Water maze performance. On days 2 and 3, all LPS-infused animals (closed triangles, squares and circles) were significantly impaired (*p<0.0033, Bonferroni/Dunn post hoc test) compared to their control groups. On days 2 and 3, LPS+WIN 1 rats were significantly impaired († p<0.0033, Bonferroni/Dunn post hoc test) compared to the LPS+vehicle rats. WIN 55212-2 did not impair performance (open squares and circles) of aCSF-infused rats and did not attenuate the impairment due to the LPS infusion (closed squares and circles)