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The number of reach attempts made by the animals at weeks 1 (A) and 13 (B). More attempts were made at week 13 than at week 1 (Saline, control; D, drug only; T, training only; D+T, drug and training; D+T+EE, drug and training in enriched environmental housing; *p<0.05 by Fisher's 2×2 exact test).
