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Evaluation of age-dependent decline in short-term memory in the F344 rats. The memory impairment is evidenced by the escape latencies in the training trials (A) and the percentage of time spent in the quadrant opposite to the target quadrant (B) and the crossings in the platform location (C) in the 24-h retention probe test. All the values represent the mean ± SEM. ∗p < 0.05.
