Fig. 6
Exploratory behavior in the training and test of object recognition. The memory test was performed 1 h after local injection of saline (vehicle) and Aβ1-42 in saline into the dentate granule cell layer of rats via an injection cannula in the same manner as Fig. 5. The time of exploratory behavior in the field was measured in the training and test (middle). control/saline, n = 6 rats; control/Aβ, n = 7 rats; NYT/Aβ, n = 7 rats. One hour after training, the memory was evaluated as the recognition index (lower). **, p < 0.01, vs. control/saline in test; ##, p < 0.01, vs. control/Aβ in test (Tukey’s test). control/saline, n = 6 rats; control/Aβ, n = 7 rats; NYT/Aβ, n = 7 rats