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. Author manuscript; available in PMC: 2018 Mar 1.
Published in final edited form as: Genes Brain Behav. 2016 Nov 24;16(3):361–368. doi: 10.1111/gbb.12351

Figure 3.

Figure 3

Baseline cognitive performance in aged female rhesus macaques in the DR (a) and DMS (b) tasks, with variable delays. As expected cognitive performance decreased as delay intervals increased, with performance at a delay of 15 seconds being considered a true measure of memory in the DR task and performance a delay of 120 seconds a true measure of memory in the DMS task. Each bar represents the mean of 8 animals and the vertical lines represent SEMs. Values with different letters were significantly different (P < 0.01), except for the difference in DMS performance at 60-sec and 120-sec delays (P < 0.05; ANOVA followed by the Newman-Keuls test).