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. Author manuscript; available in PMC: 2023 Jan 1.
Published in final edited form as: Neurobiol Aging. 2021 Sep 16;109:113–124. doi: 10.1016/j.neurobiolaging.2021.09.012

Fig. 1. Performance of individual subjects on the Delayed Recognition Span Task.

Fig. 1.

(A) left: DRST-Spatial span vs. age in young (y, green), middle-aged (m, blue), and aged (a, red) subjects; right: greater improvement in DRST-Spatial span in the curcumin-treated middle-aged cohort. (B) left: DRST-Object span in the same cohort of monkeys as in (A); right: greater improvement in DRST-object span in the curcumin-treated middle-aged cohort. Dotted lines denote performance threshold below which subjects are classified as impaired on each task. Solid lines denote statistically significant regressions (p<0.05). Data were obtained from a total of 8 young, 19 middle-aged control, 12 aged, and 7 middle-aged curcumin-treated monkeys.