Fig. 3.

High dietary VitD3 improves performance on a cognitive task. (A) MWM protocol. (B) Latencies and path lengths during training days 1–3. All groups showed a similar performance and improvement in reaching the platform. On day 5, all groups learned the new platform location during spatial reversal training (results are the average of the second and third trials. (C) Latency and path length to the goal during the probe trial (day 4) did not differ significantly between groups [latency: F(2,52) = 2.02, P = 0.14; path length: F(2,52) = 1.57, P = 0.22]. (D) On day 8 (reversal probe trial), the high-VitD3 group significantly outperformed the other groups on latency [F(2,52) = 3.8, P = 0.03] and path length [F(2,52) = 4.0, P = 0.02; n = 16–20 per group]. (E) Representative reversal probe path tracings.