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. Author manuscript; available in PMC: 2022 Apr 12.
Published in final edited form as: Curr Biol. 2021 Feb 4;31(7):1428–1437.e5. doi: 10.1016/j.cub.2021.01.027

Figure 2. Effects of HNT stimulation on video memory accuracy.

Figure 2.

(A) Accuracy by question number and stimulation session (HNT and control stimulation). Accuracy on Q2 was significantly better for HNT (red) than control (blue) stimulation. For control stimulation, accuracy was significantly worse on Q2 than on Q1, but there was no difference between questions for HNT stimulation sessions. Error bars represent standard error of the mean. Asterisks indicate tests that were significant after correction for multiple comparisons (p < 0.05). (B) Difference scores for Q2 accuracy (HNT minus control) by participant, showing a relatively consistent improvement in Q2 accuracy for HNT versus control stimulation. 15 out of 20 subjects had higher Q2 accuracy for HNT versus control stimulation, and only 3 out of 20 subjects showed moderately lower Q2 accuracy for HNT versus control stimulation.