Figure 4.

Cerebellar theta stimulation enhances episodic memory. Words were studied individually during the EEG phase, and a recognition memory test was administered after a delay. Subjects attempted to discriminate studied words from novel foils and simultaneously rated confidence. Recognition discrimination accuracy for confident responses (d′) varied by stimulation condition, as shown via box-and-whisker plots with whiskers marking the first and third quartiles (for supplementary details, see Extended Data Fig. 4-1). Dots indicate values for individual subjects. *p < 0.05; **p < 0.01.