Fig. 4
From: Improving working memory by electrical stimulation and cross-frequency coupling
Topographic Maps of PSD Distribution in Delta Range: Verum Condition OE. Topographic 2D maps depicting PSD distribution across different electrodes in the delta range. These maps highlight statistically significant differences observed before and after the verum condition with eyes open (red dots). Statistical analysis was conducted using paired t-tests with FDR correction for multiple comparisons (p < 0.05) utilizing the Fieldtrip toolbox. OE: eyes open; CE: eyes closed; Hz: hertz; PSD: Power spectral density; FDR: false discovery rate