Figure 2
From: Signal quality of simultaneously recorded endovascular, subdural and epidural signals are comparable
Electrode bandwidths. (a) Frequency spectra from representative 500 µm SD, EV, and ED electrodes, displaying characteristic (1/f) frequency responses. Band powers were calculated in individual 2 s windows using the Thompson multitaper method with a centre frequency of 1 Hz (2 Hz resolution). Dashed vertical lines and numbers indicate calculated maximum bandwidths. Grey bars indicate respective noise floors. (b) Maximum bandwidths for ED, EV, and SD arrays for electrode sizes 500, 750, and 1000 µm. Circles show individual values, centre lines show mean values, error bars show standard error of the mean. Two-way ANOVA showed no significant effect of either the array location (p = 0.75) or electrode size (p = 0.15) on the bandwidth.
