Fig. 2From: Paroxysmal slow wave events are associated with cognitive impairment in patients with obstructive sleep apneaA PSWE detected in a OSA+MCI patient. EEG tracks of C3-M2 and C4-M1 electrodes are shown in the figure. The segment within the dotted rectangle was shown magnified, and those with median power frequency below 6 Hz were plotted on the graph in redBack to article page