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(Color online) PSD extracted from reading task under different mask conditions. Mean power spectra density displayed between 1 and 10 kHz based on mask type. Shaded areas represent the standard error of mean. *p ≤ 0.05 no mask vs mask type at each frequency bin. Red stars denote significant differences between no mask and N95, blue stars denote significant differences between no mask and surgical masks, while orange stars denote significant differences between no mask and N95.
