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. 2016 Nov 23;6:37647. doi: 10.1038/srep37647

Figure 4. Optimal combination of primary and secondary frequency band oscillation.

Figure 4

Preference distribution analysis for determining the optimal combination of the primary and secondary frequency bands that extract as much information as possible from each speech sample. Theta (4~10 Hz) as the primary frequency band oscillation and low gamma (25~35 Hz) as the secondary frequency band oscillation were chosen as the optimal combination for the temporal reference.