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. 2015 May 15;3:39–42. doi: 10.1016/j.ebcr.2015.02.003

Fig. 1.

Fig. 1

The initial EEG tracing demonstrates generalized rhythmic and semirhythmic delta frequency activity at 1 Hz with superimposed, frontally predominant bursts of rhythmic beta frequency activity. High pass filter 1 Hz; low pass filter 70 Hz; notch filter off representing extreme delta brush.