Fig. 5

The spectrum power profile resulting from FFT analysis on the EEG of recording No. 2 (a), No. 3 (b), and No. 1 (c) at recording position j in Fig. 1b. The FFT conditions were as follows: interval, 1.024 ms; the number of FFT point, 32768; window function, hamming; overlap, 1/2; spectrum, power and frequency resolution, 0.031 Hz