The metastable brain associated with autistic-like traits of typically developing individuals
Fig 3
Dynamic changes in the delta-alpha PAC strength.
(A) A representative raw EEG signal at the FC2 electrode. (B) The corresponding first envelope (instantaneous amplitudes) around an alpha-band peak frequency. (C) The second envelope around a delta-band peak frequency. (D) The alpha-band signals. (E) The mean power spectrum of the raw EEG signals as in panel A. (F) The mean power spectrum of the first envelopes as in panel B. The alpha-band and delta-band peak frequencies were estimated from the peaks of mean power spectra in panels E and F, respectively (see the dotted lines in panels E and F and refer to S3 Fig). In panel D, (i) indicates the data corresponding to panel A, while (ii) indicates another signal of faster transition among more states obtained from an individual with a lower AQ score (the signal at electrode POz). The colors in panels A to D indicate distinct states.