Fig. 2 | Scientific Reports

Fig. 2

From: Shared oscillatory mechanisms of alpha-band activity in prefrontal regions in eyes open and closed state using a portable EEG acquisition device

Fig. 2

Relationship of periodic and aperiodic activities in alpha band between eyes-open and eyes-closed states. (A) Raw power spectrum (black circles) and its aperiodic activity (orange line) in eyes-open state in an example subject. (B) Periodic activity in eyes-open state was obtained by subtracting the aperiodic component in A from the raw power spectrum. (C) Raw power spectrum (black circles) and its aperiodic activity (orange line) in eyes-closed state in an example subject. (D) Periodic activity in eyes-closed state was obtained by subtracting the aperiodic component in C from the raw power spectrum. (E) Scatter plot depict the relationship between alpha-band power in aperiodic activity in eyes-open and eyes-closed states. (F) Scatter plot depict the relationship between alpha-band power in periodic activity in eyes-open and eyes-closed states.

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