Fig. 8: Relationship between LZC and PLE in empirical and simulated data.
From: Altered brain dynamics index levels of arousal in complete locked-in syndrome
LZC and PLE are computed using synthetic data (a). For that purpose, 1000 brown, white, and pink noise signals were generated by varying the noise power decay factor with frequency. LZC and PLE calculated on these signals show a non-linear relationship between both measurements. In the empirical data, error bars were used to represent the mean of PLE and LZC as well as the standard deviation of PLE (b). Patients with CLIS patients from the different datasets show a greater variance in PLE values. Control participants are grouped around lower PLE values (PLE around 1, that is, pink noise). On the contrary, participants with altered alertness generally show higher PLE values and lower LZC values.
