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. 2016 May 13;374(2067):20150178. doi: 10.1098/rsta.2015.0178

Figure 4.

Figure 4.

Averaged NSTPDC plots for central–autonomic coupling analyses for (a) healthy subjects and (b) schizophrenic patients. Arrows indicate the causal coupling direction from one time series to another, e.g. Inline graphic, indicating the causal link from PEEG to SYS. Coupling strength ranges from blue (no coupling) to red (maximum coupling), where SYS represents successive maximum systolic blood pressure amplitude values over time, and PEEG represents the mean power in BBI-related EEG intervals.