Figure 2

Transfer function of a 6-s time window of PatID 3. Analysis of one 6-s time window of PatID 3 showing (a) signals 1 (Codman) and 2 (dash-dot line, Codman), (b) transfer function of magnitude, and (c) transfer function of phase with dash-dot line indicating estimate based on a delay of 0 sec. In this case, 15.6% of 6-s time windows showed a difference in MWA > 1 mmHg (largest MWA in Signal 1 in 11.3% and largest MWA in Signal 2 in 4.3%). In 0.5% of 6-s time windows, the difference in MWRT was > 0.1 sec (largest MWRT in Signal 1 in 0.2% and largest MWRT in Signal 2 in 0.3%).