Figure 2.

Examples of recorded and analyzed data from a participant. (a–d) illustrate short extracts of data for an individual participant. (e and f) illustrate data for the whole period of recording for the same participant. All three conditions are shown in subplots (a–b), shifted along vertical axis for clarity, and color‐coded: Black—spontaneous breathing (SB), Red—resonance frequency (RF), Blue—at (RF + 1). (a) An extract of muscle sympathetic nerve activity (MSNA) data (solid lines) and detected bursts (stars). (b) Respiration signal for three conditions. (c) Detected phase of respiration signal from b (solid lines) and MSNA bursts from a (stars), aligned in time. (d) An extract of respiration data (left y‐axis) and detected phase of the signal (right y‐axis). Yellow rectangles: the phase of the signal when maximum likelihood of spiking occurs. (e) Normalized burst time histogram as a function of the instantaneous phase of respiration. (f) Normalized histogram of inter‐burst intervals. (d–f) Data for baseline SB (left plot), RF + 1 (middle), and RF (right)