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. Author manuscript; available in PMC: 2014 Apr 1.
Published in final edited form as: Auton Neurosci. 2013 Mar 13;175(0):26–37. doi: 10.1016/j.autneu.2013.02.006

Figure 4. Cross-correlation analysis between respiration and heart frequencies.

Figure 4

Comparison of temporal characteristics characterizing cardiorespiratory couplings in a healthy individual (Ctrl) and an individual with Rett syndrome (Rett) shows in A) Root mean square of the amplitude of respiratory frequency components in controls and in Rett syndrome data. B) Time from the time-lag corresponding to the first maximum in the heart frequency component in response to respiration in control individuals and individuals with Rett syndrome. C) Amplitude of the first maximum in the heart frequency component during the breathholds in control individuals and individuals with Rett syndrome. (Weese-Mayer, 2006)