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. Author manuscript; available in PMC: 2015 Jan 15.
Published in final edited form as: Neuroimage. 2013 Apr 2;85(0 1):10.1016/j.neuroimage.2013.03.037. doi: 10.1016/j.neuroimage.2013.03.037

Fig. 3.

Fig. 3

(A) Strain gauge signal used to monitor respiratory effort, and (B) temporal traces of changes in the concentrations of oxy-hemoglobin (ΔO) and deoxy-hemoglobin (ΔD) during 60 s baseline (normal breathing), and 60 s of paced breathing at 0.1 Hz.