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. Author manuscript; available in PMC: 2013 Apr 2.
Published in final edited form as: Neuroimage. 2012 Jan 28;60(2):879–883. doi: 10.1016/j.neuroimage.2012.01.104

Figure 5.

Figure 5

Normal angular distribution for (a) HbR and (b) HbO for the 20 subjects. The 2-D angular distribution (II-a and II-b) is given by the normal distribution of elevation (red curve in I-a and I-b) and the normal distribution of the azimuth (red curve III-a and III-b). The lines in Fig. II-a and II-b are the iso-probability lines calculated; the blue circles represent the subject measurement.