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. Author manuscript; available in PMC: 2012 Oct 24.
Published in final edited form as: Psychol Med. 2008 Sep 24;39(8):1265–1275. doi: 10.1017/S0033291708004364

Fig. 1.

Fig. 1

Tissue hemoglobin saturation under baseline and task conditions for left and right hemispheres in patients with bipolar disorder (–◇–) and normal controls (–◆–). LF, Letter fluency task; CF, category fluency task; LCT, letter cancellation test; RCPM-A, Set A of Raven’s Colored Progressive Matrices; RCPM-B, Set B of Raven’s Colored Progressive Matrices. Values are means, with standard deviations represented by vertical bars. Note that relatively large between-subject differences of tissue oxygenation index (TOI) are found in the baseline condition, which partly explained apparently large between-subjects differences in TOI increases.