Near-Infrared Spectroscopy Reveals Abnormal Hemodynamics in the Left Dorsolateral Prefrontal Cortex of Menopausal Depression Patients

Figure 3

(a) Average waveforms of oxy-Hb (red line), deoxy-Hb (blue line), and total-Hb (green line) concentrations during the verbal fluency task in the MD group in 6 channels with near-infrared spectroscopy (NIRS) with respect to the time course, Hb: hemoglobin. (b) Average waveforms of oxy-Hb (red line), deoxy-Hb (blue line), and total-Hb (green line) concentrations during the verbal fluency task in the MDD group in 6 channels with NIRS with respect to the time course. Hb: hemoglobin, NIRS: near-infrared spectroscopy. (c) Average waveforms of oxy-Hb (red line), deoxy-Hb (blue line), and total-Hb (green line) concentrations during the verbal fluency task in the HC group in 6 channels with NIRS with the respect to the time course. Hb: hemoglobin, NIRS: near-infrared spectroscopy. (d) Histogram presenting the average alterations in Oxy-Hb levels between the task and pretask periods in six channels. Oxy-Hb: oxygenated hemoglobin.

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