Mood symptoms, cognitive function, and changes of brain hemodynamics in patients with COVID-19: A functional near-infrared spectroscopy study

Figure 8 Activation of oxygenated hemoglobin based on S integral value. A: Activation of oxygenated hemoglobin (HbO) based on S IV (the size of neural activity during the task) in the healthy group when P < 0.05 is in the range of -3 to 6; B: Activation of HbO based on S IV in the brain of the coronavirus disease 2019 (COVID-19) group when the P value of the COVID-19 group was < 0.05; C: The position corresponding to the significant difference of HbO S IV in brain activation during verbal fluency test tasks between the healthy group and the COVID-19 group.