Fig. 4 | Scientific Reports

Fig. 4

From: Unveiling the upper-limb functional recovery mechanisms in stroke patients using brain-machine interfaces: a near-infrared functional imaging-based study

Fig. 4

Visual diagram of the change in HbO concentration in the test of the two groups of patients. (A) Patients with left hemisphere involvement in the treatment group. Before treatment, significant inhibition of activation in the left PMC and SMA was observed, while activation in various areas of the right hemisphere was evident. After treatment, activation in the left PMC and SMA was significantly enhanced. (B) Patients with left hemisphere involvement in the control group. Before treatment, significant inhibition of activation in the left PMC and SMA was observed. After treatment, there was also a certain degree of activation in the left PMC and SMA. (a,b) Oxygenated hemoglobin concentration in different brain regions in the two groups. (C) The color of the line represents the strength of the connection. (c) Brain network parameter values of two groups.

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