Fig. 1. Schematic diagram of the underlying mechanism of rTMS. (A) Three-dimensional images of the brain that highlight the frontoparietal network of the brain. The top image shows the axial view of the brain, alongside with the area of stimulation for the rTMS treatment summarized in the current review colored in light green. The bottom image shows the sagittal view of the brain. Each circle is a node that represents the region of the brain that is part of the frontoparietal network, and each grey line is an edge that represents the inter-regional connectivity between the nodes. (B) The two potential neural pathways that underlie rTMS treatment to the DLPFC. A T1-weighted image of the brain is shown in sagittal, coronal, and axial view to show the DLPFC as highlighted in yellow. R, right; L, left; DLPFC, dorsolateral prefrontal cortex; MFG, middle frontal gyrus; IPL, inferior parietal lobe; IPS, inferior parietal sulcus; CC, corpus callosum; rTMS, repetitive transcranial magnetic stimulation; FPN, frontoparietal network; DMN, default mode network.
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