Magnetic Resonance Imaging in Amyotrophic Lateral Sclerosis
Figure 3
Schematic presentation of 4 reliable recovered networks, adapted from Kollewe and coworkers [69]. (a) Default-mode network: this network has been reviewed by Raichle and Snyder [65] who have described that activity in this network is high during rest and reduced during cognitive activity. It comprises a large frontal area, including ventral anterior cingulated cortex (vACC), medial prefrontal cortex (MPFC) and orbitofrontal cortex (OFC), the posterior cingulated cortex (PCC), the inferior parietal cortex (IPC), and a temporal region involving the parahippocampal gyrus (PHG). (b) Sensori-motor network: this network has been previously identified by a number of authors [62, 66–68]. This network comprises the primary motor cortex (PMC), premotor cortex (PMC), anterior section of cingulated cortex (ACC), the somatosensory region (SSC), and auditory cortex (Aud. C). (c) Fronto-temporo-parietal network: this network includes prefrontal (BA9, BA10, BA11), temporal (BA20, BA27), and parietal (BA7, BA39, BA40) regions. (d) Ventral network: this network comprises the middle temporal gyrus (Temp. C, BA21), parts of the frontal cortex (DLPFC, BA9, BA47), and parts of the cingulated gyrus (ACC, BA31, BA24). The posterior network is not shown; it comprises mainly visual areas in the occipital cortex including BA18 and BA19.
