The salience network consists of several structures, including the anterior (bilateral) insula, dorsal anterior cingulate cortex, and three subcortical structures which are the ventral striatum, substantia nigra/ventral tegmental region.[20][21] It plays the key role of monitoring the salience of external inputs and internal brain events.[3][4][5][6][7][8][9] Specifically it aids in directing attention by identifying important biological and cognitive events.[21]