sentence: [ 489 ] The dual stream model , composed of parallel and interconnected streams connecting both cortical and subcortical areas , was first proposed by Hickock et al. [ 10 ] The main cortical hubs of the dorsal stream include Wernicke 's area [ posterior superior temporal gyrus ( pSTG ) and adjacent supramarginal gyrus ( SMG ) ] and the Broca 's area ( Pars triangularis and opercularis of the inferior frontal gyrus and middle-inferior part of precentral gyrus ) .