Streams of Auditory Processing in the Human Brain. Lateral view of the anteroventral and posterodorsal auditory processing pathways (unbroken arrows), and anatomical connections between SMA and pre-SMA and inferior frontal, temporal and parietal areas (broken arrows). The main anatomical systems involved in sound processing are shown in color. Projecting from the primary auditory cortex into anterior temporal and inferior frontal areas, the anteroventral stream decodes meaning in sounds (‘what’). The posterodorsal pathway supports sensorimotor and spatial processes (‘how’ and ‘where’), and it projects posteriorly into inferior parietal, sensory, motor, and inferior frontal areas.
Roles of Supplementary Motor Areas in Auditory Processing and Auditory Imagery