It runs towards the center of the brain in a medial-posterior fashion. Heschl gyrus cannot be visualized from a lateral view of the cerebral cortex since it is located deep to the superficial temporal lobe structure and is within the lateral sulcus. This cortex, along with associated auditory areas, is clustered surrounding the posterior aspect of the Sylvian fissure or lateral sulcus of the cerebral cortex, which separates the temporal lobe inferiorly from the parietal and frontal lobe superiorly. The primary auditory area is housed within Heschl gyrus, a region that is positioned posteriorly in the superior temporal lobe within the supratemporal plane. The primary auditory areas are regions of the cerebral cortex located bilaterally in the temporal lobes. ![]() Structure of the Primary Auditory Cortex: The primary auditory area acts as the principal location that receives sounds from peripheral auditory structures and is integral to begin the process of complex sound interpretation as well as the conscious perception of noise. From there, through bottom-up and top-down signaling pathways, the information can be relayed to other areas of the central nervous system, cerebral cortex, and lower brainstem regions to make meaning of the information as well as integrate auditory and other sensory stimuli. For a sound to be perceived by the individual, it needs to travel to and be processed by higher-order regions in the cerebral cortex, specifically the primary auditory area. ![]() The complexity of auditory processing is apparent by the system's ability to localize, analyze, and interpret a sound that then extrapolates into useful information that the individual can respond to with simultaneous integration with other sensory stimuli. The auditory system functions to collect sound waves from the environment, transform mechanical vibrations from those sound waves into electrical nerve signals, which can be relayed to various areas of the central nervous system, and process sound into meaningful content.
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