This research article investigates the neurological distinctions between sommeliers and novice wine consumers during wine tasting, specifically examining how expertise affects the brain's chemosensory and semantic processing. Employing fMRI and diffusion-weighted imaging, the study reveals that sommeliers exhibit unique structural connectivity in white matter tracts, particularly the superior longitudinal fasciculus, which correlates with their ability to discern wine complexity. Furthermore, the research identifies functional brain differences, showing that sommeliers activate language and memory-related regions more readily, especially when evaluating complex wines, while novices show greater activity in emotional and reward-related areas. The findings suggest that extensive wine training refines the integration between sensory perception and semantic knowledge in experts, enhancing their ability to identify and describe subtle flavor nuances.