This might be partially modelled by an osmic person by a comparison of what things taste like when they have some form of nasal blockage (cold, hayfever, polyps etc) to when they don't.

See an episode of kitchen chemistry, in which professional taste testers had their nose blocked off (presumably to stop airflow through the nasal passage to the smell receptors). Blindfolded, and fed pureed food, they couldn't tell what the food was. They picked things at random based on the messages they got from their tongue.

Which I guess makes tongues Osmic Tentacles.