ageusia

The complete lack of taste is referred to as ageusia.

Cohen has ageusia and so relied on "mouth feel".

I feel like a gourmand who has been striken with ageusia.

Tissue damage to the nerves that support the tongue can cause ageusia, especially damage to the lingual nerve and the glossopharyngeal nerve.

Major complications of the condition are chronic loss of taste (ageusia), chronic facial spasm, facial pain and corneal infections.

True ageusia is relatively rare compared to hypogeusia - a partial loss of taste - and dysgeusia - a distortion or alteration of taste.

Dysgeusia is also often associated with ageusia, which is the complete lack of taste, and hypogeusia, which is the decrease in taste sensitivity.

To discover the extent of the ageusia, a scientist attempts to discern the minimum level of a chemical that a patient can detect by that the patient can differentiate.

Local damage and inflammation that interferes with the taste buds or local nervous system such as that stemming from radiation therapy, glossitis, tobacco use, and denture use also cause ageusia.

During this stage, occurring approximately 3-7 days post-infection, the typical symptoms are parosmia, rapidly progressing to anosmia (with resultant ageusia) as the nerve cells of the olfactory bulbs are consumed and replaced with necrotic lesions.

The primary cause of ageusia involves damage to the lingual nerve, which receives the stimuli from taste buds for the front two-thirds of the tongue, or the glossopharyngeal nerve, which acts similarly for the back third.

Ageusia can also be caused by medicinal side-effects from antirheumatic drugs such as penicillamine, antiproliferative drugs such as cisplatin, ACE inhibitors, and other drugs including azelastine, clarithromycin and zopiclone.