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Anosmia, also known as smell blindness, is the loss of the ability to detect one or more smells. [1] [2] Anosmia may be temporary or permanent. [3] It differs from hyposmia, which is a decreased sensitivity to some or all smells. [2] Anosmia can be categorized into acquired anosmia and congenital anosmia.
People can be born with no sense of smell, a condition called anosmia, or they can acquire it, as has been the case with many who had a Covid infection.
Under the direction of Professor Thomas Hummel, the University of Dresden Smell and Taste Center in Germany conducts fundamental and clinical research on the diagnosis, consequences, and treatments of anosmia, including congenital anosmia. [35] Smell and Taste Association of North America is a non-profit organization dedicated to advancing ...
Dr. James C. Denneny III, CEO of the American Academy of Otolaryngology, head and neck surgery (AAO-HNS), told me over email that anosmia is caused by the viral illness damaging the receptor ...
Hyperosmia is a rare condition typified by an abnormally heightened sense of smell. Like vision and hearing, the olfactory problems can be bilateral or unilateral meaning if a person has anosmia on the right side of the nose but not the left, it is a unilateral right anosmia.
The Lady and the Unicorn, a Flemish tapestry depicting the sense of smell, 1484–1500. Musée national du Moyen Âge, Paris.. Early scientific study of the sense of smell includes the extensive doctoral dissertation of Eleanor Gamble, published in 1898, which compared olfactory to other stimulus modalities, and implied that smell had a lower intensity discrimination.
Anosmia is the permanent loss of the sense of smell, and is different from olfactory fatigue. It is a term commonly used in wine tasting , where one loses the ability to smell and distinguish wine bouquet after sniffing at wine continuously for an extended period of time.
Total lack of sense of smell or markedly reduced sense of smell (hyposmia). This is the defining feature of Kallmann syndrome; it is not seen in other cases of HH. Approximately 50% of HH cases occur with anosmia and can be termed as Kallmann syndrome. [3] Cleft palate, cleft lip or other midline cranio-facial defects. [4]