Definitions for cataplexy
cat·a·plexy

WiktionaryRate this definition:0.0 / 0 votes

1. cataplexynoun

   An abrupt loss of muscle tone, sometimes associated with narcolepsy.

2. Etymology: From German Kataplexie, from.

WikipediaRate this definition:0.0 / 0 votes

1. Cataplexy

   Cataplexy is a sudden and transient episode of muscle weakness accompanied by full conscious awareness, typically triggered by emotions such as laughing, crying, or terror. Cataplexy affects approximately 70% of people who have narcolepsy, and is caused by an autoimmune destruction of hypothalamic neurons that produce the neuropeptide hypocretin (also called orexin), which regulates arousal and has a role in stabilization of the transition between wake and sleep states. Cataplexy without narcolepsy is rare and the cause is unknown. The term cataplexy originates from the Greek κατά (kata, meaning "down"), and πλῆξις (plēxis, meaning "strike") and it was first used around 1880 in German physiology literature to describe the phenomenon of tonic immobility also known as "playing possum" (in reference to the opossum's behavior of feigning death when threatened). In the same year the French neuropsychiatrist Jean-Baptiste Gélineau coined the term 'narcolepsy' and published some clinical reports that contain details about two patients who have similar condition as the narcoleptic cases nowadays. Nevertheless, the onset reported by him was in adulthood as compared to the nowadays cases reported in childhood and adolescence. Even if he preferred the term 'astasia' instead of 'cataplexy' the case described by him remained iconic for the full narcoleptic syndrome.

WikidataRate this definition:0.0 / 0 votes

1. Cataplexy

   Cataplexy is a sudden and transient episode of loss of muscle tone, often triggered by emotions such as laughing, crying, terror, etc. It is a rare disease, but affects roughly 70% of people who have narcolepsy. However, in rare cases, cataplexy occurs without the co-occurrence of narcolepsy. The exact cause of cataplexy is unknown, but the condition is strongly linked to experiencing intense emotions and reduced levels of the neurochemical hypocretin. Cataplexy can also be present as a side effect of SSRI Discontinuation Syndrome. The term cataplexy originates from the Greek κατά, and πληξις.

Chambers 20th Century DictionaryRate this definition:0.0 / 0 votes

1. Cataplexy

   kat′a-plex-i, n. the kind of mesmeric sleep of animals under a sudden shock of terror—the state of 'shamming death.'—adj. Cataplec′tic. [Gr. kataplēssein, to strike down.]

U.S. National Library of MedicineRate this definition:0.0 / 0 votes

1. Cataplexy

   A condition characterized by transient weakness or paralysis of somatic musculature triggered by an emotional stimulus or physical exertion. Cataplexy is frequently associated with NARCOLEPSY. During a cataplectic attack, there is a marked reduction in muscle tone similar to the normal physiologic hypotonia that accompanies rapid eye movement sleep (SLEEP, REM). (From Adams et al., Principles of Neurology, 6th ed, p396)

How to pronounce cataplexy?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say cataplexy in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of cataplexy in Chaldean Numerology is: 4

2. Pythagorean Numerology

   The numerical value of cataplexy in Pythagorean Numerology is: 8

Popularity rank by frequency of use

References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Cataplexy
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Cataplexy
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=cataplexy
4. ^ Chambers 20th Century Dictionary
   https://www.gutenberg.org/files/37683/37683-h/37683-h.htm#:~:text=cataplexy