Catalepsy

Catalepsy
Classification and external resources
ICD-10F20.2, F44.2
ICD-9295.2, 300.11
MeSHD002375
Rigidity of the body is characteristic of catalepsy.

Catalepsy is a neurological condition. The body is fixed, with rigid muscles and fixed posture. The body position does not respond to stimuli, and there is lowered sensitivity to pain.

Causes

Neurological

Catalepsy is a symptom of certain nervous disorders or conditions such as Parkinson's disease and epilepsy. It is also a characteristic symptom of cocaine withdrawal. It may be caused by schizophrenia treatment with anti-psychotics such as haloperidol. It may be caused by the anaesthetic ketamine.

External

In some cases, catalepsy may be started by an extreme emotional shock – one well known example of this was the reaction of 1968 Olympic long jump medalist Bob Beamon on finding he had broken the previous world record by over 0.5 meters (2 feet). Protein kinase A has been suggested as a mediator of cataleptic behavior.

References

  1. ↑ "Medical terms". Archived from the original on 2003-08-19. Retrieved 2014-08-14.
  2. ↑ Rasmussen K.; et al. (2007). "The orexin-1 antagonist SB-334867 blocks antipsychotic treatment emergent catalepsy: implications for the treatment of extrapyramidal symptoms". Schizophr Bull. 33 (6): 1291–7. doi:10.1093/schbul/sbm087. PMC 2779883. PMID 17660489.
  3. ↑ Hattori K.; et al. (2006). "Fyn is required for haloperidol-induced catalepsy in mice". J. Biol. Chem. 281 (11): 7129–35. doi:10.1074/jbc.M511608200. PMID 16407246.[permanent dead link]
  4. ↑ Miller, Ronald (2005). Miller's Anesthesia. New York: Elsevier/Churchill Livingstone. ISBN 0-443-06656-6.
  5. ↑ Great Olympic Moments - Sir Steve Redgrave, 2011
  6. ↑ Adams M.R.; et al. (1997). "Loss of haloperidol induced gene expression and catalepsy in protein kinase A-deficient mice". Proc. Natl. Acad. Sci. U.S.A. 94 (22): 12157–61. doi:10.1073/pnas.94.22.12157. PMC 23735. PMID 9342379.