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1. Catatonia is a state of stupor and of neurogenic motor immobility associated with psychiatric states such as schizophrenia, depression, PTSD, and drug abuse.

2. Patients with catatonia are unresponsive, although they preserve oculocephalic responses (doll's eyes).

3. Some patients display a waxy flexibility of passive limb movement and hold uncomfortable limb postures for long periods (catalepsy).

4. Peculiar motor mannerisms or repetitive motions, seen in a number of these patients, can give the impression of seizures.

5. There are no signs of structural brain disease.


1. Wilkinson, I. (2017). Oxford handbook of clinical medicine. Oxford: Oxford University Press.
2. Hannaman, R. A., Bullock, L., Hatchell, C. A., & Yoffe, M. (2016). Internal medicine review core curriculum, 2017-2018. CO Springs, CO: MedStudy.
3. Image: no reference available.

Ⓒ A. Manickam 2018

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