Autoimmune encephalitis signs can include catatonia, psychosis, abnormal movements, and autonomic dysregulation. An improper dose causes him to demonstrate symptoms of catatonia or disorganized schizophrenia. Particularly, this suggests cases where schizophrenia manifests a state of catatonia. Electroconvulsive therapy is often used as a treatment for catatonia. People with stuporous catatonia may also show stereotyped, repetitive movements (stereotypy). The disease then progresses to catatonia, seizures and loss of consciousness. Risk factors include dehydration, agitation, and catatonia. Catatonia with inability to speak is responsive to lorazepam. Sufferers may also display symptoms of catatonia. She was credited as "Cerys from Catatonia". It was first described in 1874 by Karl Ludwig Kahlbaum as (Catatonia or Tension Insanity). Sante de Sanctis characterized the condition by the presence of catatonia. This type of catatonia presents with waxy flexibility. It is a symptom of catatonia and can last for many hours. Haber recognizes Orr, but cannot come out of his catatonia.