thalamic stroke.<unk>  can be caused by a variety of things. It often occurs after brain injury or as a symptom of other diseases. Frontal lobe damage<unk>  is often the result of severe frontal lobe injury in which the pattern of inhibitory control is one of increasing passivity and gradually decreasing speech and motion. Thalamic stroke Many cases of<unk>  occur after a thalamic stroke. The thalamus helps regulate consciousness and alertness. Ablation of cingulate gyrus Another cause of both akinesia and mutism is ablation of the cingulate gyrus. Destruction of the cingulate gyrus has been used in the treatment of psychosis. Such lesions result in akinesia, mutism, apathy, and indifference to painful stimuli. The anterior cingulate cortex is thought to supply a "global energizing factor" that stimulates decision making. When the anterior cingulate cortex is damaged, it can result in<unk> . Other<unk>  is a symptom during the final stages of Creutzfeldt–Jakob disease (a rare degenerative brain disease) and can help diagnose patients with this disease. It can also occur in a stroke that affects both anterior cerebral artery territories. Another cause is neurotoxicity due to exposure to certain drugs such as tacrolimus and cyclosporine. Other causes of<unk>  are as follows: * Respiratory arrest and cerebral hypoxia * Acute cases of encephalitis lethargica * Meningitis * Hydrocephalus * Trauma * Tumors * Aneurysms * Olfactory groove meningioma * Cyst in third ventricle * Toxical lesions and infections of central nervous system * Delayed post-hypoxic leukoencephalopathy (DPHL) * Creutzfeldt–Jakob disease (mesencephalic form)
Akinetic mutism
Selective mutism
Tourettism
Nonverbal autism
Taurodontism
Autistic catatonia
Autism
Autism spectrum