<unk>  (PBA), or emotional incontinence, is a type of emotional disturbance characterized by uncontrollable episodes of crying, laughing, anger or other emotional displays. PBA occurs secondary to a neurologic disorder or brain injury. Patients may find themselves crying uncontrollably at something that is only moderately sad, being unable to stop themselves for several minutes. Episodes may also be mood-incongruent: a patient may laugh uncontrollably when angry or frustrated, for example. Sometimes, the episodes may switch between emotional states, resulting in the patient crying uncontrollably before dissolving into fits of laughter. The<unk> , also referred to as emotional lability, should not be confused with labile mood or labile emotions that stem from emotional instability –<unk> ive dysregulation – commonly seen in mental illnesses and certain personality disorders.
Pseudobulbar affect
Pain asymbolia
Automatism 
Sundowning
Baricity
Visual release hallucinations
Extrapyramidal symptoms
Spasm