Emotional incontinence; Pathological laughing and crying
Emotional lability is defined as rapid emotional change, most often associated with changes in affect related to injury or neurological conditions. Lability is observed conditions such as CVA, traumatic brain injury, neurocognitive disorders, schizophrenia, bipolar disorder, or borderline personality disorder. When characterized by uncontrolled laughing and/or crying that is disproportionate to the situation, it is called as pseudobulbar affect. Pseudobulbar affect is a disinhibition syndrome associated with pathways involving of serotonin and glutamate, but the pathways are not fully understood. The difference between pathological crying and depression is not well defined. In general, depression is characterized by much longer duration. Pseudobulbar affect does not present with sleep disturbance or loss of appetite. Prevalence estimates vary from 9.4% to 37.5% indicating as many as 7.1 million Americans may...
References and Reading
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