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Pseudobulbar affect (PBA), or emotional incontinence, is a type of neurological disorder characterized by uncontrollable episodes of crying or laughing. PBA occurs secondary to a neurologic disorder or brain injury .
Nervous laughter is considered analogous to a courtesy laugh, which may be rendered by more of a conscious effort in an attempt to move a situation along more quickly, especially when the comedian is pausing for laughter. Nervous laughter is a physical reaction to stress, tension, confusion, or anxiety.
Paradoxical laughter has been consistently identified as a recurring emotional-cognitive symptom in schizophrenia diagnosis. Closely linked to paradoxical laughter is the symptom; inappropriate affect, defined by the APA Dictionary of Psychology as "emotional responses that are not in keeping with the situation or are incompatible with expressed thoughts or wishes". [3]
Here‘s the Real Disorder Behind Joker's Uncontrollable Laugh. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us. Mail. Sign in ...
Laughter has various proven beneficial biochemical effects. It has been shown to lead to reductions in stress hormones such as cortisol and epinephrine. When laughing, the brain releases endorphins that can relieve some physical pain. [20]
Emotional lability is seen or reported in various conditions including borderline personality disorder, [3] histrionic personality disorder, [4] post-traumatic stress disorder, [5] hypomanic or manic episodes of bipolar disorder, [6] and neurological disorders or brain injury (where it is termed pseudobulbar affect), such as after a stroke. [7]