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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]
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.
The main sign of a gelastic seizure is a sudden outburst of laughter with no apparent cause. [1] The laughter may sound unpleasant and sardonic rather than joyful. The outburst usually lasts for less than a minute. During or shortly after a seizure, an individual might display some twitching, strange eye movements, lip smacking, fidgeting or ...
Laughter is a pleasant physical reaction and emotion consisting usually of rhythmical, usually audible contractions of the diaphragm and other parts of the ...
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.
The word hysteria originates from the Greek word for uterus, hystera. The oldest record of hysteria dates back to 1900 BCE when Egyptians recorded behavioral abnormalities in adult women on the Kahun Papyrus. [7] The Egyptians attributed the behavioral disturbances to a wandering uterus – thus the condition later being dubbed hysteria.
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Tanganyika laughter epidemic (1962) – began on January 30, 1962, at a mission-run boarding school for girls in Kashasha, Tanzania. The laughter started with three girls and spread haphazardly throughout the school, affecting 95 of the 159 pupils, aged 12–18. [30] [31] Symptoms lasted from a few hours to 16 days in those affected. The ...