gelasmus

n. spasmodic laughter in individuals with certain psychogenic disorders, schizophrenia, and some diseases of the brain (especially of the medulla oblongata). When occurring as an aspect of a psychomotor seizure, this type of spasmodic laughter is termed gelastic epilepsy.

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Psychology term of the day

March 17th 2025

paranoid delusion

loosely, any of a variety of false personal beliefs tenaciously sustained even in the face of incontrovertible evidence to the contrary. These include delusions of grandeur, delusional jealousy, or, most frequently, delusions of persecution.