Symptom >> Psychiatry >> Psychiatry

Paroxysmal laughter

Introduction
Cause
Examine
Diagnosis

Introduction

Introduction No matter when and when, there is no reason to laugh, sometimes faint smiles, sometimes laughing and laughing, there is no scruples. This is a special mental illness.

Cause

Cause

It is due to the coordination disorder of the nervous system excitatory and inhibition processes, and the unstable excitatory process causes the cerebral cortex to form a stubborn stagnant and inert excitatory lesion.

Examine

an examination

Related inspection

Neurological examination, brain CT examination, EEG examination

Laughing obsessive-compulsive disorder patients often laugh for no reason, sometimes faint smiles do not show teeth, sometimes laughing and laughing, can only laugh more than 10 times per hour, each time lasting 5-6 seconds. In the early stages of the disease, people often sneak a laugh, and gradually become more and more difficult to control. No matter when and when, or laughing or smiling, there is no scruples.

Accompanied by ADHD, EEG changes (indefinite duration) and varying degrees of disturbance of consciousness.

Diagnosis

Differential diagnosis

Paroxysmal laughter: Some people are subject to some kind of stimulation, such as motor sounds, other people's conversations, or seeing some images on the TV screen. Although there is no ridiculous thing, it causes paroxysmal, unconscious, and involuntary. Laughing, often every half hour, every time lasts for ten seconds, then stops naturally. Some people showed sudden surprise before the attack: the whole body activity was still, the eyes were gazing, the consciousness was blurred, the face was flushed, and then they giggled, sometimes even laughing in incontinence. In fact, this is a special type of seizure called paroxysmal epilepsy.

Laughter: more common in after drinking or rickets.

Weird smile: more common in patients with facial paralysis and paralysis. As the innervation is weakened or lost, the muscles on the side of the affected side are loose, the nasolabial folds become shallow, and the corners of the mouth are pulled to the healthy side when laughing, the mouth is skewed, and the expression is weird.

Strong laugh: Some people have headaches and vomiting after being injured in the head (common to the ankle), accompanied by sudden laughter, high laughter, jaw shaking, but the patient is conscious, the mind is not chaotic, the response is as usual, this A sick smile, called a strong laugh.