Giggle

Introduction A certain kind of stimulation, although there is no ridiculous thing, but it causes unconscious, involuntary laughter, and sometimes even smiles incontinence.

Cause

Found in patients with schizophrenia and some brain lesions.

an examination

Because of the abnormal function of the brain, when you laugh, you can sneer alone or laugh. For youthful schizophrenia, smirking is an important feature. But this kind of emotional instability, sometimes suddenly converging smiles, serious expressions; sometimes it is laughable and embarrassing.

Adolescent schizophrenia: In the acute phase of the disease, the patient's emotions can be dramatically changed without cause, which is a strong reaction caused by hallucinations and delusions. Excitement, excitement, nervousness, fear, anxiety, depression. Suddenly crying, suddenly laughing, suddenly furious and so on.

Schizophrenia: apathy, dullness, emotional dissonance (inappropriate), and emotional inversion or ridicule.

Congenital brain tumors grow slowly, so the tumor compresses the hypothalamus and causes the pathological changes and epileptic symptoms of the patients.

Differential diagnosis

Smirking: It is a special sneer. More common in patients with brain hypoplasia and senile dementia. This kind of laugh is not self-made, without any stimulation, can appear under any circumstances, no emotional color, so the patient is often happy, but due to the influence of intelligent obstacles, facial expressions give people a feeling of stupidity, no infection force.

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.

Smirk: more common in patients with occult depression. Originally, such patients are depressed in their hearts, but often smirk at people, and experienced doctors often find it.

Strong laugh: Strong laughter is a kind of laugh that can't be restrained. It is more common in patients with brain organic diseases such as senile diffuse cerebral arteriosclerosis. Cranial trauma and brain tumors can also be caused.

Paroxysmal laughter: manifested as paroxysmal inability to laugh spontaneously, many people attack several times to dozens of times a day, from a few days to several weeks, each episode lasts tens of seconds to several minutes, is a laugh Characteristics of sexual epilepsy. In addition to laughter, the disease is often accompanied by ADHD, EEG changes (indefinite duration) and varying degrees of disturbance of consciousness.

Laughter: more common in after drinking or rickets.

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