Giggle

Introduction Laughter is the way humans express their joy, but not all laughs mean a happy mood, sometimes hidden behind the smile. A smirk is a special sneer. Can not be self-made, no need to stimulate, can appear in any situation, no emotional color, due to the influence of intelligent obstacles, although the patient is often happy, but the facial expressions give people a stupid feeling. More common in patients with brain hypoplasia, cerebral arteriosclerosis, senile dementia and other patients.

Cause

More common in patients with brain hypoplasia, cerebral arteriosclerosis, senile dementia and other patients.

an examination

Related inspection

EEG check EEG sharp wave

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.

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.

Paroxysmal laughter: Laughing obsessive-compulsive disorder patients often laugh for no reason, sometimes faint laughter does not show teeth, sometimes laughs more than mouth, every hour of episodes of laughter can be more than 10 times, each 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. This is a special psychiatric disorder caused by the coordination of the nervous system's excitation and inhibition processes. The unstable excitatory process causes the cerebral cortex to form a stubborn stagnant and inert excitatory lesion.

Wry smile: common in tetanus patients, this laugh is not from the patient's heart, but a destructive pathological manifestation, because the sputum toxin secreted by tetanus bacillus first invades the facial muscles, causing it to contraction. of. Laughter is accompanied by symptoms such as tightness of the jaws, rigidity of the limbs and reversal of the horns.

Strong laugh: Some people have headaches and vomiting after the injury. The sudden laughter is accompanied by sudden laughter, high jaw and jaw shaking, but the patient is conscious, thinking is not chaotic, and the response is as usual.

Smirk: This kind of laughter is seen in patients with occult depression. The inner heart is melancholy, and often smiles at people. Only the mouth is laughing, but the facial expression is not happy and passionate.

Laughing down: common in sphingomyelinopathy (also known as Niemann-Pick disease), patients mostly infants and young children, is a disease caused by genetic sphingomyelinase deficiency caused by lipid metabolism disorders. Often manifested as hepatosplenomegaly, weight loss, anemia, growth and development and intelligent backwardness, local or general pigmentation of the skin, blue sputum visible in the lumbosacral or oral mucosa. The child often has no incentive to smile, or laughs after teasing, and at the same time, the whole body is weak, then falls to the ground, and stops laughing for half a minute, and can stand up. It can be dozens of times a day.

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