Laughter is the orchestral accompaniment to the basic emotion of joy when this has a strong intensity. It is a natural response that the baby appears healthy after four months and that is not learned by conditioning or by imitation. It is a strong set of physiological reactions and unstoppable, a convulsive state of the whole organism.
In 1900, Dr. GVN Dearborn in the journal Science published an article titled “Smile and the Laugh” in which he described the physiology of laughter. Established eighteen clonic spasms of the diaphragm; detailed muscular contractions of the face and body as well as the expansion of the arterial system and causing reddening-ment; and referred to as the eyes in their sockets forward to acti-var the tear glands.
Laughter has three sources: physical, emotional and intellectual. The physical origin is sensory stimulation: tickling.
In virtually all cultures, mothers and laughter stimulate their babies and establish a more intimate bond. Analyzing different mammals, Robert Provine, a neuroscientist at the University of Maryland, suggests that laughter is a powerful communication system that should be evolutionarily pre-verbal language. Share tickle relaxes and causes gratitude and attraction to whom we make them. Therefore, tickling can arouse sexual games, since, in addition, tender points are usually close to the erogenous zones or superpo-nerse them.
The intellectual origin of laughter, meanwhile, would be what we call humor.
Laughter is activated by the frontal lobes, which send a message to the rest of the brain such as “let go and enjoy the thrill of laughter you pensa-tion causes this or that situation.” Describe the sense of humor has occupied many pages; here we will just record their existence. It is a cause of great laughter rational and complex relationships with the culture and capacity of transgression of the people component.
As for the emotional origin of laughter, the discovery of mirror neurons helped them understand why it is contagious. The discovery in 1996 of the mirror neurons by Giacomo Rizzolatti team from the University of Parma, revolu-were correlated field of neuroscience. Before this discovery, it was believed that neurons were specialized to be perceptual, motor or cognitive, but Rizzolatti team showed that mirror neurons are both perceptual and motor time. This means that stimulate both when we perform an action and when we see that someone holds or even to imagine that we could do it. These neurons are also stimulated to see an action we’ve ever done but it has the same effects as other actions that do’ve done before. Therefore, thanks to mirror neurons, humans and advanced mammals have the ability to identify the intentions of others from their elementary actions and we also identify the moods and emotions of our partners for their language nonverbal (empathy). It has been shown that every intention is associated with specific actions that give expression, and that each action evokes any associated intentions. And the effect of mirror neurons, each perception of intenció-ality makes us feel, if only for a few milliseconds, emotion involved. When we see that a person has a fit of laughter, our neuro-nas mirror stimulate us immediate understanding of their pleasure and, if laughter persists, we spread the excitement.