Text written in Basque and translated automatically by Elia without any subsequent editing. SEE ORIGINAL

Two different neural circuits linked to laughter have been found in the brain

Spontaneous laughter arises in areas related to motor control and emotional regulation. However, the neuronal circuits of conversational laughter in the language-related field.

Although the functions of laughter in human relationships are evident, scientists do not know well what area it occupies in the brain. By electrically stimulating the brain, they have discovered that there are two independent and separate circuits associated with laughter, one associated with conversion laughter and another uncontrolled and spontaneously triggered laughter.

The circuits that produce spontaneous laughter are created in areas related to motor control and emotional regulation. As a result, this type of laughter improves mood and produces feelings of joy and euphoria. The neuronal circuits of conversational laughter, however, originate in the area of the brain related to language and do not produce such a sense of joy.

Researchers believe that spontaneous laughter arose much earlier in evolution. The conversational laugh could be the one that occurs along with the language, closely linked to social business. It is not yet clear which circuits follow the restless laughter.