Earworms: Why catchy tunes get trapped in our heads

Earworms are songs that we haven't get out of our brain. Earworms show a part of our brain that it's out of control and refuse to leave when we tell them. This songs normally are simples and repetitives. It's possible that the similitude of the music rec  grooves in our mind. Grooves in which earworms can work. This circumstance it's for the sensibility of the brain of the music. The eraworms are very power because you can suffer a atack of one earworm if one person tell the name of the song. The fenomen of the eraworm affect at the memory of long time. But the eraworms can work in the memory of short time, in the anomenate slave memory. This part help we at thinking of  the acts of this day, but  with eraworms we can't think and the song be repited in our brain