What you are seeing here is the brain's activity, where a patient, now a human this time, taps his finger, puckers his lips, taps his tongue and is listening and thinking of words.
Lo que vemos aquí es la actividad del cerebro, donde un paciente --en este caso una persona-- golpetea los dedos, frunce los labios, mueve la lengua, y escucha y piensa en palabras.