[[File:Mechanic Silent Period.jpg|thumb|'''Figura 1d:''' Mechanical silent period evoked by percussion of the chin through a triggered neurological hammer. Note the functional symmetry calculated on the integral area of the right and left masseters.]] | [[File:Mechanic Silent Period.jpg|thumb|'''Figura 1d:''' Mechanical silent period evoked by percussion of the chin through a triggered neurological hammer. Note the functional symmetry calculated on the integral area of the right and left masseters.]] |