[On the estimation of the vibration of human skulls (author's transl)]

The skull as a biosystem capable vibration shows characteristic oscillation modes with specific Eigen-frequencies. For the calculation of the these values we used a test method. The 4 lowest Eigen-frequencies are in the range of 1-3 KHz(f1 = 1,03 +/- 0,35KHz;f2 = 1,71 +/- 0,13KHz;f3 = 2,16 +/- 0,12 KHz and f4 = 2,57 +/- 0,11 KHz;n = 13). The shifting of the vibration mode is of diagnostic value in estimating of skull-basis-fractures.