Auditory stimulation of the skin and whole body perception.

Spatial hearing normally is understood as binaural cochlear hearing: phase-differences of sound waves are processed in parallel by the left and right ear, resulting in the perception of 3D-soundspaces.

Human spatial perception is always a combination of this kind of binaural cochlear hearing and another kind of whole body perception with the skin as receptor organ. Ashley Montagu wrote 1971: “As the most ancient and largest sense organ of the body, the skin enables the organism to learn about its environment. It is the medium in all its different parts, by which the external world is perceived.”

Dominant sound receptors in the human skin are MEISSNER cells with a maximum sensitivity at 30 Hz and the PACINI cells with peak sensitivities at 300 Hz. Especially in early childhood, when the density of these receptor cells is large (eg. 80 MEISSNER cells per square millimeter of the skin), whole body sound perception via the skin seems to be very important. The early beginnings of prenatal listening to external speech- and sound-stimuli, long before the maturation of the cochlear, could be explained with fetal “skin-listening”. This sound-sensitivity of the skin decreases with age and the elderly person has not more than 4 MEISSNER cells per square millimeter.

We believe that whole body sound perception enhances our sensibility in general and that sound massage should be developed further to some kind of SOUND YOGA. For deep sound meditations we have designed our SONARIUS Moving Sound amplifier, one of the R&D products of LeonardoEvolution GbR, which has been approved as international PCT (Patent Cooperation Treaty) certificate. It allows axial and circular moving sound stimulations of human listeners, and here, especially with very slow circular moving homophonic sound pieces, we have achieved beautiful deep-relaxation effects.

In the drawings below we have sketched PACINI-and MEISSNER-cells in the human skin. A further drawing shows a circular mode SONARIUS session for one listener, sitting/laying in the center of a 4-speaker-set-up.

With the pictures in the gallery one can see 4- and 8- speaker SONARIUS listening rooms. Especially the SONARIUS equipment with 4 speakers, suitable for axial and circular moving sound session, has been applied successfully in QI-GONG exercises. Slow axial sound movements, suitable for 2- speaker stereo equipment, are already included in our BabyQ PRE-and POST-activities. Continuing the SONARIUS project, we would like to develop a variety of soundscapes, including axial sound movements, which could serve as sound yoga applications, adapted for tablet computers and smartphones.

               Pacini-Cell                                                                Meissner-Cell 




All rights reserved, Thomas Blum, Leonie Shihora,