“Let your ears be tweaked ! »

A synthetic view of the scientifically measurable effects resulting from sonic cures and musicotherapy.

Dr Bernard Auriol


Conference given at "Latitudes Conferences", 19th July, 2005 in the Cultural Centre of  “Moulin de La Toulzanie" (Lot, France)

 Cycle Organized by Pr Barbara Philips, PhD

Translated in English by Nahia Bonzom-Gourc.


In our culture, the musical criteria which can have an determined physiological effect are not well-defined yet. On the contrary, other civilizations (China, India especially) have described with rigorousness and details how sonorous emissions work. But explanations given by these cultures, are not translated in term of modern physiology. The “musicotherapy” studies the processes using the interaction between the patient and his surroundings.

The sounds therapy can have various applications, like when we speak about “musicotherapy” :

In his common meaning and without using the treatment of the signal, the musicotherapy can enter in the treatment strategy in all cases almost, at the expense of the imagination, of the culture and of the practitioner know-how. It will be a question of relieving anguish, of restoring or improving the communication, removing inhibitions, easing the gesture and motor coordination’s harmony.  


Indications for the classical musicotherapy
Sensorial -motor physiotherapy for spastic, sensorial or linguistic handicapped persons. Rhythmic method for the mentally deficient persons ; body and personality disorders.
Stimulation for hypersomnia, for cerebral ageing (brain training), for psychomotor inhibitions ; going with Sakel therapy, “moist packs”, easing and wake-up of anaesthetic or coma
Sedation : Anxiety, Insomnia .

Some methods get a more precise specific objective:

1. The Lafon appliance in order to improve the comfort and the linguistic ability of the deaf person by transposition of frequencies towards “lower pitch”    

2. The cassettes conceived in order to ease relaxation (suggestions given by the voice of “terpnos logos” of Caycedo, or “soaring” musics).

3. The Feijoo sounds used for obstetrical  dental analgesia (very low-pitched sounds, very simple and of which the length fluctuates)

4. The « suvag lingua » of Gubérina for the reeducation of the deaf person or the learning of foreign languages (it is question of a bench of filters “passes” ; a kind of equalizer)

5. The  Lexiphone of Isi Beller in order to treat the dyslexia (this appliance gives the most high-pitched sound that can be listened by  the patient ; this sound is set up by the fundamental of the voice of the patient and given in real time when this last one is speaking or is reading a text)

6.    The electronic ear and its like :

a.    « sémiophone » of Isi Beller,

b.   filter of Bérard,

c.    akousmatix of Auriol and Thourel, etc.



 All these methods have Tomatis as instigator more or less direct, who the first, has suggested to cure by this way :

1.The vocal troubles of the singer, and the psychological “dysphonia” (stammering).

2.hearing sensitiveness ; excessive or decreasing sensitiveness

3.Some reading, writing and spelling difficulties

4.Some attention difficulties : hyperkinetic child (ADHD), unstable, inattentive

5.Trouble linked with a disturbance of the desire to communicate and to learn. Gerard Depardieu (1988) among others, famous or less famous,   stress upon the releasing produced by the filtered sounds therapy.




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1 Novembre 2005