In addition to the positive results achieved with our clients and which have made our reputation, our method has also proven its effectiveness scientifically. The research continues to grow as the areas of application of the method are extended. Indeed, the acoustic sensory message plays a key role in the development of the individual and, as a result, connects to a broad range of disorders.

The scientific partners with whom we work include several public bodies (ministries, research institutes, hospitals) as well as universities, specialised associations and foundations. Their involvement ensures the objectivity and reliability of the results presented for you in a non-exhaustive overview in the following tables.

Auditory Processing Study

Auditory processing study	TAPS subtests (test of auditory Perceptual Skills)	Pre/Post (%)
Ross-Swain (The Swain Center) reviewed the pre / post treatment testing results of 41 selected clients that had Auditory Processing Problems which can affect listening comprehension. After sessions of the Tomatis listening program, the results show a strong increase in ability to use memory to better listen and communicate.	N	41
	Auditory Processing Overall	8.4/58.3
	Auditory Discrimination	14.2/68.1
	Auditory Memory, digits	9.7/46.0
	Auditory Memory, digits reversed	19.1/37.4
	Auditory Memory, words	12.2/48.5
	Auditory Memory, sentences	16.4/53.4
	Auditory Processing	23.2/56.6
	Following Directions	31.3 / 66.5

Psychological Disorders

Du Plessis Study	Pre/ Post Anxiety Scores
Du Plessis (University of Potchefstroom, South Africa) studied 10 anxious university students who received the Tomatis listening program, 9 who received psychotherapy program and 10 assigned to the control group.   The Tomatis group showed significant reductions in anxiety, while the results were mixed for the psychotherapy group and no change in anxiety was found in the control group.   Another Du Plessis' study showed that the Tomatis group had maintained its reduced level of anxiety after 14.3 months and that the level of self-actualisation had increased significantly. No change was detected in the control group.		Tomatis	Psychotherapy	Control
	N (number)	10	9	10
	CAS (Children's Anxiety Scale)	9.6/7.6	11.0/11.3	8.4/7.7
	STAIC Trait	42.8/32.9	41.2/37.1	37.2/37.6
	STAIC State (State-Trait Anxiety Inventory for Children)	32.8/27.6	30.7/28.1	31.3/30.0

Spaggiari report		N	Success %
Dr Spaggiara, psychiatrist, evaluated the impact of the Tomatis listening program on 409 people with psychological disorders.   The highest success rate was scored in treating Anxiety Disorders, where the success rate approached the level of success in treating learning difficulties (78%).	Anxieties with Panic	45	72
	Psychosomatic Anxieties	71	73
	Bipolar/ Manic/ Depressions/ Cyclotomia	97	58

D'Orthy Study	Pre/ Post (control group)		Pre/ Post (Tomatis group)
D'Orthy (Hospital Foch, near Paris), compared anxiety in a control group of 683 expectant women who received only the traditional preparation technique and 53 expectant women who received a shortened version of The Tomatis listening program.   The results showed a decrease in anxiety among the Tomatis mothers, whereas in the control group anxiety increased slightly.	N	683	53
	Hamilton test (self administration test measuring anxiety)	4.4/4.7	5.7/4.0

Learning Disabilities And Behavior Problems

Gilmor Meta-Analysis	Field	N	Average progression (%)
Gilmor’s meta-analysis is based on a study of 225 children with learning and communication difficulties. This analysis shows that the Tomatis listening sessions have a significant impact in the following areas: language, cognitive and psychomotor development, social and personal behavior.	Linguistics	225	41
	Psychomotor	153	32
	Personal and social behavior	225	31
	Cognitive	152	30
	Hearing	77	4

Etude Wilson (Hôpital universitaire de North Shore - Université de Cornell, New-York)	Test	TOMATIS / Control (% Change)
Wilson studied 26 children suffering from a language disorder. Eighteen (18) children received Tomatis listening sessions and 8 were assigned to the control group. The results show progress for the Tomatis group in the following areas: communication, openness of hearing and ability to reproduce sound.	N	18 / 8
	WIG Communication Score (test designed for the study)
	Parent evaluation	22 / 12
	Teacher evaluation	34 / 27
	Language Domain (non-specified test)
	Sound reproduction	86 / -9,s
	Openness of hearing	38 / 3

Study 1 and 2 Brickwall House Institute (East Sussex, England)	Test	Tomatis/Control
Brickwall studied 47 dyslexic children suffering from a delay in reading of 4/5 years. Twenty-four (24) of these children underwent Tomatis listening sessions. The remaining 23 children were assigned to the control group. The results show a significant difference in favor of the Tomatis group in reading ability and expression.	N	12 / 12 or 24 /24 depending on the test
	Receptive Vocabulary (BPVS)	19 / 4,s
	WRAT Reading (raw scores) - Lecture	51,s / 19, s
	WRAT Spelling (Raw scores) - expression	53 / 20,s
	Verbal Fluency (raw scores)	52 / 39,s
	Neal Reading (accuracy)	21 / 11
	Neale Reading (comprehension)	19 / 7

Study of the Nordiska Tomatis Centre	Domain	Pre / Post (% Improvement)
The Tomatis Centre of Sweden evaluated the impact of Tomatis listening sessions on 56 people. Significant progress was recorded in terms of attention and energy as well as on motor performance and adaptability.	N = 56
	Attention	20
	Motor ability	12
	Expression	10
	Energy	11
	Behavior and adaptability	12