The results show significant improving effects of the Tomatis® Program on spatial perception sense. It is interesting to note that differences in the timely development have been discovered depending on the applied test material. The analysis of the 3DW test shows a long-term effect comparable with the “Extended Tomatis® Effect” that had been shown by Mould (1985), Kershner (1986) and Du Plessis (1988) in relation with reading and writing disorders, speech performance and anxiety disorders. Also the analysis of the EST data shows a positive effect, but the long-term effect cannot be confirmed.
