The History of PNV
PNV Neuro-Visual Training was created in 2014 by Hélène van Seters-Husson. It grew out of the Quertant Method (Méthode Quertant), also known as CCPS (Cerebro-Psycho-Sensory Culture), developed by Georges Quertant. The Quertant Method was recognized by the French State Secretariat for Health in 1942, and in 1952 Georges Quertant was appointed Knight of the Légion d’honneur by the Ministry of Education in recognition of his work.
While the theory and foundations of PNV remain faithful to the Quertant Method, PNV differs in the way it engages the individual in their own learning process, while also taking into account the person as a whole and their different dimensions
Hélène van Seters-Husson shares how she discovered this extraordinary approach and the choices she made:
“Meeting Marguerite Quertant was an extraordinary experience for me. She was a charismatic, remarkable woman, deeply passionate about her father and his work. She sparked a flame in me that, more than 25 years later, is still just as vibrant and powerful. When she passed away in 2011, she entrusted the name of the Quertant Method to Brigitte Boni, who continues to carry the project forward today. I chose to develop and evolve the project by making different choices, and this led me to create PNV. This approach moves beyond the old ways of working and embraces an era of sharing, as well as new approaches to learning. It is part of a world in transition, one that is increasingly choosing collaboration and exchange. The creation of the affordable 4-in-1 device means that anyone can have access to the equipment without the burden of cumbersome installations, opening up possibilities for training that were previously out of reach.
In this way, I hope to contribute to the development and long-term future of an approach that deserves, more than ever, its place in a world where our nervous systems are under so much pressure.”
Like the Quertant Method, PNV aims to regulate the nerve centers through a form of micro-exercise for the eyes, using specific devices. This process can help resolve many forms of nervous system dysregulation, while also giving people the means to regain greater intellectual performance, better discernment, greater regulation of sensitivity, and a greater sense of inner calm.
Psycho-Sensory Culture (CPS)
Who was Georges Quertant (1894–1964)?
Georges Quertant was a remarkable researcher of the last century. He was also a conductor and educator, and spent more than 20 years developing Psycho-Sensory Culture, also known as the Quertant Method. After observing the effects of music on the psychiatric patients of his physician brother, he began passionately investigating the effects of music on the conditions he encountered. However, limited by the sound-reproduction technology available at the time, he turned his attention to vision, touch, and vocalization.
This became an intensive program of research. Inspired by his intellectual mentor, Claude Bernard, the famous 19th-century physiologist, he sought to develop an approach that could use the sensory system to access “the nervous organs” and restore greater balance to their functioning. The technique was subsequently developed with children experiencing difficulties and adults with various forms of nervous system dysregulation. His daughter Marguerite Quertant (1923–2011) had visual difficulties that led him to investigate the visual dimension in greater depth and work with her to improve her severe strabismus. She was deeply grateful to him and subsequently devoted her life to her father and his method.
Although Georges Quertant had developed a multimodal approach involving vision, hearing, touch, and vocalization with remarkable scientific precision, he passed on only the visual modality to his daughter. Today, Quertant CPS is therefore no longer sensory in the broad sense, but exclusively visual. It is based on specific training devices known as diploscopes, created by Dr. Armbruster (1909), who provided the equipment needed for the visual dimension of CPS.
At the time of Georges Quertant’s death, he had trained only his daughter. During her lifetime, she trained only a small number of people.