PNV is an objective, assessment-based approach

PNV, following the principles of the Quertant Method developed by Georges Quertant

Georges Quertant was a French researcher and a pioneer in identifying certain forms of nervous system dysregulation and developing ways to restore balance. Through the development of his Psycho-Sensory Culture (CPS), better known as the Quertant Method (Méthode Quertant), he created a discipline in its own right. The goal was both simple and ambitious: to rebalance the functioning of the nerve centers located at the base of the brain through neuro-sensory exercises.

Eye movements: a precise and reliable indicator for training based on biofeedback

PNV is neuro-visual because it uses the close relationship between the eyes and the brain, now well established by neuroscience, to influence the functioning of the nervous system. PNV is practiced using specific devices derived from the diploscope. These devices present images in a particular mode of vision, involving simultaneous perception with or without binocular fusion. When the image presented is perceived correctly, this indicates that the nervous system has responded appropriately and positioned the eyes correctly. When it is not, it indicates that the brain has not been able to receive, integrate, and produce an appropriate response. Inappropriate vergence movements that distort the perception of a PNV test are extremely subtle and almost impossible to detect with the naked eye. It is the remarkable precision of these eye movements that makes them so sensitive to changes in nervous system regulation, making them a particularly useful indicator for identifying patterns of dysregulation.

Whatever the underlying cause of an inappropriate response, you can progressively train yourself to adjust these responses and maintain an appropriate level of nervous system engagement over time.br> PNV is therefore based on an objective foundation and works according to the principle of biofeedback.

What makes neuro-sensory training such as PNV unique?

– It requires no intellectual effort or analysis
The work is done simply by practicing how to maintain the tests. PNV can therefore be compared to a form of “sports training,” but at a subtler level—the level of the nervous system. Your PNV practitioner acts as a coach, supporting you throughout the process.

– The results are stable and long-lasting
Change is gradually built through regular, repeated training. PNV is therefore not a “magic pill,” which is precisely why its results can last. You can look to the future with confidence, without constantly worrying about losing the progress you have made.

– You can see your progress throughout your training
The neuro-sensory training comes to an end when the final tests in the progression no longer present any difficulty. The method therefore has a clear, objective endpoint—at the same time, its benefits can be experienced throughout the process, and you can objectively see your progress as you become able to maintain exercises that previously caused difficulty.

– PNV can complement other approaches
Our experience shows that, in many cases, restoring a more balanced nervous system functioning is enough to resolve difficulties that may initially appear to be purely physical or psychological. However, there is nothing to prevent you from practicing other approaches alongside PNV. On the contrary, experience suggests that combining different approaches (osteopathy, psychotherapy, acupuncture, naturopathy, etc.) can lead to faster and more effective results.