Physiology knowledge is basic for treating in psychiatry as in medicine. The neuropsychophysiology has always to be considered in psychiatric research, in order to manage a treatment based on scientific and medical principles.

Our objective is to correlate a theoretical position to possibility of treating psychosis by psychotherapy.

The aim of our study is focused on the ‘human birth theory’ that formulates a primitive neuropsychophysiological condition, so that healing can be conceived as recreation of the natural state.

In Italy the birth's theory has been formulated by Fagioli through the ‘deductive method’ in 1971 and it has been focused on the activation of cerebral cortex and unconscious thought (’pulsione’), together by stimulation of light energy. This psychophysical activation includes ‘capacity to react’, ‘viability’ and ‘capacity to image’. Recent physiological findings strongly support this theory (Gatti, 2012).

This theoretical position connects psychosis to the loss of complex psychosomatic human physiology, naturally current at birth, caused basicly by unconscious human relationship. We have observed that 42 Italian psychiatrists were adopting this method in 1992, while psychiatrists number has raised to 169 in 2013, with total of 1586 patients (413 psychotics) and 128 psychotherapy groups in 2009.

An intervention based on those principles can aim to recreate physiology, as in medical practice. Consequently, healing psychosis like possible ‘restitutio ad integrum’ can be applied. The practice of this theoretical method in a specific group psychotherapy, focused on the research of lost physiological features, makes this recovery possible, by the human relationship to the psychotherapist.