Is there any analysis or a scientific study that can clearly prove that it is enough for a person to be loved by a human to avoid or at least to keep far from psychosis ?
I'm not personally aware of any such study myself and doubt that such a thing is possible. Since there are any number of neurological disorders which can arise quite naturally and lead to psychosis, in these cases at least the amount of love received may not alter the course of the disorder...however, that is not to say loving support of family and friends cannot ease the burden of mental illness there are almost certainly studies that support that hypothesis.
Good question
I'm not personally aware of any such study myself and doubt that such a thing is possible. Since there are any number of neurological disorders which can arise quite naturally and lead to psychosis, in these cases at least the amount of love received may not alter the course of the disorder...however, that is not to say loving support of family and friends cannot ease the burden of mental illness there are almost certainly studies that support that hypothesis.