Definition of sociopsychobiological model of mental illness

I deliberately used the term "sociopsychobiological" in my previous post. This was to try and reverse the eclectic understanding of the biopsychosocial model of mental illness. I do agree with the biopsychosocial model of George Engel (eg. see previous post). But psychiatrists often claim they are biopsychosocial when in fact they are merely supporting a weaker form of the biomedical model (see extract from my last chapter of Critical Psychiatry (2006)).