previous post), in her post on the Wellcome Trust blog, does not doubt that the reason biomarkers for depression have not been found is because of the "complexity of the disorder as well as a deficiency of tools and technologies to help solve the problem". Oh dear, she thinks biobehavioural combinations of psychological symptoms and body fluid measures is the answer. The reason elevated morning cortisol isn't a biomarker, she reckons, could be because we haven't combined it with high depressive symptoms as a risk factor for major depression, at least for adolescent boys.
Don't waste your money giving MQ the opportunity to follow another blind alley, which if it's being responsible, it shouldn't have misled you into.
(With thanks to Peter Kinderman)