Ajattelin tämän artikkelin avulla toristaa Jahofvea: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3196952/ "Loosening of associations is of particular relevance in Bleuler?s model of schizophrenia because this symptom is intended to be primary?close to the organic substrate of the disorder, and fundamental?always present over the illness course. Thus, according to Bleuler, formal thought disorders would be of paramount pathological and diagnostic importance. Cuesta and Peralta20 (in this issue) address the specificity issue of formal thought disorders for schizophrenia-spectrum disorders and major mood disorders, and more specifically, they tested the hypothesis recently advanced in the Bulletin by Lake21 that formal thought disorders are severe mood disorders. The authors found that formal thought disorders are a multidimensional construct comprising at least 5 domains: disorganized speech, verbosity, poverty of speech, idiosyncratic thinking, and blocking. The disorganized speech factor was the most relevant component of thought disorders and appeared to entail the essential components of Bleuler?s loosening of associations. While severity of formal thought disorder components significantly differed across diagnosis, no one factor was specific to a given disorder. These findings do not support neither Bleuler?s nor Lake?s hypotheses; in fact, they support the consideration of formal thought disorders, and particularly disorganized speech, as a relative unspecific syndrome within psychotic and major mood disorders."