Yes, I remember there is a DSM (Diagnostic and Statistical Manual of Mental Disorders)... My point is that, as according to what has been written in the articl

Yes, I remember there is a DSM (Diagnostic and Statistical Manual of Mental Disorders)... My point is that, as according to what has been written in the article, "...the disordered and extreme thinking that accompanies depression..." and "In a study of 61 depressed subjects, 4 out of 5 reported at least one upside to their rumination, including self- insight, problem solving, and the prevention of future mistakes..." it seems that the article is merely focusing on the type of depression that involves "thinking" and "rumination"...and there is a certain sub-range of the entire spectrum, of what is called "Major Depressive Disorder" as in the "academic" and "clinical" settings, that does not involve thinking or rumination -- or significantly reduced level of thinking and rumination -- then this subtype of depression is not actually covered in that study, and hence the conclusion of the study has no bearing, for that matter, on what we call "depression" as a whole, but only a subcategory of all the possible depressive symptoms ...