The concept of mixity is the essential cognitive cornerstone for quantifying and understanding unstable mood and restlessness, which are components of all mood disorders, diseases that always present fluctuations in mood, from the depressive component to the restless one and to the hypomanic and manic one. The GT-MSRS Mixed States Rating Scale becomes an essential means for early diagnosis.
Keywords: bipolar disorders - mixed states - GT-MSRS - mixed state rating scale.