MNT reports on a new study that confirms the “fuzzy thinking,” or decreased concentration, is experienced by both people with depression and bipolar disorder. This finding leads researchers to believe that both mood disorders exist on a spectrum and may not be completely separate conditions. When given a test that measured sustained attention and response time, both depressed patients and bipolar patients performed equally as well as each other but significantly worse than healthy controls. This raises questions about traditional diagnoses and causes researchers to begin to move away from the idea of psychiatric disorders as discrete conditions. To read this article in its entirety, click here.