New Delhi: Health experts have claimed that brain abnormalities are similar across distinct emotional disorders. “This study provides important insights into mechanisms shared across multiple emotional disorders, and could provide us with biomarkers that can be used to more rapidly diagnose these disorders,” said study senior author Scott Langenecker, Associate Professor at the University of Illinois at Chicago in the US. Those disorders are sometimes taken many years to be diagnosed accurately. The most common difference in white matter structure that Langenecker’s group found — present in every emotional disorder they looked at — was disruption in a region of the brain that connects different parts of the “default-mode network”, which is responsible for passive thoughts not focused on a particular task. That area is the left superior longitudinal fasciculus or SLF, which also connects the default-mode network and the cognitive control network, which is important in task-based thinking and planning and tends to work in alternation with the default-mode network. The constant negative thoughts or ruminations associated with most emotional disorders appear to be due to a hyperactive default-mode network, Langenecker said.
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