Biomarkers of Depression Symptoms Defined by Direct Intracranial Neurophysiology
Scangos, K. W.; Khambhati, A. N.; Daly, P. M.; Owen, L. L. W.; Manning, J. R.; Ambrose, J. B.; Austin, E.; Krystal, A. D.; Chang, E. F.
Show abstract
Quantitative biological substrates of depression remain elusive. We carried out this study to determine whether application of a novel computational approach to high spatiotemporal resolution direct neural recordings may unlock the functional organization and coordinated activity patterns of depression networks. We identified two subnetworks conserved across the majority of individuals studied. The first was characterized by left temporal lobe hypoconnectivity and pathological beta activity. The second was characterized by a hypoactive, but hyperconnected left frontal cortex. These findings identify distributed circuit activity associated with depression, link neural activity with functional connectivity profiles, and inform strategies for personalized targeted intervention.
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