AUTHOR=Tiruvadi Vineet , Choi Ki Sueng , Gross Robert E. , Butera Robert , Jirsa Viktor , Mayberg Helen 

TITLE=Dynamic Oscillations Evoked by Subcallosal Cingulate Deep Brain Stimulation

JOURNAL=Frontiers in Neuroscience

VOLUME=16

YEAR=2022

URL=https://www.frontiersin.org/journals/neuroscience/articles/10.3389/fnins.2022.768355

DOI=10.3389/fnins.2022.768355

ISSN=1662-453X

ABSTRACT=<p>Deep brain stimulation (DBS) of subcallosal cingulate white matter (SCCwm) alleviates symptoms of depression, but its mechanistic effects on brain dynamics remain unclear. In this study we used novel intracranial recordings (LFP) in <italic>n</italic> = 6 depressed patients stimulated with DBS around the SCCwm target, observing a novel <italic>dynamic oscillation</italic> (DOs). We confirm that DOs in the LFP are of neural origin and consistently evoked within certain patients. We then characterize the frequency and dynamics of DOs, observing significant variability in DO behavior across patients. Under the hypothesis that LFP-DOs reflect network engagement, we characterize the white matter tracts associated with LFP-DO observations and report a preliminary observation of DO-like activity measured in a single patient's electroencephalography (dEEG). These results support further study of DOs as an objective signal for mechanistic study and connectomics guided DBS.</p>