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Causal Role of Top-Down Theta Oscillations in Prioritization
Sponsor: University of North Carolina, Chapel Hill
Summary
Purpose: The purpose of this pilot study is to investigate the dynamics between theta and alpha oscillations in the control of working memory. These findings will be informative of what types of brain stimulation are most effective at modulating brain activity. Deep brain stimulation and transcranial magnetic stimulation are used for an increasing number of neurological and psychiatric disorders. Participants: Eligible participants are patients who have previously had electrodes implanted to monitor epilepsy (outside of research activity). 50 participants will be recruited, 25 participants for each phase of the study. Procedures (methods): The participants will perform a cognitive control task. During the task, rhythmic trains of direct cortical stimulation will be delivered to the frontal cortex alone or to the frontal and parietal cortex. Electrocorticography will be collected concurrent with stimulation.
Official title: Modulating Oscillations and Working Memory in Patients With Subdural Electrodes
Key Details
Gender
All
Age Range
18 Years - 80 Years
Study Type
INTERVENTIONAL
Enrollment
50
Start Date
2024-07-01
Completion Date
2026-01-31
Last Updated
2025-01-08
Healthy Volunteers
No
Conditions
Interventions
Direct cortical stimulation (DCS) Alpha
Rhythmic alpha stimulation
Direct cortical stimulation (DCS) Theta
Rhythmic theta stimulation applied
Sham Direct cortical stimulation (DCS)
Arrhythmic stimulation paradigm applied
Direct cortical stimulation (DCS) In-Phase Theta
Rhythmic in-phase theta stimulation applied
Direct cortical stimulation (DCS) Anti-Phase Theta
Rhythmic anti-phase theta stimulation applied
Locations (1)
University of North Carolina at Chapel Hill
Chapel Hill, North Carolina, United States