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ENROLLING BY INVITATION
NCT06252532
NA

Causal Role of Top-Down Theta Oscillations in Prioritization

Sponsor: University of North Carolina, Chapel Hill

View on ClinicalTrials.gov

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

Interventions

DEVICE

Direct cortical stimulation (DCS) Alpha

Rhythmic alpha stimulation

DEVICE

Direct cortical stimulation (DCS) Theta

Rhythmic theta stimulation applied

DEVICE

Sham Direct cortical stimulation (DCS)

Arrhythmic stimulation paradigm applied

DEVICE

Direct cortical stimulation (DCS) In-Phase Theta

Rhythmic in-phase theta stimulation applied

DEVICE

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