Stimulation-Induced Changes in Fronto-Limbic Connectivity Control Regulation of the Emotional Response to Threat

Status: Recruiting
Location: See location...
Intervention Type: Procedure
Study Type: Interventional
Study Phase: Not Applicable
SUMMARY

The purpose of this research is to better understand how emotion processing unfolds in the brain using stereoelectroencephalography (sEEG) and direct brain stimulation. This study will use standard behavioral emotion processing tasks combined with neural recording and direct brain stimulation to assess different aspects of emotion processing. Stimulation pulses during pre and post-test periods will assess the effects of stimulation before and after conditioning, the results of which will be combined with results from the activity of each electrode during the emotion tasks to inform us of the nature of emotion processing in the brain and allow us to devise brain modulation protocols in the future.

Eligibility
Participation Requirements
Sex: All
Minimum Age: 18
Healthy Volunteers: f
View:

• 1\) implantation of sEEG electrodes for SOC epilepsy surgery evaluation

• 2\) cognitive ability to perform simple tasks and to understand instructions

• 3\) implanted electrodes in the amygdala and medial PFC regions

• 4\) competency to understand and sign a written informed consent.

Locations
United States
Alabama
Epilepsy Monitoring Unit UAB Hospital
RECRUITING
Birmingham
Contact Information
Primary
Rebekah Chatfield, BS
joyb3@uab.edu
(205) 975-3477
Time Frame
Start Date: 2023-03-01
Estimated Completion Date: 2026-02-28
Participants
Target number of participants: 30
Treatments
Experimental: Acquisition Stimulation Test
Single pulse stimulation will be delivered and measured prior to the rating task. Next, subjects perform the Pavlovian fear conditioning paradigm. Participants will be asked to perform a rating task automated on a PC where they continuously update a rating bar using the touchpad to indicate their confidence that a static sound is about to occur on a moment-by-moment basis (0-not confident to 100-very confident). For the stimulation experiment, research staff will explain that electrical stimulation will be applied before the rating task, in isolation, as well as on some trials at controlled time points while the patient performs the rating task
Related Therapeutic Areas
Sponsors
Leads: University of Alabama at Birmingham
Collaborators: National Institute of Mental Health (NIMH)

This content was sourced from clinicaltrials.gov

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