Anxiety disorders such as post-traumatic stress disorder (PTSD) and generalized anxiety disorder (GAD) affect a large number of individuals with a significant portion of patients failing to improve with current treatments. The purpose of this study is to understand the brain mechanisms that produce fear and anxiety in humans. To accomplish this goal, we will measure the brain activity along with the heart rate and skin perspiration of patients while they are completing tasks on a computer. Some of the tasks will also use a virtual reality headset and transport the patient in a video game-like environment. These tasks will expose the participants to various levels of fear-provoking images. Participants with responsive neurostimulation (RNS) implants will be enrolled under Pro00117931 at Duke, but their results for fear and anxiety tasks will be reported under NCT05120635.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
DOUBLE
Enrollment
80
Deep brain stimulation will be used
Virtual and augmented reality tasks will be used.
University of California Los Angeles
Los Angeles, California, United States
RECRUITINGDuke University Health System
Durham, North Carolina, United States
RECRUITINGPhysiological change - eye-blinks
Eye blinks will be measured using an eye tracking device and will be measure in blinks per second.
Time frame: during the intervention/behavioral tasks with and without stimulation
Physiological change - heart rate variability
heart rate variability will be measured in milliseconds.
Time frame: during the intervention/behavioral tasks with and without stimulation
Physiological change - skin conductance
Skin conductance will be measured in microSiemens.
Time frame: during the intervention/behavioral tasks with and without stimulation
Neurophysiological activity
Neurophysiological activity will be measured in Hz
Time frame: during the intervention/behavioral tasks with and without stimulation
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