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This study will observe changes in brain imaging, behavior, and symptom measures following intervention with low intensity focused ultrasound pulsation (LIFUP) targeting reward circuitry in individuals who are depressed and anhedonic.
Full description
Participants will wear a provided Apple watch and download a study app to their personal phones in order for activity and phone use metrics to be collected. Participants will respond to weekly email surveys, daily ecological momentary assessment (EMA) surveys, complete computer-based neurocognitive assessments, undergo a baseline MRI scan with spectroscopy, receive 3 sessions of LIFUP sonication, undergo a follow up MRI with spectroscopy, then continue to be followed with surveys, neurocognitive assessment, and watch/phone data collection for 3 weeks after follow up MRI scan.
Participants will be randomized 1:1 active:sham to receive LIFUP targeting the caudate head of the brain. Conditions will be double blinded so that neither participants nor investigators or research staff know if active or sham sonication is being administered.
Enrollment
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Inclusion criteria
• Between the ages of 18 and 65
Fluent in English
Own functioning iOS smart phone (iPhone 8 or later, iOS 15 or newer) with access to reliable data plan and Wi-Fi
Right-handed
Normal or corrected to normal vision
Willingness to participate in the study, including wearing the provided Apple Watch, respond to remote survey prompts, complete an MRI scan, and provide a recorded interview.
Able to read and understand a written informed consent form
Reside in the Los Angeles area for the duration of the study
If enrolled in IRB#22-000059, have completed the majority of assessments.
Eligible for MRI scanning and neuromodulation
Willing to receive LIFUP, participate in another MRI scan, keep a study app on their personal phone, and complete 5-7 weeks of assessments.
PVSS <6.5 at screening
PHQ scores > 10 at screening
Exclusion criteria
Primary purpose
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Interventional model
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56 participants in 2 patient groups
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Data sourced from clinicaltrials.gov
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