Study Brain Mechanisms of Frustration With Magnetoencephalography in Healthy Volunteers
Purpose
Background: Irritability can be defined as an unusually strong response to frustration; these responses may include severe temper outbursts and a constant grumpy mood. Irritability is a common symptom of many mental health disorders. Little is known about how the brain responds to frustration, and few treatments are available for this problem. Researchers want to know more about how the brain responds to frustration. Objective: To learn how the brain responds to frustration. Eligibility: Healthy adults aged 18 to 55 years. They must have been screened through studies 01-M-0254 or 17-M-0181. Design: Participants will have up to 3 study visits in 2 months. Each visit will last up to 4 hours. Visit 1: Participants will be screened. They will have a physical exam. They will complete questionnaires about how often and how easily they get angry or grumpy. They will be trained to use a device that measures hand grip. Visit 2: Participants will have a magnetic resonance imaging (MRI) scan. They will lie on a table that slides into a tube. Padding will hold their head still. Visit 3: Participants will undergo magnetoencephalography (MEG). A cone with detectors will be lowered over their head while they are seated. The MEG will measure the magnetic fields in the participant s brain both while they are resting and while they are doing the frustration task. For the task, they will hold a grip device in each hand. They will use the devices to pick 1 of 2 doors on a computer screen. The task has 3 parts. The participant s face will be filmed during this task....
Condition
- Irritability
Eligibility
- Eligible Ages
- Between 18 Years and 55 Years
- Eligible Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
This study will include adult healthy volunteers. - Age: 18-55 - Consent: can give consent - Speak and read English --The instruments have not been validated in other languages. - At the NIH site, previously screened through other NIH protocols such as protocol 01-M-0254, 17-M-0181, and 93-M-0170 and determined eligible as healthy volunteers.
Exclusion Criteria
An individual who meets any of the following criteria will be excluded from participation in this study: - Any serious medical condition --History, physical exam, or laboratory testing including drug abuse screen. - Prescription and over-the-counter medications and dietary supplements with psychoactive properties (e.g., St. John s Wort, Melatonin, Valerian) --History, physical exam, or laboratory testing including drug abuse screen. - Any condition that interferes with MRI or MEG - Only applies to the NIH site. - History - Any current psychiatric diagnosis --SCID-V, clinical assessment, or history. - Pregnancy --Pregnancy testing will be done before all MRIs. - People who work on night shifts --History - Drug use --Subjects with drug use or positive drug screen more than two years ago are eligible for participation. - Need to wear eye glasses to work with computers - History - Eye glasses create artifacts in MEG and their rigid shape does not fit well in the MEG scanner. The MEG core has plastic optometry lenses that can be placed in paper frames. However, the paper frames need to be secured with tape which makes wearing them very uncomfortable, potentially promoting negative emotion and reducing the reliability of facial expression analysis. - Need to wear contact lenses to work with computers - Contact lenses create artifacts that interfere with eye-tracking. - Only applies to the NIH site. - History - Dental retainer - Only applies to the NIH site. - Subjects wearing removable dental retainers are eligible for participation
Study Design
- Phase
- Early Phase 1
- Study Type
- Interventional
- Allocation
- N/A
- Intervention Model
- Single Group Assignment
- Primary Purpose
- Basic Science
- Masking
- None (Open Label)
Arm Groups
| Arm | Description | Assigned Intervention |
|---|---|---|
|
Experimental Frustration task |
The experimental manipulation for this study is the frustration task. The frustration task is designed to elicit the emotional state of frustrative non-reward (FNR). During the task, participants are asked to use button press (left or right) to alternately press one of the two doors displayed on the monitor. The task has two non-frustration blocks (Block 1 and 2) and one frustration block (Block 3). During the non-frustration blocks, participants earn money for correct press on a fixed schedule. During the frustrative block, participants will not always receive reward for correct press. |
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Recruiting Locations
Bethesda, Maryland 20892
More Details
- NCT ID
- NCT06484088
- Status
- Recruiting
- Sponsor
- National Institute of Mental Health (NIMH)
Detailed Description
STUDY DESCRIPTION: Participants in this study will be healthy adults. This protocol uses a frustration induction task, magnetoencephalography (MEG), and brain magnetic resonance imaging (MRI), coupled with physical and self-report assessment of frustration, to study brain mechanisms underlying frustration in adults. This study is part of a cross-species project; hence, hypotheses are based on neural mechanisms of frustration identified in mice. OBJECTIVES: To use a frustration induction task, MEG, and brain MRI, coupled with physical and self-report assessment of frustration, to measure how frustration alters synchronized neural activities and physical activities. Specifically, we will identify brain circuits and neural oscillations that potentially underly the emotional and behavioral consequences of frustration and characteristic changes in grip force, pupil/cornea size, and facial expressions that can be used as objective measurements of frustration. ENDPOINTS: 1. The power of neural oscillations in the cortical-basal gangliathalamic circuit, which we hypothesize will be altered by frustration comparing pre and post-frustration resting states, and increased more by unexpected reward omission than reward attainment; 2. Coherence of neural oscillations in the above-mentioned circuit, which we hypothesize will be increased in the beta band by unexpected reward omission but not by expected reward omission, and that this decrease will accumulate with the number of frustration episodes; (3) Frustration rating by self-report, facial expression, pupil/cornea size, and the duration and strength of gripping, which we hypothesize will be higher after unexpected reward omission than after expected reward omission