443 Clinical Trials for Various Conditions
The goal of this clinical trial is to examine the impact of a specific guided meditation (Twin Hearts Meditation; THM) on cognitive functioning and EEG dynamics in experienced and inexperienced meditators. The main questions it aims to answer are: * Will the experienced meditators outperform inexperienced meditators on the attention control tasks (Flanker, Trails A \& B) at baseline (pre-meditation)? * Will both groups show improvements in performance after meditation associated with mood and physiological state changes? * Will the experienced meditators show an overall mood profile of higher positive mood states and less negative mood states (Brunel Mood Scale subscale difference) at baseline (pre-meditation)? * Will both groups show mood state improvements after meditation? * Will the experienced meditators show differences in electrophysiological characteristics compared to inexperienced meditators? * Will inexperienced meditators exhibit shifts from their baseline resting-state EEG towards being more similar to the EEG characteristics of experienced meditators at baseline? * Will experienced meditators demonstrate differences in P300 latencies and amplitudes on the auditory oddball paradigm. Participants will: * Take a series of pre-meditation surveys. * Complete pre-meditation P300 auditory oddball task. * Complete pre-meditation cognitive behavioral task set. * Continuous 19-channel EEG recording before and after pre-recorded guided THM. * Take a series of post-meditation surveys. * Complete post-session P300 auditory oddball task. * Complete post-session cognitive behavioral task set.
The purpose of this study is to evaluate the effectiveness of the CGX/Lucidify EEG system in enabling physicians to detect delirium (confusion) in medically ill patients as early as possible in order to minimize the detrimental effects of delirium. The study will involve collecting EEG data through the CGX EEG system (a Research-grade 2-Channel EEG device) and applying the Lucidify EEG software algorithm to identify indicators and degree of delirium, obtain data regarding the amount and degree of patient's movement and activity throughout the day in order to detail delirium subtype, and obtain data regarding the quality of the sleep as it affects delirium severity and duration. By enhancing early detection, this research aims to improve patient outcomes and inform clinical decision-making.
This study aims to assess the impact of social influence on direct neural recordings in human patients undergoing surgical treatment of epilepsy. 24 patients recruited from the Epilepsy Center at Dartmouth Health Medical Center (DHMC) will undergo electrode implantation throughout the brain to localize epileptogenic zones. Patients will be asked to rate their provider's warmth, competence, and other, similar traits associated with care-competency. They will then complete the picture-induced fear and math portions of the multimodal negative affect task (MNAT) during which iEEG is recorded.
This study aims to better understand how epilepsy alters brain function through neuroimaging of healthy people and people with epilepsy. The study investigates how changes in brain metabolism (sugar consumption, measured by positron emission tomography \[FDG-PET\], and blood flow, measured by functional magnetic resonance imaging \[fMRI\]) relate to abnormal interictal electrical activity associated with epilepsy (measured by electroencephalography \[EEG\]). The study will also compare how the three imaging modalities localize regions of abnormal function in the brain.
This is a randomized, sham controlled study of the Electroencephalogram (EEG) based Transcranial Magnetic Stimulation (eTMS) treatment for Post-Traumatic Stress Disorder (PTSD). The recruitment goal is 110 participants who are United States Military veterans or first responders (e.g., firefighters, police, paramedics, etc.). The Study includes an EEG recording in order to determine the optimal treatment parameters for the eTMS system, followed by 15 in-office visits that take place over 21-28 total days. Two eTMS treatment sessions are administered during each office visit.
To learn about occupational stress among surgeons and musicians by integrating psychological assessments, neurophysiological measures, and biomarkers.
This study is designed to assess the effect of a single dose of MK-8527 on the single-dose pharmacokinetics (PK) and the safety and tolerability of levonorgestrel/ethinyl estradiol (LNG/EE) in healthy adult postmenopausal or ovariectomized female participants.
The goal of this clinical trial is to learn if training with the Prism system can reduce PTSD symptoms in US military Veterans and civilians with PTSD. Prism is a form of neurofeedback training that uses EEG signals to promote self-regulation of brain function. The main question this study aims to answer is: Does Prism training lead to decreased PTSD symptoms in US Veterans and civilians when used in addition to usual PTSD treatment? Researchers will compare Prism training to a sham training (a look-alike training that does not provide real feedback on brain activity) to see if Prism training decreases PTSD symptoms. Participants will: * Complete two one-hour in-person training sessions a week for about 8 weeks (15 sessions) * Complete two booster training sessions one month and two months after finishing the main training course * Participate in three detailed interviews: one before training, a second after nine weeks of training, and a third one month after the last booster training session (about 20 weeks after the initial visit)
The goal of this observational study is to learn about the usability of portable EEG sensors (REMI) in the home with infants and young children. The main question it aims to answer is: Can families comfortably use portable EEG sensors (REMI) in the home with their children? Families will wear the REMI sensors for an extended period of time (30 minutes to 1 week) and answer online survey questions.
The goal of this study is to characterize an electroencephalogram (EEG) biomarker for fentanyl and understand where this signal is coming from in the brain. The investigators also aim to understand how this EEG biomarker is connected to patient perception to drug liking.
The goal of this study is to develop and validate an approach for accurate targeting and stimulation of brain networks using transcranial magnetic stimulation (TMS) using information from magnetic resonance imaging (MRI) data. This study requires two visits from each participant. In the first visit, the participant will be scanned by MRI scanners to collect data from the brain. Next, the data will be analyzed by the researcher to model the connections between different regions of the brain to determine the stimulation areas related to the so-called frontoparietal network. In the second visit, the participants will take four TMS sessions with different types of stimulations applied to the computed targets and complete a computer-based task named multi-source interference task. Electroencephalogram (EEG) data will be collected during the TMS stimulations and tasks. The main hypothesis is that applying TMS stimulations to the brain targets reduces the response time and response error in the tasks.
The goal of this observational study is to learn how the brain's information processing changes during and following administration of serotonergic psychedelics (psilocybin, N,N-Dimethyltryptamine/DMT, Lystergic Acid Diethylamide/LSD, etc.) for people with and without mental illness receiving serotonergic psychedelics through any clinical trial at Yale University. The main questions it aims to answer are: 1. Do serotonergic psychedelics cause the brain to rely on new information more than previously learned information while under the influence? What about 1 day, 5-14 days, and 4-6 weeks after use? 2. Do serotonergic psychedelics cause long-lasting side-effects in how people perceive (see, hear, feel, etc.) the world and how easily people change their beliefs? 3. How does the brain's electrical activity change after using serotonergic psychedelics? How does the balance between excitation and inhibition change while under their effect? 4. Can changes in how the brain uses information predict who will benefit from a psychedelic and who will have side effects from psychedelics? Researchers will compare with people given placebos to see what changes in brain processing are unique to serotonergic psychedelics. Participants will have the opportunity to do some combination of the following: 1. Online computer assessments consisting of games and questionnaires that probe how participants think. 2. Magnetoencephalography (MEG) or electroencephalography (EEG) with eyes closed and with repeated clicks, images, or sensations delivered. 3. A magnetic resonance imaging (MRI) scan. 4. Semi-structured qualitative interviews about their experience after taking a serotonergic psychedelic recorded via Zoom.
The goal of this study is to test the efficacy of anesthesia-induced dreaming for PTSD in a double-blind, randomized controlled trial in a non-surgical setting (Phase II). The investigators predict that inducing and sustaining a dream state prior to emergence from anesthesia will result in reduced symptoms of PTSD. Half of the participants will be randomly allocated to a Dream Group, while the other half will be in the No-Dream group.
Seizures are common in children (\~350 per 100,000 patients per year) and require immediate medical attention. If the seizure is prolonged (\> 5 minutes) it is called status epilepticus and delayed treatment leads to higher risk in drug resistance and brain injury. The current standard of care for children admitted to the ICU with established or suspected status epilepticus is to start a conventional continuous EEG study that helps diagnosing seizures by typical electro graphic patterns. It takes on average 4 hours to start and another two hours to obtain a reading by epileptologists. This is far beyond the time window of starting an EEG study (60 minutes) as recommended by the neurocritical care society. In adult ICUs, point of care "Rapid Response EEG" are becoming a new standard of care and our ICU adopted this practice in 2020. It can be easily placed by the ICU staff rather than a specifically trained EEG technician but has a lower resolution due to fewer leads (10 vs. 20). The purpose of this study is to determine wether and by how much time RR-EEG yields faster preliminary EEG reports that the previously available conventional EEG (cEEG) and wether the detection of electro graphic seizures is comparable. This is a retrospective cohort study following patients who are admitted to the PICU and are placed on either cEEG or RR-EEG for status epilepticus.
Individuals with Fragile X Syndrome show differences in how they understand and learn language from infancy. They frequently have lifelong delays in speech and language as well. In addition, they experience other auditory symptoms, including being very sensitive to certain sounds as well as being more sensitive than others to loud sounds. The underlying brain activity for sound perception and speech learning in Fragile X is not well understood, especially in the infant and toddler years. This study uses behavioral assessment of speech and language abilities, neuroimaging, and hearing tests to understand how speech and hearing are different in children with Fragile X Syndrome.
Epilepsy, a prevalent neurological disorder, affects 40% of patients with uncontrolled seizures despite medications. Sleep disturbance exacerbates epilepsy, and vice versa, but existing literature suffers from limitations. Studies conducted in hospital settings provide only brief observation periods and fail to capture the natural sleep environment. Wearable technology offers a promising solution, providing a nuanced understanding of the relationship between seizures and sleep. The Dreem headband, an EEG-based wearable, is well-suited for such studies, offering ease of use and validated accuracy. This technology enables extended observation periods under stable medication conditions, essential for assessing the complex interplay between sleep and epilepsy. By elucidating the impact of sleep on seizures, the researchers seek to identify patient populations where sleep significantly influences seizure susceptibility, ultimately informing personalized epilepsy treatments.
The aim of the proposed study is to investigate and comprehensively understand pain perception in patients diagnosed with symptomatic acute pulpitis who are resistant to inferior alveolar nerve block (IANB). The study aims to achieve this by utilizing a dual approach that combines subjective self-reporting of pain intensity using the Numeric Rating Scale (NRS) with objective neurophysiological assessment through brain wave analysis using electroencephalography (EEG). By integrating these two methods, the study seeks to explore potential correlations between self-reported pain scores and neural responses recorded through EEG, providing insights into the pain experience of this specific patient population. Ultimately, the goal of the study is to enhance the understanding of pain perception mechanisms in individuals with symptomatic acute pulpitis resistant to IANB and potentially guide the development of more effective and personalized pain management strategies for these patients.
A double-blind, placebo-controlled, crossover trial to investigate the PPR of approximately 5 subjects with a known stable PPR on EEG, using 2 doses of NPT 2042 compared to placebo.
Observational study at CDI Cleveland Dental Institute. Investigators will assess the pain perception in one group of patients using two non-invasive methods. First, a numerical rate scale (NRS) and second, a brain wave EEG.
Endonasal endoscopic approaches are an established treatment for suprasellar lesions compromising the optic nerves (ON). Surgery often involves dissecting tumors from the optic nerves and its blood supply, which can result in nerve damage and visual loss after surgery. To date, there are no reliable methods to monitor the optic nerve function during surgery and thus, post-surgical visual outcomes is unknown until the patients are fully awake after surgery for a visual exam. This delay in diagnosis prevents early therapeutic measures and can result in further harm to the ON. We have recently recognized that when ICG is routinely injected during these cases to check for patency of the big arteries the sub millimetric superior hypophyseal arteries supplying (SHA) the ON are also visible and that lack of visualization of these vessels is associated with worse visual deficits after surgery. Thus, ICG may be a tool to intraoperative predict visual outcomes after endonasal approach for suprasellar lesions and fill the nondiagnostic gap. This study will assess whether endoscopic ICG angiography before and after resection of suprasellar lesions can predict post-operative visual deficits. Successful completion will provide surgeons a novel tool to assess visual function during surgery. The ICG endoscopic angiograms suggested in this study are noninvasive and currently routinely performed at the end of surgery to check for patency of big brain arteries.
This is a randomized, parallel-group study designed to explore the differences between cannabis intoxication, alcohol intoxication and co-intoxication involving both alcohol and cannabis, utilizing electroencephalography (EEG) as well as more traditional intoxication measures such as breath alcohol concentration and balance metrics. If eligible for the study, participants will be randomized to complete one study session in our mobile laboratory, during which they will use either alcohol, cannabis (which will be self-administered, ad libitum) or both alcohol and cannabis.
In the United States, more than 795,000 people have a stroke every year. Motor impairment after a stroke is common and can be debilitating. To date, there remain few treatments available to help improve motor recovery after a stroke, making this an important area of research. Novel use of neuromodulation such as Invasive Vagus Nerve Stimulation (VNS) has been shown to improve motor recovery in stroke patients. Vagus nerve stimulation (VNS), in which the nerve is stimulated with electrical pulses, has demonstrated success for a variety of conditions, including inflammation, depression, cognitive dysfunction, chronic fatigue, headaches/migraines, pain, insomnia, and cardiovascular issues. Very recently, non-invasive options have been developed and might be a promising alternative. The research in this area is still very limited and much more research is needed to investigate non-invasive/trancutaneous auricular vagus nerve stimulation (taVNS) related biomechanisms and to further support its efficacy in acute patients. The purpose of this study is to build upon the current research to investigate changes in electrical brain activity (using electrophysiology) related to improvements in both motor and cognitive recovery following the use of taVNS in acute stroke patients.
This study will compare the tolerability and efficacy of conventional formula Exclusive Enteral Nutrition (EEN) and whole-food blended smoothie EEN by enrolling a total of 60 participants with newly diagnosed pediatric Crohn's disease (CD). Participants will be provided either commercial formula or guided on the preparation of the home-blended smoothie. These participants will be given a specific recipe, blender, and be provided the food components to the smoothie. The study will total 8 weeks and will assess tolerance, clinical outcomes, stool microbiome, and quality of life.
This project examines, in chronic pain, the mechanisms of immersive virtual reality compared to the mechanisms of placebo hypoalgesia. The potential of developing new non-pharmacological premises for low-risk interventions for pain management is high.
This is an open-label safety pilot study of the Electroencephalogram (EEG) Transcranial Magnetic Stimulation (eTMS) treatment for Post-Traumatic Stress Disorder (PTSD). The recruitment goal is 30 participants who are United States Military veterans or first responders (e.g., firefighters, police, paramedics, etc.). The Study includes an EEG recording in order to determine the optimal treatment parameters for the eTMS system, followed by 10 in-office visits that take place over 21 total days. Two eTMS treatment sessions are administered during each office visit.
The goal of this clinical trial is to test Epitel's™ Remote EEG Monitoring System's (REMI™) ability to record electroencephalography (EEG) of seizure events in an ambulatory setting for extended periods (14 - 28 days) in patients presenting with questionable seizure characterization. The main questions it aims to answer are: • Can more seizure events be recorded in fourteen (14) days than can be recorded in three (3) days? • Do treating clinicians find clinical value in extended fourteen (14) - twenty-eight (28) days of EEG? Participants will wear a portable EEG device (REMI) for fourteen (14) to twenty-eight (28) days in their home/community setting.
Chronic low back pain (CLBP) is a pervasive disorder affecting up to one-fifth of adults globally and is the single greatest cause of disability worldwide. Despite the high prevalence and detrimental impact of CLBP, its treatments and mechanisms remain largely unclear. Biomarkers that predict symptom progression in CLBP support precision-based treatments and ultimately aid in reducing suffering. Longitudinal brain-based resting-state neuroimaging of patients with CLBP has revealed neural networks that predict pain chronification and its symptom progression. Although early findings suggest that measurements of brain networks can lead to the development of prognostic biomarkers, the predictive ability of these models is strongest for short-term follow-up. Measurements of different neural systems may provide additional benefits with better predictive power. Emotional and cognitive dysfunction is common in CLBP, occurring at the behavioral and cerebral level, presenting a unique opportunity to detect prognostic brain-based biomarkers. Likewise, improvements in electroencephalogram (EEG) neuroimaging strategies have led to increased spatial resolution, enabling researchers to overcome the limitations of classically used neuroimaging modalities (e.g., magnetic resonance imaging \[MRI\] and functional MRI), such as high cost and limited accessibility. Using longitudinal EEG, this patient-oriented research project will provide a comprehensive neural picture of emotional, cognitive, and resting-state networks in patients with CLBP, which will aid in predicting symptom progression in CLBP. Through this award, the investigators will use modern EEG source analysis strategies to track biomarkers at baseline and 1- and 2-month follow-ups and their covariance with markers for pain and emotional and cognitive dysfunction. A 5-month follow up will also be used to only assess patient reported outcomes. In Aim 1, the investigators will identify and characterize differences in resting-state, emotional, and cognitive networks between patients with CLPB and age/sex-matched controls. In Aim 2, the investigators will identify within-subject changes across time and their relationship with clinical symptoms. In Aim 3, as an exploratory aim, the investigators will apply machine- and deep-learning strategies to detect a comprehensive signature of CLBP using EEG features from resting-state, emotional, and cognitive networks.
Individuals with Fragile X Syndrome show differences in how they understand and learn language from infancy. They frequently have lifelong delays in speech and language as well. In addition, they experience other auditory symptoms, including being very sensitive to certain sounds as well as being more sensitive than others to loud sounds. The underlying brain activity for sound perception and speech learning in Fragile X is not well understood, especially in the infant, toddler, and preschool years. This study uses behavioral assessment of speech and language abilities, neuroimaging, and hearing tests to understand how speech and hearing are different in children with Fragile X Syndrome.
Concurrent electroencephalography (EEG) and new tripolar EEG (tEEG) will be recorded from adult and pediatric patients. In some patients stereo EEG (sEEG) will also be recorded concurrently.
The project is a randomized, two-arm trial assessing the immediate impact of upper and lower cervical chiropractic adjustments on brain and heart patterns. Thirty individuals (15 per arm) will be recruited from the general population to participate in the study. Qualified participants will undergo a chiropractic physical exam, assessing for cervical subluxations, and a health history review with a Georgia licensed chiropractor. Individuals will be randomized to either an adjustment group or sham group. The adjustment group will receive an upper and lower cervical adjustment with an instrument designed to provide a gentle, targeted adjustment. The sham group will receive a touch sham at similar cervical locations with the same instrument. Both groups will have a 1-hour recording session with an EEG and ECG set-up plus a series of baseline recordings, interventions, and post recordings.