70 Clinical Trials for Various Conditions
The long-term objective of this project is to characterize how psilocybin affects visual perception and the brain's representation of the visual environment. It is known that psilocybin alters aspects of visual perception, but the underlying brain mechanisms contributing to these effects are poorly understood. The proposed work will address these questions in a large, diverse sample of healthy human subjects by using functional magnetic resonance imaging (fMRI) to measure the brain's responses to visual stimuli. The proposed research will document which brain areas mediate the effects of psilocybin. The technique of fMRI will be employed to measure brain activity in different brain areas while subjects are performing a visual perceptual task.
The investigators plan to examine the relation of perceptual variables-basic vision, unusual perceptual experiences(including but not limited to visual hallucinations)-to relevant functional variables such as cognition, mood, and alertness/sleepiness in an online sample of persons with Parkinson's disease (PwPD). It is hypothesized that unusual perceptual experiences will relate significantly to the selected variables. Participants do not need to experience visual hallucinations to be able to participate in this study. This is an observational study only, and not an interventional study.
The purpose of the Taste Perception Study is to assess variations in the ability to taste and perceive sensations from various stimuli in younger (18-49 years) and older (50-85 years) volunteers. The study's goal is to determine how these sensations influence what one likes to eat, and what one chooses to eat, and whether there is an association with dietary intake, body composition and chronic disease. Another objective of the study is to determine the association between variations in oral sensations and genes mediating sensory perception and dietary behaviours.
Background: Alcohol use disorder (AUD) is the most common substance use disorder in the world. Long-term AUD can affect a person s sense of taste and smell. This natural history study will compare alcohol drinking behaviors and measures of taste and smell in people with and without AUD. Objective: To understand how alcohol use changes the senses of taste and smell. Eligibility: People aged 18 to 65 years with or without AUD. Design: Participants will be screened. They will have several tests to assess their smell and taste functions. They will answer questions about their eating, alcohol use, and smoking or vaping habits. Participants will have 2 study visits. They will give samples of blood, nasal mucous, saliva, stool, and urine. Their bodies will be measured. They will undergo a type of scan that uses X-rays to measure their body composition. They will complete taste measurements. They will taste liquids by swishing them in their mouth, without swallowing. Then, they will be asked what they can detect and which flavors they preferred. They will also complete smell measurements. They will be asked if they can identify strong odors on a metal wand. They will be asked to rate the intensity and pleasantness of odors. Their brain activity in the frontal regions will be measured while they smell various odors. For this, we will use a brain imaging tool called functional near infrared spectroscopy. They will have sensory testing. Sensations such as pressure, pinpricks, heat, or vibrations will be applied to their skin. Then, they will be asked what they felt. They will keep diaries. They will write down what they eat (for 3 days), the alcohol they drink (3 days), and how much they sleep (14 days). They will wear a wristwatch-like device that records their activity for 14 days.
The TIPS Study, or Treatment and Illness Perceptions Survey, is a study funded by the national Alzheimer's Association to learn more about differences between African Americans' and Whites' attitudes, beliefs, and experiences related to Alzheimer's disease (AD). The study involves a one-time 30-minute telephone survey in which participants are asked about a range of topics related to AD, including their personal experiences, their beliefs about the disease's symptoms and risk factors, and their attitude toward possible future treatment options. Information from the survey will be used to develop more culturally sensitive health education and healthcare services for persons with AD.
The investigators are examining how aspects of daily function are perceived in persons with PD and in those who interact with them on a regular basis. If eligible, participants will receive a set of online questionnaires by email. The questionnaires will take about 1 hour to complete, and can be done at the participant's convenience. The investigators are looking for volunteers who have a diagnosis of Parkinson's disease without dementia (age 40 or older and proficient English speakers). If a spouse, family member, significant other or other close associate is available (age 18 or older, proficient English speakers), the investigators will send them questionnaires as well. There is no monetary or other compensation for this study. For more information, please contact the Vision and Cognition Laboratory at vcognition@gmail.com or 617-358-1377.
To evaluate the performance of the Nucleus 5 Cochlear Implant System.
The objectives of this study are: 1. to determine the degree of understanding and perceived risks for human papillomavirus (HPV) disease, to examine and assess attitudes for personal use of HPV vaccine and identify potential barriers to HPV vaccine access and utilization in a population of young men who have sex with men (MSM) (under 26 years of age)and in parents of boys aged 9 to 18 years 2. to determine HPV vaccine acceptance and predictors of acceptance in a population of young MSM and in patients of boys ages 9 to 18 years 3. to develop strategies to overcome potential barriers to vaccination and improve vaccine access and utilization via development of targeted educational initiatives.
Background: As of 2021, almost 45 million people in the United States were foreign-born immigrants. South Asians, including people from Bhutan, are the fastest-growing immigrant subgroup in the US. Their income and education levels are higher than the US average. Yet they have worse physical and mental health outcomes than their White US-born counterparts. These risks include type 2 diabetes and obesity. Objective: This natural history study will explore how life experiences and environmental factors affect heart health and metabolism among Bhutanese people living in the US. Eligibility: Adults aged 18 years or older who identify as Bhutanese and live in the US. Design: Participants will be recruited and screened by the Bhutanese Community of Central Ohio (BCCO). They will have 1 visit to the BCCO s Arogya Clinic in Reynoldsburg. The visit will last 2 hours. Participants will take a survey; they may use either English or Nepali. They will answer questions about their background; their experiences living in the US; and how their customs and habits might have changed. They will also be asked about their experiences with discrimination; their mental health and well-being; their community; quality of life; and overall physical health. The survey will take 60 minutes. Participants will also speak with a researcher. They will be asked how they feel about providing biological samples; these may include saliva, blood, and urine. Their answers will be audio recorded.
The goal of this clinical trial is to determine whether perceptual training enhances speech perception and production outcomes in children with Residual Speech Sound Disorders (RSSD). The main questions it aims to answer are: Does pre-treatment speech production accuracy predict treatment response? Does perceptual acuity influence the effectiveness of perception-first versus production-first interventions? Researchers will compare TAU+Perception-first and TAU-first treatment conditions to see if the order of intervention affects speech improvement outcomes, particularly based on participants' initial perception and production accuracy. Participants will: Complete pre-treatment evaluations to assess /r/ production and speech perception. Be grouped into high or low production and perception accuracy categories based on established thresholds. Be randomly assigned (using a blocked randomization procedure) to one of two treatment arms via telepractice. Participate in the assigned treatment condition designed to target speech sound accuracy. Randomization is stratified to ensure treatment groups are balanced based on pre-treatment severity in both the perception and production domains.
This study aims to identify novel markers of psychosis using electroencephalography (EEG).
The goal of this observational and interventional study is to understand how therapeutic deep brain stimulation (DBS) affects attention, perception and cognition in participants with Parkinson's disease (PD) and essential tremor (ET). The main questions it aims to answer are: * Does impaired control of attention and eye movement in PD alter how social cues are perceived and interpreted? * Does therapeutic DBS improve or worsen attentional and perceptual deficits for social cues in PD and ET? * Can DBS be optimized to restore normal attentional control in PD while remaining an effective therapy for other aspects of the disorder. * What do parts of the brain targeted by DBS contribute to the control of attention? Using an eye tracking camera, investigators will study how participants with PD and ET look at and perceive facial expressions of emotion before and after starting DBS therapy, in comparison to a group of healthy participants without ET, PD or DBS. Participants with PD and ET will see and rate morphed facial expressions on a computer screen in three conditions: * Before starting DBS therapy (over approximately 1 hour). * In the operating room, during the standard procedure to implant DBS electrodes, while the participant is awake (for no more than 15 minutes). * After starting DBS therapy, with brief experimental changes of DBS stimulation level and frequency (over approximately 1 hour).
The purpose of this survey is to collect information for scientific research and to better understand the role of systemic inflammation in identification, treatment and management of patients with Atherosclerotic Cardiovascular Disease (ASCVD) and Chronic Kidney Disease (CKD)
Using a randomized controlled trial design, the investigators will examine the effects of music engagement through choir training on the hearing, communication, and psychosocial well-being of older adults, particularly those at heightened risk of developing dementia.
The goal of this study is to identify which brain regions are active during speech-in-noise perception, as well as how those regions interact. The investigators are studying brain activation during speech-in-noise in autism and controls as well as individuals with Fragile X Syndrome. The main question\[s\] it aims to answer are: 1) How does the brain's response to background noise affect a person's ability to understand speech? 2) Can visual cues improve hearing in background noise? Participants will complete the following: * hearing tests * cognitive and behavioral measures * questionnaires about their symptoms * both passive and active hearing tasks while brain activity is recorded with a neuroimaging cap Results will be compared between individuals with autism with and without Fragile X Syndrome as well as individuals without autism.
The goal of this exploratory, mixed-method design study is to gather qualitative and quantitative data obtained through interviews and questionnaires with veterans who are currently enrolled at the VA for healthcare. The main question this study aims to answer is: How do veterans diagnosed with PTSD and enrolled for care at the VA understand MDMA-assisted therapy for PTSD? Using a story-completion approach, participants will be provided with a brief story starter involving a fictitious character and scenario and asking them to complete the story. Few contextual details will be offered about the character. In responding to ambiguous cues, participants are thought to project their conscious and subconscious perceptions about the phenomenon in question onto the story, a useful method for exploring stigmatized topics. The purpose of this exercise is to ascertain the participants attitudes and perceptions regarding MDMA-Assisted Therapy.
This study was a retrospective, non-interventional, cross-sectional, multi-cohort study of patients clinically diagnosed with RMS (RRMS and SPMS). Patients were classified according to the immediate previous treatment in two groups, those who were prescribed with high efficacy treatments (HETs) and those who were prescribed with non-high efficacy treatments (non-HETs). HET include alemtuzumab, ofatumumab, ocrelizumab, natalizumab, cladribine, fingolimod and ozanimod; and non-HETs include molecules classified as with moderate or modest efficacy such as: interferons, glatiramer acetate, dimethyl fumarate and teriflunomide.
This study involves an anonymous survey given to parents regarding their perceptions on prescription opioid use for pain control in children undergoing orthopedic surgery.
This study will enroll patients with epilepsy who are being evaluated for epilepsy surgery and have intracranial EEG electrodes. In this study, the aim is to record brain signals from areas important in social and emotional processing and to understand how electrical brain stimulation - called neuromodulation - affects such processing. Patients enrolled in this study will be asked to view images depicting a variety of emotionally positive, negative, or neutral themes. As the patient views these images, a small amount of imperceptible and painless electric current will be used to map function of certain parts of a human brain. The overarching goal of the study is to determine if neuromodulation can be used in certain areas of the brain to treat cognitive disorders such as memory loss and post-traumatic stress disorder.
This study seeks to compare how patients rank perception of anxiety, modesty, dignity and overall satisfaction when patients are provided with either a standard patient gown or a standard patient gown plus a pair of specialized surgical undergarments (COVR Medical) for orthopedic surgical procedures.
The investigators aim to perform a qualitative study exploring attitudes and perceived barriers to Long Acting Reversible Contraception (LARC), both implants and IUDs, among adolescent and young adults (AYA) with chronic illness at CHLA. While the literature examining barriers to LARC uptake is growing, its focus has been on older women and women who are not living with chronic illness. There remains a significant gap in the understanding of: 1. What adolescents and young adults from ethnically diverse, economically underserved communities know about LARCs 2. If and how LARCs fit into their considerations and decision making about contraception choices 3. Perceived barriers to LARC among AYA with chronic medical conditions 4. Information, perceptions, experiences that inform choices that may be unique to AYA living with chronic conditions Research Objectives 1. Explore the impact of the experience of living with chronic medical conditions on AYA patient attitudes toward and acceptance of LARCs 2. Identify AYA patient concerns and perceptions related to historical coercion and reproductive injustice experienced by minority communities that may reduce acceptance of LARC 3. Explore the relationship between patients' perception of pediatric subspecialty care providers' attitudes regarding sexual health and contraception guidance and patients' attitudes toward and acceptance of LARC 4. Identify factors related to patient's age, family's values, and medical condition, as well as historical events or legacies that may impact preference of implant vs intra-uterine device (IUD), independent of safety/medical contraindications, if choosing a LARC method. 5. Explore other social, cultural or psychological factors that influence perception and represent barriers to LARC access Hypotheses 1. The impact of chronic illness on AYA sense of bodily autonomy (including self-concept, history of other medical procedures, and concerns around mortality) reduces the attractiveness of LARC methods. 2. The intersectionality of multiple oppressions, including racism, xenophobia, sexism, and historical reproductive coercion and injustice implicitly reduce the attractiveness of LARC methods for AYA patients from minority communities with chronic medical conditions at CHLA. 3. Pediatric subspecialty providers' attitudes about sex, and comfort with providing patient-centered contraception counseling, as perceived by AYA patients, impact AYA patient attitudes towards and acceptance of LARC. 4. Preference of implant vs. IUD is related to patient's age, family values, and type of medical condition, as well as their knowledge of historical events related to contraception in their community, independent of safety/medical contraindications. 5. Additional perceived barriers, including fear or skepticism about LARC conferred by trusted sources of information such as family or social media, reduce the attractiveness and acceptance of LARC by AYA with chronic medical conditions
This broad aim of this clinical study is to assess the hypothesis that morphological and phonological deficits are linked by a broader deficit in sequential pattern learning. This hypothesis applies to learning in general, but is especially critical as an avenue for developing earlier assessments and more powerful interventions for children with developmental language disorder (DLD; AKA specific language impairment). Other populations, such as at-risk toddlers, may also benefit from this new approach.
This broad aim of this clinical study is to assess the hypothesis that morphological and phonological deficits are linked by a broader deficit in sequential pattern learning. This hypothesis applies to learning in general, but is especially critical as an avenue for developing earlier assessments and more powerful interventions for children with developmental language disorder (DLD; AKA specific language impairment). Other populations, such as at-risk toddlers, may also benefit from this new approach.
Smarty Ears has developed a prototype of an innovative therapeutic training system to improve speech perception in noise by training children on interrupted noise (which has silent intervals that allow for fragments of the target to be heard). The study will attempt to validate the technology and gather initial design feedback from clinicians and caregivers and from children with ASD and HL.
Chronic kidney disease (CKD) causes symptoms and potential loss of independence. These effects are increased as the disease progress to endstage renal disease (ESRD), particularly when external intervention (i.e. dialysis) is used to keep these individuals alive. The combined effect of ESRD and its treatment has a significant impact on an individual's life, potentially causing reduced employment time, reduced social time and increased anxiety/stress. The purpose of this study is to investigate the impact that CKD/ESRD have on an individual's life. Specifically, this study is focused on giving an insight into the psychosocial impact that CKD/ESRD and different forms of renal replacement therapy have upon these individuals.
The primary aims of the study are to assess the user experience and initial efficacy of a mobile application designed to reduce problematic alcohol use. The application utilizes drinking limits, defined by the user, to pace alcohol consumption during drinking occasions. The mobile application will be compared to strategies for tracking drinking detailed within the National Institute on Alcohol Abuse and Alcoholism Alcohol Moderation Strategies (https://www.rethinkingdrinking.niaaa.nih.gov/thinking-about-a-change/strategies-for-cutting-down/tips-to-try.aspx). Primary outcome variables, in addition to variables assessing user design experience of the application and use of moderation strategies, include (1) negative consequences of alcohol use during a 14 day observation period, and (2) number of drinks consumed per drinking day during a 14 day observation period.
The purpose this study is to measure sensitivity to visual and vestibular or balance motion. It is hoped that the results may help researchers better understand how aging and disease affect motion perception.
Patient perception of pain on periodontal probing using a controlled-force, electronic probe was not significantly affected by the use of a modified (ball-end) probe tip design except for in the maxilla, where a standard straight probe tip appeared to be more comfortable for patients.
The purpose of this study is to compare pain control during vulvar biopsy following either (1) application of EMLA (a eutectic mixture of local anesthetics lidocaine 2.5% and prilocaine 2.5%) cream or (2) injection of 1% lidocaine. We hypothesize that lidocaine will provide better biopsy analgesia, but the benefit will be offset by the pain of lidocaine injection compared to EMLA application, thus there will not be a significant difference in highest pain scores between the two groups.
The intent of this mixed methods study for transgender women after gender confirmation surgery is to characterize and subsequently create a validated screening questionnaire for postoperative urologic and pelvic floor symptoms. For individuals who seek gender-confirming treatment, about 13% undergo genital surgery for cosmetic purposes with or without gonadectomy, and this number is increasing. Patient satisfaction following surgery is high, particularly regarding sexual and cosmetic outcomes; however, unexpected negative functional outcomes such as bowel and bladder dysfunction and pelvic organ prolapse impact overall patient satisfaction. The available information suggests that 16-33% of patients experience incontinence postoperatively, with stress predominance, 32-47% experience abnormal voiding, and 24-66% experience overactive bladder symptoms. Outside of the typically assessed voiding symptoms, unique complaints of MTF postoperative patients include obstructive voiding symptoms due to urethral stenosis, persistent perimeatal erectile tissue, prostatic hypertrophy, and irritation from neovaginal tissue. Additionally, may of these patients develop symptomatic neovaginal prolapse, requiring re-suspension. We suggest that further clarification regarding MTF postoperative urologic and pelvic floor complaints can be achieved via a mixed methods approach. By using focus group interviews to create specific evaluative questions for this unique population, we can then prospectively assess patients undergoing surgery via a national multicenter sampling strategy. The goal of the study is to better understand the unique symptoms these women experience and create a validated, reliable screening questionnaire to monitor patients after surgery.