Clinical trials: Individual Differences
Obesity
Individual Differences in Children's Susceptibility to Overeating
The portion size of foods has been identified as an important determinant of energy intake in children. It remains to be determined to what extent child weight status and the relative reinforcing value of food may interact with…
- Trial name
- NCT01905293
- Testing
- Feeding Study
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University of Pennsylvania
Colour Perception, Color Perception
Visual Perception, Binocular Rivalry, and Fatigue-Related Individual Differences in Colour and Illumination Judgement
This observational study aims to characterise individual differences in colour perception and binocular rivalry. Participants will complete computer-based visual perception tasks, including a colour perception task and a…
- Conditions
- Colour Perception, Color Perception, Binocular Rivalry
- Trial name
- NCT07671144
- Testing
- Computer-Based Visual Perception Tasks
- Where
- 2 sites in Hong Kong
- Volunteers
- 128 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Autistic Spectrum Disorders
A Pilot Trial of a Developmental, Individual-Difference, Relationship-Bases (DIR)/Floortime for Children With Autistic Spectrum Disorders
Thirty two children age 2-6 years are recruited into the study and the randomization will be stratified for chronological age and symptom severity into 2 main groups, intervention and control.
- Trial name
- DIR (NCT00954083)
- Testing
- DIR/Floortime, Routine care
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Mahidol University
Bacterial Growth
Recolonisation of Bacteria in Hands and Possible Bacterial Leakage From Glove Cuff in Cardiac Surgery
This study aims to investigate if recolonisation of the hand flora occur after surgical hand washing and is there a bacterial leakage at the glove cuff site in cardiac surgery? Also investigate if thera are differences in…
- Trial name
- NCT02359708
- Testing
- Surgical hand disinfection.
- Where
- Sweden
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- Örebro University, Sweden
Shift Work Schedule, Sleep Deprivation
Quick Returns - Sleep, Cognitive Functions and Individual Differences
The project will contribute with new knowledge concerning how short rest periods between two consecutive shifts (<11h, often defined as a Quick Return (QR)) affects sleep and cognitive performance.
- Trial name
- NCT05162105
- Testing
- Short rest (8 hour) between two consecutive shifts., 16 hour rest opportunity between to consecutive shifts.
- Where
- Norway
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- University of Bergen
Sleep, Diabetes
Individual Differences in Diabetes Risk: Role of Slow WaveSleep
This study will examine the relationship between the amount of slow wave sleep (deep sleep) and the ability of the body to bring the blood sugar level to a normal range after receiving glucose.
- Trial name
- NCT00989378
- Testing
- baseline study
- Where
- United States
- Volunteers
- 5 people, healthy volunteers welcome
- Sponsor
- University of Chicago
Obesity, Sedentary
Consistency in Individual Differences in Energy Intake Following Acute Exercise
The importance of exercise for weight control is well documented; however if exercise results in an increase in food intake, the beneficial effect of exercise may not be seen.
- Trial name
- NCT01645956
- Where
- United States
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- The Miriam Hospital
Malignant Tumor
Establishment of Tongue Image Database and Machine Learning Model for Malignant Tumors Diagnosis
The tongue images of malignant tumors and corresponding healthy people will be collected to establish the tongue image database.
- Trial name
- NCT04793672
- Testing
- Tongue images, coating on the tongue and clinical data of patients with malignant tumors and healthy people will be collected.
- Where
- 2 sites in China
- Volunteers
- 4,100 people, healthy volunteers welcome
- Sponsor
- Zhejiang Cancer Hospital
Healthy, Controlled Feeding Trial
Gut Microbial Metabolites of Apple Polyphenols
The goal of this controlled feeding trial is to learn about the metabolism of polyphenols, a common class of compounds found in plant-based foods, by the gut microbiome.
- Trial name
- GutMMAP (NCT06107192)
- Testing
- Dietary intervention - apple catechin diet, Dietary intervention - low catechin diet
- Where
- United States
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- University of Maryland, College Park
Eye Movements, Attention
An Investigation of Attentional and Inhibitory Processes During Active Visual Search in Humans
The goal of this study is to investigate the finding that there are large individual differences in how participants move their eyes during active visual search.
- Conditions
- Eye Movements, Attention, Executive Function
- Trial name
- NCT06587113
- Testing
- Contour Search Task, Stop signal Task, Useful field of View
- Where
- United States
- Volunteers
- 225 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
Diabetes Mellitus, Type II, Overweight or Obesity
Differences in Postprandial Glucose Changes
Following a meal, in nondiabetic individuals, blood glucose rises to peak at 1hr and returns to baseline in 2 - 3 hours. In T2DM, this peak is higher and prolonged.
- Trial name
- NCT05957224
- Testing
- Shake 1 then Shake 2, Shake 2 then Shake 1
- Volunteers
- 25 people
- Sponsor
- The University of The West Indies
21-hydroxylase Deficiency
Examining Genetic Differences Among People With 21-Hydroxylase Deficiency
Congenital adrenal hyperplasia (CAH) is a genetic disorder that affects the amount of steroids that the body forms. The most common form of CAH is 21-hydroxylase deficiency (21OHD), which leads to cortisol deficiency.
- Trial name
- NCT00542841
- Testing
- Hydrocortisone withdrawal
- Where
- 3 sites in United States, Brazil
- Volunteers
- 99 people
- Sponsor
- Maria I. New
Diet
Microbiome Individuality and Stability Over Time
Microbial derived uremic solutes (p-cresol sulfate, indoxyl sulfate, and phenylacetylglutamine) are present in blood and excreted into the urine.
- Trial name
- MISO (NCT04740684)
- Testing
- Standardized diet
- Where
- United States
- Volunteers
- 21 people, healthy volunteers welcome
- Sponsor
- Stanford University
Individual Difference, Food Sensitivity
Investigation of the Perception of Protein Fortified Foods and Beverages
This study aims to investigate whether protein fortification of foods and beverages causes mouthdrying and mucoadhesion and whether this is influenced by age and saliva flow.
- Conditions
- Individual Difference, Food Sensitivity, Food Preferences
- Trial name
- NCT03798730
- Testing
- Solid Model, Liquid Model
- Where
- United Kingdom
- Volunteers
- 84 people, healthy volunteers welcome
- Sponsor
- University of Reading
Surgery, Individuality
Association of CYP3A4 rs2242480 With Sufentanil Plasma Concentration and PCA Consumption
This study was designed for exploring the association of cytochrome P450 3A4 rs2242480 polymorphism with metabolism of sufentanil in Chinese patients receiving upper abdominal surgery，to provide evidence for genetic prediction of…
- Trial name
- NCT02070614
- Where
- China
- Volunteers
- 72 people
- Sponsor
- Xianwei Zhang
Sitting Position, Overexertion From Maintaining Prolonged Standing Position
Effects of Standing Desks and Intermittent Walking on Cognitive Fatigue
The objective of this randomized-controlled crossover design was to identify inter-individual responses to the use of sitting desks, standing desks and two minutes of walking after twenty-eight minutes of sitting on the…
- Conditions
- Sitting Position, Overexertion From Maintaining Prolonged Standing Position, Walking
- Trial name
- NCT07576413
- Testing
- Performance of cognitive tasks
- Where
- United States
- Volunteers
- 31 people, healthy volunteers welcome
- Sponsor
- Clarkson University
Appetitive Behavior, Individual Difference
The Influence of Fat Perception on Satiety From Consumption of Reduced Fat Snacks
The present study aims to investigate the effect of fat level and fat type of a snack on self-reported satiety and associated biomarkers. The relevant individual differences will also be investigated.
- Conditions
- Appetitive Behavior, Individual Difference, Food Sensitivity, Food Preferences
- Trial name
- NCT03585920
- Testing
- Expanded Corn Snack
- Where
- United Kingdom
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of Reading
Surgery, Individuality
The Realtime Detection for Individual Variation of Analgesic ：A Comparison of Sufentanil vs Fentanyl
Purpose: This study aimed to find a quick and timely way to investigate the individual variation of efficacy of opioid analgesic in Chinese patients undergoing elective surgeries.
- Trial name
- NCT01748071
- Where
- China
- Volunteers
- 120 people
- Sponsor
- Huazhong University of Science and Technology
Binge Drinking
Afferent Neurocardiac Signals, Cue Reactivity, and Cognitive Control
Conscious attempts to regulate alcohol use are often undermined by automatic attention and arousal processes activated by alcohol cues, as well as by diminished ability to inhibit in-the-moment behaviors.
- Trial name
- NCT05369169
- Testing
- Resonance breathing, Low demand cognitive task
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Rutgers, The State University of New Jersey
Non-Tuberculous Mycobacteria Pulmonary Disease, Bronchiectasis
Health Impact of Non-Tuberculous Mycobacteria Pulmonary Disease (NTM-PD)
Nontuberculous mycobacteria (NTM) are environmental organisms found in soil and water. The majority do not cause human disease. When they do, this is mostly as a chronic lung infection in people with long-term lung problems such…
- Trial name
- NCT07192705
- Where
- United Kingdom
- Volunteers
- 80 people
- Sponsor
- University College, London