Clinical trials: Concentration
Sleep Apnea, Obstructive
Divided Attention Steering Simulator Alertness Test
Driving simulator programmes are used under a wide range of conditions, and a correlation of driving performance and real accident risks in patients with obstructive sleep apnoea syndrome(OSAS)could be shown.
- Trial name
- DASS (NCT01460173)
- Testing
- Divided Attention Steering Simulator (DASS)
- Where
- Germany
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Institut für Pneumologie Hagen Ambrock eV
Cognitive Fatigue, Mental Fatigue
Effects of Natural Sounds on Attention Restoration in Virtual Reality
This study aims to examine whether listening to natural sounds in a noisy virtual reality environment compared to no natural sounds influences physiological markers.
- Conditions
- Cognitive Fatigue, Mental Fatigue, Behavioral Performance, Heart Rate Variability
- Trial name
- VEARS (NCT05679869)
- Testing
- Masking Sound, No masking sound
- Where
- Singapore
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Nanyang Technological University
Women's Health
Resistance Training and Sex Hormone Concentrations During the Menstrual Cycle
Although there are numerous studies showing effects of aerobic training on sex hormone concentrations, research analyzing the fluctuation of sex hormones in response to resistance training (RT) is lacking.
- Trial name
- NCT04163380
- Testing
- Resistance Training
- Where
- United States
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Southern Illinois University Edwardsville
Infertility, Female
Impact of Serum Progesterone in Modified Natural Cycles and Stimulated Cycles on Ongoing Pregnancy Rate
Prospective cohort unicentric study including infertile patients undergoing an embryo transfer in the context of natural or stimulated cycles and receiving luteal phase support with vaginal natural progesterone following the…
- Trial name
- CORPUS-LUTEUM (NCT04259996)
- Testing
- PROGESTERONE AND ESTRADIOL SERUM CONCENTRATION MEASUREMENT
- Where
- Spain
- Volunteers
- 488 people, healthy volunteers welcome
- Sponsor
- Instituto Valenciano de Infertilidad, IVI VALENCIA
Fertility
The Influence of Different Concentrations of Glucose in Culture Media on Fertilization and Embryo Quality
The aim of this study is to examine whether incubation of human oocytes until pronuclear stage, in different culture media containing high and low concentrations of glucose affect fertilization differently, not only in standard…
- Trial name
- NCT00606073
- Testing
- Universal IVF Medium + ISM1 Medium
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Hillel Yaffe Medical Center
Attention, Electroencephalography
Shaolin Dan Tian Breathing Fosters Relaxed and Attentive Mind
The present study aimed to utilize these well-known neuroelectrophysiological techniques to investigate the relatively less studied Shaolin Dan Tian Breathing (DTB) technique.
- Trial name
- NCT00988702
- Testing
- Dan Tian Breathing, Progressive muscle training
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Circadian, Exercise
Diagnostic Relevance of Salivary Testosterone Concentrations in Doping Control.
It is generally accepted that chemical testing of biologic fluids is the most objective means of diagnosis of drug use. In recent years saliva has attracted much attention.
- Conditions
- Circadian, Exercise, Testosterone
- Trial name
- NCT02134470
- Testing
- Testosterone supplementation
- Where
- Germany
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Paracelsus Medical University
Attention Deficit Hyperactivity Disorder
A Dose-Response Study of the Cognitive and Physiological Effects of tDCS to the DLPFC
To determine the cognitive and neurophysiological dose-response relationships of anodal tDCS to the left DLPFC as a function of absolute current intensity, individualized E-field intensity, and stimulation duration.
- Trial name
- NCT04175041
- Testing
- Transcranial Direct Current Stimulation
- Where
- United States
- Volunteers
- 104 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
Down Syndrome, ADHD
Evaluating Treatment of ADHD in Children With Down Syndrome
Children with Down syndrome (DS) have a 3-5 time greater prevalence of Attention Deficit Hyperactivity Disorder (ADHD) than typically developing (TD) children.
- Trial name
- TEAM-DS (NCT04219280)
- Testing
- Quillivant XR
- Where
- 4 sites in United States
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- Children's Hospital Medical Center, Cincinnati
Altitude Hypoxia, Perfusion; Complications
The Pre-acclimatization Augmented Extreme Altitude Expedition
The aim of this study is to investigate the effect of pre-acclimatization in a nitrogen tent at home, ventilated with a slightly increased nitrogen percentage, in preparation for an expedition at extreme altitude.
- Trial name
- PRAGMAX (NCT05517044)
- Testing
- Nitrogen tent preacclimatization to high altitude
- Where
- Switzerland
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Zurich
Major Depressive Disorder, Suicide
Pain, Reward, Attention and Neurocircuitry: Biomarkers of Suicidality
The ultimate aim of this study is to identify a biomarker of suicide risk in MDD by measuring the "hedonic spectrum" (pain and reward responsivity), attention and its associated brain structures using brain scans (fMRI and DTI)…
- Conditions
- Major Depressive Disorder, Suicide, Suicidal Ideation
- Trial name
- NCT02811198
- Testing
- No intervention
- Where
- Canada
- Volunteers
- 97 people, healthy volunteers welcome
- Sponsor
- Unity Health Toronto
Infertility, Male, IVF
BPA Levels Relationship With IVF/ICSI Outcomes in Patients With Male Factor
Association between blood and semen BPA levels and ICSI outcomes in patients with male factor
- Trial name
- NCT05224284
- Testing
- BPA levels
- Where
- Turkey (Türkiye)
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Sanliurfa Mehmet Akif Inan Education and Research Hospital
Diaphragm Paralysis
The Effect of Interscalene Peripheral Nerve Block With 0.25% Bupivacaine vs 0.125% Bupivacaine on Lung Function
Peripheral nerve blocks are used to provide post-operative pain relief. Nerve blocks in the neck, in the interscalene area, provide pain relief after shoulder surgery but can cause temporary weakness or paralysis of the…
- Trial name
- NCT01429584
- Testing
- interscalene nerve block with 0.25% bupivacaine, interscalene block with 0.125% bupivacaine
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Utah
Sport Injury, Attention-deficit/Hyperactivity Disorder
Effects of Subconcussive Head Impacts on Neural Integrity and Function in ADHD
The purpose of this study is to examine the acute neural responses to subconcussive head impacts in individuals with Attention-deficit/hyperactivity disorder (ADHD).
- Trial name
- NCT04880304
- Testing
- Soccer Heading
- Where
- United States
- Volunteers
- 69 people, healthy volunteers welcome
- Sponsor
- Indiana University
Infertility
Evaluation of the Impact of Reduced Oxygen Concentration on Embryonic Development
During this study, patients will undergo a routine in vitro fertilization cycle as they would otherwise if not participating in the study.
- Trial name
- LO2 (NCT02919384)
- Testing
- 2% oxygen concentration in the incubator
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Reproductive Medicine Associates of New Jersey
Post Operative Pain
Different Concentrations of Sodium Hypochlorite Affecting Post-endodontic Pain
This is a randomized, prospective, double-blind, clinical trial to assess the effect of 3% and 6% sodium hypochlorite (NaOCl) as irrigant on postendodontic pain and rescue medication intake following single visit root canal…
- Trial name
- NaOCl (NCT05840679)
- Testing
- Irrigation Solution
- Where
- Pakistan
- Volunteers
- 66 people, healthy volunteers welcome
- Sponsor
- Armed Forces Institute of Dentistry, Pakistan
Attention Deficit Hyperactivity Disorder
Neuroimaging Study of Risk Factors for Adolescent Bipolar Disorder
The main purpose of this study is to see the affects of the study medication called mixed amphetamine salts-extended release (MAS-XR) on brain function by taking brain pictures.
- Trial name
- NERF (NCT02478788)
- Testing
- mixed amphetamine salts-extended release (MAS-XR)
- Where
- United States
- Volunteers
- 153 people, healthy volunteers welcome
- Sponsor
- University of Cincinnati
Plasma Concentration
Effect Partial Digested Triglycerides on Supply Long-chain Fatty Acids to Very Preterm Newborns
Main objective: To determine the bioavailability of long-chain fatty acids in very preterm newborns after administering a supplement from the first days of life until 36 weeks postmenstrual age compared to children who did not…
- Trial name
- DHA-CIAL (NCT07311382)
- Testing
- Measure long-chain fatty acids in plasma after administration of a supplement from the first days of life until 36 weeks postmenstrual age
- Where
- Spain
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Hospital Universitario La Paz
Attention Difficulties
Effect of a Week-long Social Media Abstention on Sustained Attention Functions
The current study's goal is to determine if a one-week break from social media in all forms has a beneficial effect on people's attention, as measured by the Sustained Attention to Response Task, executive function as measured by…
- Trial name
- NCT06114017
- Testing
- Social Media Abstention
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- New York Institute of Technology
Attention Deficit Hyperactivity Disorder
An fMRI Study of Stimulant vs. Non-Stimulant Treatment of ADHD
Children with Attention-Deficit/Hyperactivity Disorder (ADHD) are typically treated with two types of medications with differing mechanisms of action: stimulants and non-stimulants.
- Trial name
- NCT02259517
- Testing
- Guanfacine, Lisdexamfetamine
- Where
- United States
- Volunteers
- 38 people, healthy volunteers welcome
- Sponsor
- New York State Psychiatric Institute
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