Clinical trials
Perception clinical trials
Below are recruiting perception clinical trials, each written for real people, not researchers. We’re tracking 210 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07671144Recruiting
How color and light judgment are affected by fatigue
This study looks at how tiredness affects your ability to see colors and judge lighting. You will do computer tasks to test your vision and answer some questions about how you feel.
Kowloon, Hung HomAges 18–25 - NCT07798271Recruiting
Optimizing deep brain stimulation for Parkinson's disease
This study is for people with Parkinson's disease who already have a deep brain stimulator (a device that sends electrical pulses to the brain) and still have motor fluctuations (times when symptoms come and go). The researchers want to see if adapting the device's settings can better control symptoms than the current standard settings.
Davis, CaliforniaAges 18 years+ - NCT07682311Recruiting
Adjusting brain stimulation automatically for Parkinson's
This study tests a new way to adjust deep brain stimulation (DBS) automatically during the day to better control Parkinson's symptoms. It is for people who already have a Percept DBS device but still have motor fluctuations.
San Francisco, CaliforniaAges 25–75 - NCT07398157Recruiting
24-hour adaptive deep brain stimulation for Parkinson's
This trial tests a new deep brain stimulation system that adapts in real time to improve symptom control over 24 hours, especially for people with daytime fluctuations or sleep problems despite standard DBS.
San Francisco, CaliforniaAges 18 years+ - NCT06884722Recruiting
Brain study of social perception in Parkinson's disease
This study uses brain scans to understand how people with Parkinson's disease process social cues, like faces and emotions. It may help researchers learn more about how Parkinson's affects social thinking.
BronAges 30–75 - NCT06691087Recruiting
Sound perception study for hearing aid users
This study looks at how people with hearing aids perceive sound. It compares results between hearing-impaired and normal-hearing participants to better understand hearing challenges in daily life.
ParisAges 60–75 - NCT07850167Recruiting
Pain during root canal treatment across menstrual stages
This study looks at how the menstrual cycle and menopause may affect pain during root canal treatment. It aims to help dentists better manage pain for women.
NiğdeAges 18 years+ - NCT05546138Recruiting
Study for early diabetic nerve damage in people with diabetes
This trial looks for and studies early nerve problems in the feet or legs that can happen with diabetes, before nerve damage is clearly diagnosed. It may help doctors better predict who is at risk and understand early changes.
AalborgAges 18–60 - NCT06659731Recruiting
Pain testing in children with autism
This study measures how children with autism experience pain using simple tests like warmth or pressure. It helps researchers understand sensory differences in autism.
Brindisi, BRAges 5–17 - NCT07677111Recruiting
Chronotype alignment and time perception study
This study explores how your natural sleep-wake pattern (chronotype) affects the way you perceive time. If you are a clear early bird or night owl, you may be invited to attend one early-morning and one late-evening session.
Hong KongAges 18–55 - NCT06841601Recruiting
Shaking or cold for less pain during dental shots
This trial tests whether a vibrating tool or a cold pack can help reduce pain when children get a numbing shot at the dentist. If your child needs a simple filling and is generally healthy, this study might help make their experience more comfortable.
AlexandriaAges 5–9 - NCT07292597Recruiting
Circadian timing and time perception study for healthy adults
This trial looks at how your internal body clock affects the way you perceive time. It may help you understand your own sleep patterns and daily rhythms better.
AarhusAges 23–45 - NCT07294781Recruiting
Circadian rhythm study in healthy adults during wakefulness
This study explores how your internal body clock and sense of time change during 36 hours of staying awake. You will stay in a lab and complete simple tasks to help researchers understand the link between circadian rhythms and time perception.
AarhusAges 23–45 - NCT06937398Recruiting
Survey on brain monitoring during kids' anesthesia
This study surveys parents and older children to understand their views on using EEG brain monitoring during anesthesia. It aims to improve care for children having planned surgeries.
SingaporeAges 12 years+ - NCT06098482Recruiting
Testing speech understanding with a mobile app for hearing device users
This study uses a smartphone app to test how well adults who use hearing aids or cochlear implants can understand speech. It aims to see if the app is a reliable way to measure hearing performance, which could make future check-ups easier and more convenient.
Lone Tree, ColoradoAges 18 years+ - NCT07148921Recruiting
Pain perception during gender affirming hormone therapy
This study looks at how starting gender affirming hormone therapy may change your experience of pain. If you are an adult assigned female at birth planning to start testosterone, or an adult assigned male at birth planning to start estradiol, and you have not taken any sex hormones in the past six months, this trial wants to measure your pain perception over time.
Vienna, State of ViennaAges 18 years+ - NCT07089953Recruiting
Does the doctor's computer use affect your visit?
This study looks at whether a small change in how doctors use electronic health records can improve how compassionate and professional they seem during your clinic visit. If you join, you would fill out a short survey after your appointment.
Houston, TexasAges 18 years+ - NCT05417542Recruiting
Study how young brains hear rhythms
This study looks at how babies’ brains process rhythm and sound. It may help researchers understand early brain development, especially from premature birth through infancy.
AmiensAges birth–18 years - NCT06996925Enrolling by invitation
Depression, illness beliefs, and erectile function
This study looks at how your feelings about your health and your mood may affect erectile dysfunction. It could help doctors understand the link between depression and erectile problems.
IstanbulAges 18 years+ - NCT06660225Recruiting
Deep brain stimulation for severe OCD
This trial tests if deep brain stimulation (a surgical treatment that uses electrical pulses to adjust brain activity) can help people with severe obsessive-compulsive disorder (OCD) that has not improved with other treatments. It is for adults aged 22 to 75 who have had OCD symptoms for over 5 years.
Dallas, TexasAges 22–75 - NCT06668350Recruiting
Smoking perceptions study for young adults who smoke little cigars
This study looks at how young adults who smoke little cigars or cigarillos perceive smoking in real-world settings. It aims to understand attitudes and behaviors to help develop better health messages.
Oklahoma City, OklahomaAges 18–34 - NCT06513871Enrolling by invitation
Social perception study for ages 16 and up
This study looks at how people understand social situations. It may help us learn more about social thinking in everyday life.
New Haven, ConnecticutAges 16–65 - NCT06377215Recruiting
How well do you hear speech in noise?
This study tests how well people understand speech in noisy settings, comparing younger and older adults with normal hearing and older adults with hearing loss. It aims to improve our understanding of hearing aid benefits.
Tampa, FloridaAges 18–80 - NCT05837039Recruiting
Comparing caregiver and nurse views of discomfort in advanced cancer
This study compares how healthcare providers and family caregivers judge discomfort in people with advanced cancer who are very hard to rouse and may be actively dying. It aims to understand whether caregiver and staff perceptions match, which could improve comfort care for patients near the end of life.
Houston, TexasAges 18 years+
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Common questions
- Are there clinical trials for perception?
- Yes. Clin2 currently lists 210 recruiting perception studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a perception trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a perception trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.