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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Perceptions Clear all
Completed No phase listed Observational

Wellness and Quality of Life Perceptions of People With Traumatic Brain Injury

NCT04794894
View directory record Official record
Conditions
Brain Injuries, Traumatic
Interventions
outpatient rehabilitation
Behavioral
Lead sponsor
Quality Living, Inc.
Other
Eligibility
19 Years to 70 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Jun 24, 2026 · Synced Sep 5, 2026, 11:54 PM EDT
Active, not recruiting Not applicable Interventional

Patient Perceptions of the Relational Empathy of Healthcare Practitioners From the Department of Emergency Medicine During the COVID-19 Pandemic

NCT05102656
View directory record Official record
Conditions
COVID-19 Infection, Hematopoietic and Lymphoid Cell Neoplasm, Malignant Solid Neoplasm
Interventions
Best Practice, Discussion, Questionnaire Administration
Other · Procedure
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
107 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 19, 2026 · Synced Sep 5, 2026, 11:54 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Perceptions of and Reactions to Ultra-Processed Menu Label Designs

NCT07214805
View directory record Official record
Conditions
Food Choices
Interventions
Ultra-Processed, Red, Icon-plus-text Labels, Contains Food Additives, Red, Icon-plus-text Labels, Warning Ultra-Processed, Red, Icon-plus-text Labels, Warning UPF, Red, Icon-plus-text Labels, Ultra-Processed, Yellow, Icon-plus-text Labels, Contains Food Additives, Yellow, Icon-plus-text Labels, Warning Ultra-Processed, Yellow, Icon-plus-text Labels, Warning UPF, Yellow, Icon-plus-text Labels, Ultra-Processed, Red, Text-only Labels, Contains Food Additives, Red, Text-only Labels, Warning Ultra-Processed, Red, Text-only Labels, Warning UPF, Red, Text-only Labels, Ultra-Processed, Yellow, Text-only Labels, Contains Food Additives, Yellow, Text-only Labels, Warning Ultra-Processed, Yellow, Text-only Labels, Warning UPF, Yellow, Text-only Labels
Behavioral
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
18 Years and older
Enrollment
14,720 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 10, 2025 · Synced Sep 5, 2026, 11:54 PM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Investigating the Mechanisms of the Effects of Psilocybin on Visual Perception and Visual Representations in the Brain

NCT05265546
View directory record Official record
Conditions
Perception Disorders
Interventions
Psilocybin
Drug
Lead sponsor
University of California, Berkeley
Other
Eligibility
21 Years and older
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
1
States / cities
Berkeley, California
Source: ClinicalTrials.gov public record
Updated Jul 9, 2026 · Synced Sep 5, 2026, 11:54 PM EDT
Completed Not applicable Interventional

Influencer Marketing and Adolescent E-cigarette Use

NCT07420842
View directory record Official record
Conditions
Vaping
Interventions
Youth Perceptions of Influencer Age and Fitness Contexts in E-Cigarette Marketing
Other
Lead sponsor
University of Southern California
Other
Eligibility
14 Years to 17 Years
Enrollment
700 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Feb 18, 2026 · Synced Sep 5, 2026, 11:54 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Optimizing Noisy Galvanic Vestibular Stimulation Frequency Range for Enhancing Vestibular Perception and Manual Control Performance

NCT07730398
View directory record Official record
Conditions
Vestibular Function Tests, Sensorimotor Performance
Interventions
Low-frequency noisy galvanic vestibular stimulation (nGVS), High-frequency noisy galvanic vestibular stimulation (nGVS)
Device
Lead sponsor
National Aeronautics and Space Administration (NASA)
Federal
Eligibility
22 Years and older
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 27, 2026 · Synced Sep 5, 2026, 11:54 PM EDT
Completed No phase listed Observational

Perception of Palliative Care Encounter

NCT02558257
View directory record Official record
Conditions
Advanced Cancers
Interventions
Survey
Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
209 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Apr 13, 2021 · Synced Sep 5, 2026, 11:54 PM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

The Effect of Transcutaneous Magnetic Stimulation on Acute Pain.

NCT03777137
View directory record Official record
Conditions
Pain Perception
Interventions
TMS (Rapid2, Magstim Corp)
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 80 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 13, 2021 · Synced Sep 5, 2026, 11:54 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Relationship Between Diet, Lifestyle, and the Severity of Coronary Artery Disease

NCT02382250
View directory record Official record
Conditions
Dietary Habits, Coronary Artery Disease, Lifestyle
Interventions
Survey
Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
440 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 10, 2017 · Synced Sep 5, 2026, 11:54 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Effects of Mobile App in House Staff Health and Well-being During COVID-19 Pandemic

NCT04374786
View directory record Official record
Conditions
Perceived Stress, Anxiety, Sleep Disturbance, Burnout, PTSD
Interventions
Calm Meditation App
Device
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 99 Years
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Nov 9, 2025 · Synced Sep 5, 2026, 11:54 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Acupuncture for Perceived Stress in Military Personnel

NCT03364361
View directory record Official record
Conditions
Acupuncture, Perceived Stress, Military Personnel
Interventions
Acupuncture
Procedure
Lead sponsor
United States Naval Medical Center, San Diego
Federal
Eligibility
18 Years to 65 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Mar 28, 2018 · Synced Sep 5, 2026, 11:54 PM EDT
Not listed Phase 1Phase 2 Interventional Accepts healthy volunteers

Behavioral and Physiological Effects of Visual Training

NCT00526942
View directory record Official record
Conditions
Healthy
Interventions
SAAGE-designed, visual memory-based cognitive training
Behavioral
Lead sponsor
Posit Science Corporation
Industry
Eligibility
60 Years and older
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
San Francisco Bay Area, California
Source: ClinicalTrials.gov public record
Updated Sep 10, 2007 · Synced Sep 5, 2026, 11:54 PM EDT
Completed No phase listed Observational

Relationship Stressors in Parents of Children With Cancer or Neurofibromatosis Type 1 (NF1)

NCT01702922
View directory record Official record
Conditions
Parents of Children With Cancer, Parents of Children With NF1, Parents of Children With Neurofibromatosis Type I
Interventions
Not listed
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
262 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2020
U.S. locations
2
States / cities
Bethesda, Maryland • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 30, 2024 · Synced Sep 5, 2026, 11:54 PM EDT
Not listed No phase listed Observational

Motion Perception in Individuals With Type 2 Diabetes

NCT03380832
View directory record Official record
Conditions
Diabetes Mellitus, Type 2
Interventions
Not listed
Lead sponsor
Massachusetts Eye and Ear Infirmary
Other
Eligibility
18 Years to 80 Years
Enrollment
16 participants
Timeline
2017 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 15, 2018 · Synced Sep 5, 2026, 11:54 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Brief Title: Project 4 Example: Mixed Hybrid Checklist

NCT05272163
View directory record Official record
Conditions
Incidental Findings, Visual Attention, Visual Search, Hybrid Search
Interventions
Stimulus Type, Target Presence, Checklist
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 18, 2025 · Synced Sep 5, 2026, 11:54 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Surgeon Perception of Gastric Decompression at Time of Gynecologic Laparoscopy

NCT06137976
View directory record Official record
Conditions
Gynecologic Surgical Procedures, Gastric Injury, Aspiration, Nausea, Postoperative, Postoperative Complications, Enhanced Recovery After Surgery, Laparoscopy
Interventions
Gastric decompression (oropharyngeal or nasopharyngeal gastric tube)
Procedure
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older · Female only
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
2
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 29, 2025 · Synced Sep 5, 2026, 11:54 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Emotion Regulation and Emotion Perception

NCT03790878
View directory record Official record
Conditions
Emotions
Interventions
Mindful Breathing, Habituation, Control
Behavioral
Lead sponsor
Duke University
Other
Eligibility
18 Years to 55 Years
Enrollment
91 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 23, 2021 · Synced Sep 5, 2026, 11:54 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

A 6-month, Randomized, Double-blind, Placebo Controlled Study Evaluating the Efficacy and Safety of USPlus DERM to Promote Hair Growth in Men and Women With Self-perceived Thinning Hair.

NCT06920758
View directory record Official record
Conditions
Thinning Hair
Interventions
USPlus DERM Bioactive Fatty Acids 160 mg Softgels, Placebo softgel
Dietary Supplement · Other
Lead sponsor
Ablon Skin Institute Research Center
Other
Eligibility
25 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Manhattan Beach, California
Source: ClinicalTrials.gov public record
Updated Apr 9, 2025 · Synced Sep 5, 2026, 11:54 PM EDT
Completed No phase listed Observational

Hypersensitivity in Tourette Syndrome

NCT00368433
View directory record Official record
Conditions
Tourette's Syndrome
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years to 65 Years
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 5, 2026, 11:54 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Visual Mode Switching in Color Perception

NCT05779228
View directory record Official record
Conditions
Perception of Things Changing Color, Adaptive Behavior
Interventions
Mode Switching Training
Behavioral
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2032
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 13, 2026 · Synced Sep 5, 2026, 11:54 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Sensory Processing Difficulties in Adults and Adolescents

NCT02205658
View directory record Official record
Conditions
Sensory Processing Dysfunction
Interventions
Not listed
Lead sponsor
The Spiral Foundation at OTA Watertown
Other
Eligibility
13 Years to 95 Years
Enrollment
1,300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Newton, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 30, 2014 · Synced Sep 5, 2026, 11:54 PM EDT
Completed Phase 3 Interventional

Tasimelteon for the Treatment of Non-24-hour Sleep-Wake Disorder (N24HSWD) in Blind Individuals With no Light Perception

NCT01429116
View directory record Official record
Conditions
Non-24-Hour Sleep-Wake Disorder
Interventions
tasimelteon
Drug
Lead sponsor
Vanda Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
22
States / cities
Phoenix, Arizona • Orange, California • Palo Alto, California + 19 more
Source: ClinicalTrials.gov public record
Updated Apr 20, 2015 · Synced Sep 5, 2026, 11:54 PM EDT
Completed Not applicable Interventional

Childhood Asthma Perception Study

NCT02702687
View directory record Official record
Conditions
Asthma, Childhood Asthma
Interventions
PEF Feedback, Control Feedback
Behavioral
Lead sponsor
Albert Einstein College of Medicine
Other
Eligibility
10 Years to 17 Years
Enrollment
363 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
2
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Feb 5, 2023 · Synced Sep 5, 2026, 11:54 PM EDT
Completed No phase listed Observational

Vasculitis Illness Perception (VIP) Study

NCT02190916
View directory record Official record
Conditions
Wegener Granulomatosis, Microscopic Polyangiitis, Churg-Strauss Syndrome, Polyarteritis Nodosa, Giant Cell Arteritis, Takayasu's Arteritis, Henoch-Schoenlein Purpura, Behcet's Disease, CNS Vasculitis
Interventions
Not listed
Lead sponsor
University of South Florida
Other
Eligibility
18 Years and older
Enrollment
707 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Jul 14, 2014 · Synced Sep 5, 2026, 11:54 PM EDT