NCT07387783 Sleep Quality and Cognitive Functions in Adults: A Cross-Sectional Study
| NCT ID | NCT07387783 |
| Status | Recruiting |
| Phase | — |
| Sponsor | Uskudar University |
| Condition | Sleep Quality |
| Study Type | OBSERVATIONAL |
| Enrollment | 75 participants |
| Start Date | 2026-01-26 |
| Primary Completion | 2026-06 |
Eligibility & Interventions
Eligibility Fast-Check
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What to Expect as a Participant
This is an observational study. You will not receive an experimental treatment; researchers will collect data based on your existing condition or standard treatment.
This trial targets 75 participants in total. It began in 2026-01-26 with a primary completion date of 2026-06.
⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.
Brief Summary
This observational cross-sectional study aims to examine the association between sleep quality and cognitive functions in healthy young adults. Subjective sleep quality will be assessed using the Pittsburgh Sleep Quality Index, and objective sleep parameters will be collected using a wearable device over five consecutive days. Cognitive functions will be evaluated at a single assessment session using standardized neuropsychological tests, including measures of attention, executive functions, and verbal memory. The study seeks to explore relationships between subjective and objective sleep measures and cognitive performance. Findings from this study may contribute to a better understanding of how sleep quality is associated with cognitive functioning in healthy young adults.
Eligibility Criteria
Inclusion Criteria: * Between 18 and 35 years. * Ability and willingness to provide written informed consent. * Sufficient ability to read, understand, and communicate in Turkish, the language in which the assessments are administered. * Self-reported good general health, with no active medical or psychiatric conditions that significantly affect daily functioning. * Willingness and ability to wear a wearable sleep monitoring device continuously for five consecutive days and to comply with device usage instructions. * Ability to attend and complete a single-session cognitive assessment Exclusion Criteria: * Regular or frequent use of medications known to affect sleep or cognitive function, including sedative-hypnotics, benzodiazepines, antipsychotics, stimulants, opioids, or similar agents. * Initiation of, or dose changes in, psychotropic medications within the past four weeks. * Being under the influence of alcohol or illicit substances on the day of cognitive testing. * Engagement in night shift work or rotating shift schedules within the past one month. * Travel across time zones resulting in a time difference of two hours or more within the past two weeks. * Uncontrolled high daily intake of caffeine (e.g., \>400 mg/day) and unwillingness to reduce consumption during the study period. * Color blindness or other color vision deficiencies, due to their potential impact on Stroop Test performance. * Dermatological conditions, allergies, or skin lesions at the wrist that prevent wearing the device, or refusal to wear the device as required. * Acute illness within the past two weeks, including febrile infections, severe pain, or other acute medical conditions that may temporarily affect sleep or cognitive performance. * Pregnancy or early postpartum period.
Contact & Investigator
Fatma Demir, MSc
PRINCIPAL INVESTIGATOR
Üsküdar University
Frequently Asked Questions
Who can join the NCT07387783 clinical trial?
This trial is open to participants of all sexes, aged 18 Years or older, up to 35 Years, studying Sleep Quality. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.
Is NCT07387783 currently recruiting?
Yes, NCT07387783 is actively recruiting participants. Contact the research team at fatma.demir@uskudar.edu.tr for enrollment information.
Where is the NCT07387783 trial being conducted?
This trial is being conducted at Istanbul, Turkey (Türkiye).
Who is sponsoring the NCT07387783 clinical trial?
NCT07387783 is sponsored by Uskudar University. The principal investigator is Fatma Demir, MSc at Üsküdar University. The trial plans to enroll 75 participants.