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Effect of Different Color Lights on the Internal Clock and Alertness in Humans

NCT05423002 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 68

Last updated 2022-06-21

No results posted yet for this study

Summary

The main aim of this study is to investigate the effects of cone-modulated light emitted from a visual display on human circadian physiology and cognitive performance in the evening.

Conditions

  • Light Flashing

Interventions

OTHER

Flickering light stimuli

The intervention will be exposed to flickering lights (≤200 lux). More specifically, the participants will be asked to be exposed to a specified flickering light (1Hz, 30 seconds On, and 30 seconds OFF) for 2 hours starting at their habitual bedtime (HBT).

OTHER

Constant light stimuli

The intervention will be exposed to constant background lights (≤200 lux). The participants will be asked to be exposed to a specified constant light for 2 hours starting at their habitual bedtime (HBT).

OTHER

Dim light

This light condition is the baseline (≤10 lux).

Sponsors & Collaborators

  • Horizon 2020 - European Commission

    collaborator OTHER

  • University of Basel

    lead OTHER

Principal Investigators

  • Christian Cajochen, Prof · Centre for Chronobiology, UPK, University of Basel

Study Design

Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
SINGLE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Max Age
35 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2022-06-20
Primary Completion
2023-03-15
Completion
2023-09-15

Countries

  • Switzerland

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05423002 on ClinicalTrials.gov