Effects of Morningness on Night Split Shift Performance
NCT ID: NCT06440434
Last Updated: 2024-06-13
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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ACTIVE_NOT_RECRUITING
NA
30 participants
INTERVENTIONAL
2024-04-19
2024-12-31
Brief Summary
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Does those with high score of morningness function relatively better on the last compared to the first split shift?
Participants will:
Record their sleep from 2 days prior to 2 days following the split shift During the shifts complete questionnaires assessing mood, sleepiness and perceived performance as well as complete cognitive tests: Psychomotor vigilance test, digit symbol substitution test, working memory scanning test, reversal learning test, and visual search test
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Detailed Description
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Each hour on each shift the participants will complete: Positive and Negative Affect Schedule (PANAS), Karolinska Sleepiness Scale, perceived performance and the following cognitive tests: Psychomotor vigilance test, Digit symbol substitution test, Working memory scanning test, Reversal learning test, and Visual search test.
Data will be analyzed with linear mixed models with three fixed factors: Group (low vs. high morningness), shift (midnight-4am vs. 4am-8am), and hour and one random factor (participant).
Conditions
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Study Design
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RANDOMIZED
CROSSOVER
BASIC_SCIENCE
NONE
Study Groups
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Early night shift (midnight-4am)
Time of night shift
Early vs. late night split night shift
Late night shift (4am - 8am)
Time of night shift
Early vs. late night split night shift
Interventions
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Time of night shift
Early vs. late night split night shift
Eligibility Criteria
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Inclusion Criteria
* no incorrectable vision problems
Exclusion Criteria
18 Years
40 Years
ALL
Yes
Sponsors
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University of Bergen
OTHER
Responsible Party
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Ståle Pallesen
Professor
Locations
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University of Bergen
Bergen, , Norway
Countries
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Other Identifiers
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M3447
Identifier Type: -
Identifier Source: org_study_id
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