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Influences of fatigue and alcohol on cognitive performance

Hörmann, Hans-Jürgen (2019) Influences of fatigue and alcohol on cognitive performance. In: Advances in Aviation Psychology Advances in Aviation Psychology (Vol. 3). Improving Aviation Performance through Applying Engineering Psychology. CRC Press. pp. 57-73. doi: 10.4324/9780429492181. ISBN 9781138588639.

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Official URL: https://www.taylorfrancis.com/books/9781138588639


A sleep deprivation study was conducted at the German Aerospace Center (DLR) to examine the effects of sleepiness and alcohol on cognitive performance and self-assessment of performance. A total number of 46 subjects stayed for 12 consecutive days and nights in the ASMAN sleep laboratory in Cologne. According to the experimental protocol subjects were deprived of sleep totally and partially for two single nights during their stay. In addition, on one evening they consumed a moderate amount of alcohol. Every three hours during the time awake a computerized cognitive test-battery of pilot and air traffic controller aptitudes was administered to the subjects including spatial orientation, perceptual speed, attention control, and psychomotor precision. Additionally, subjective levels of fatigue were measured periodically. Prior to and subsequent to each testing subjects were asked to assess their current level of performance for each of the aptitude areas. The accuracy of the self-assessments was analyzed in relation to the different cognitive areas under baseline conditions as well as under treatment conditions. The chapter focuses on the comparison of prospective and retrospective accuracy of the self-assessments in relation to conditions of sleep restriction, alcohol consumption, and subjective levels of fatigue.

Item URL in elib:https://elib.dlr.de/126723/
Document Type:Book Section
Title:Influences of fatigue and alcohol on cognitive performance
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Hörmann, Hans-JürgenHans.Hoermann (at) dlr.dehttps://orcid.org/0000-0002-6358-7027
Date:11 February 2019
Journal or Publication Title:Advances in Aviation Psychology
Refereed publication:Yes
Open Access:No
In ISI Web of Science:No
DOI :10.4324/9780429492181
Page Range:pp. 57-73
EditorsEmailEditor's ORCID iD
Vidulich, Michael A.Air Force Research Laboratory, OhioUNSPECIFIED
Tsang, Pamela S.Wright State UniversityUNSPECIFIED
Publisher:CRC Press
Series Name:Advances in Aviation Psychology (Vol. 3). Improving Aviation Performance through Applying Engineering Psychology
Keywords:fatigue, cognitive performance, self-assessment, pilots
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:air traffic management and operations
DLR - Research area:Aeronautics
DLR - Program:L AO - Air Traffic Management and Operation
DLR - Research theme (Project):L - Human factors and safety in Aeronautics (old)
Location: Hamburg
Institutes and Institutions:Institute of Aerospace Medicine > Aviation and Space Psychology
Deposited By: Hörmann, Dr.phil. Hans-Jürgen
Deposited On:21 May 2019 17:30
Last Modified:21 May 2019 17:30

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