Search results for " vigilance"
showing 5 items of 15 documents
The relationship between vigilance capacity and physical exercise: a mixed-effects multistudy analysis
2019
We thank to all the participants who took part in the experiment.
Force Control and Motor Unit Firing Behavior Following Mental Fatigue in Young Female and Male Adults
2020
Purpose: The neuromuscular mechanisms leading to impaired motor performance in the presence of mental fatigue remain unclear. It is also unknown if mental fatigue differentially impacts motor performance in males and females. The purpose of this study was to assess the impact of mental fatigue on force production and motor unit (MU) firing behavior in males and females. Methods: Nineteen participants performed 10-s isometric dorsiflexion (DF) contractions at 20 and 50% maximum voluntary contraction (MVC) before, during, and after completing 22 min of the psychomotor vigilance task (PVT), to induce mental fatigue. The DF force and indwelling MU firing behavior of the tibialis anterior (TA) w…
Sleep restriction for the duration of a work week impairs multitasking performance
2010
It is important to develop shift schedules that minimise the chance for sleep-related human error in safety-critical domains. Experimental data on the effects of sleep restriction (SR) play a key role in this development work. In order to provide such data, we conducted an experiment in which cognitively demanding and long-duration task performance, simulating task performance at work, was measured under SR and following recovery. Twenty healthy male volunteers, aged 19-29 years, participated in the study. Thirteen of them had first two baseline days (8-h sleep opportunity per day), then five SR days (4-h sleep) and finally two recovery days (8-h sleep). Seven controls were allowed to sleep…
Pastores en los libros de emblemas españoles
2009
International audience; In Spanish emblem books the figure of the badly shepherd is used for criticizing the excessive tax system and the abandonment of the power on the part of the king. Two types of representations use: rustic shepherd and mythological shepherd. These are applied both to the power of the state and to the individual area.; En los libros de emblemas se utiliza la figura del mal pastor para criticar la fiscalidad excesiva y la dejación del poder por parte del rey. Dos tipos de representaciones se emplean : pastor rústico y pastor mitológico. Estas se aplican tanto al poder del estado como al ámbito individual.