Abstract:
:One goal of advanced information and communication technology is to simplify work. However, there is growing consensus regarding the negative consequences of inappropriate workload on employee's health and the safety of persons. In order to develop a method for continuous mental workload monitoring, we implemented a task battery consisting of cognitive tasks with diverse levels of complexity and difficulty. We conducted experiments and registered the electroencephalogram (EEG), performance data, and the NASA-TLX questionnaire from 54 people. Analysis of the EEG spectra demonstrates an increase of the frontal theta band power and a decrease of the parietal alpha band power, both under increasing task difficulty level. Based on these findings we implemented a new method for monitoring mental workload, the so-called Dual Frequency Head Maps (DFHM) that are classified by support vectors machines (SVMs) in three different workload levels. The results are in accordance with the expected difficulty levels arising from the requirements of the tasks on the executive functions. Furthermore, this article includes an empirical validation of the new method on a secondary subset with new subjects and one additional new task without any adjustment of the classifiers. Hence, the main advantage of the proposed method compared with the existing solutions is that it provides an automatic, continuous classification of the mental workload state without any need for retraining the classifier-neither for new subjects nor for new tasks. The continuous workload monitoring can help ensure good working conditions, maintain a good level of performance, and simultaneously preserve a good state of health.
journal_name
Front Physioljournal_title
Frontiers in physiologyauthors
Radüntz Tdoi
10.3389/fphys.2017.01019subject
Has Abstractpub_date
2017-12-08 00:00:00pages
1019issn
1664-042Xjournal_volume
8pub_type
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pub_type: 杂志文章,评审
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pub_type: 杂志文章
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journal_title:Frontiers in physiology
pub_type: 杂志文章
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pub_type: 杂志文章,评审
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journal_title:Frontiers in physiology
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journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2018.00922
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journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2013.00393
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journal_title:Frontiers in physiology
pub_type: 杂志文章
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journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2017.00220
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abstract::In this paper we develop a novel mathematical model of the insulin-TOR-MAPK signaling network that controls growth. Most data on the properties of the insulin and MAPK signaling networks are static and the responses to experimental interventions, such as knockouts, overexpression, and hormonal input are typically repo...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2013.00245
更新日期:2013-09-12 00:00:00
abstract:AIM:The signaling pathways involved in the regulation of cardiac GLUT4 translocation/glucose uptake and CD36 translocation/long-chain fatty acid uptake are not fully understood. We compared in heart/muscle-specific PKC-λ knockout mice the roles of atypical PKCs (PKC-ζ and PKC-λ) in regulating cardiac glucose and fatty ...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2012.00361
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abstract::Systems biology approaches provide means to study the interplay between biological processes leading to the mechanistic understanding of the properties of complex biological systems. Here, we developed a vector format rule-based Boolean logic model of the yeast S. cerevisiae cAMP-PKA, Snf1, and the Snf3-Rgt2 pathway t...
journal_title:Frontiers in physiology
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doi:10.3389/fphys.2018.01964
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abstract::Aim: The hemodynamic response to mouse systemic anaphylaxis is characterized by an initial hypertension followed by sustained hypotension. However, the defense mechanisms of the sympathetic nervous system against this circulatory disturbance is not known. Here, we investigated the renal sympathetic nerve activity (RSN...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2017.00669
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journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2014.00364
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journal_title:Frontiers in physiology
pub_type: 杂志文章,评审
doi:10.3389/fphys.2014.00098
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abstract::Several Octopodidae species have a great potential for the diversification of worldwide aquaculture. Unfortunately, the lack of stress-related biomarkers in this taxon results an obstacle for its maintenance in conditions where animal welfare is of paramount relevance. In this study, we made a first approach to uncove...
journal_title:Frontiers in physiology
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doi:10.3389/fphys.2019.00784
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pub_type: 杂志文章
doi:10.3389/fphys.2018.00428
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pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2019.01114
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journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2019.00373
更新日期:2019-04-04 00:00:00
abstract::The Subolesin/Akirin constitutes a good model for the study of functional evolution because these proteins have been conserved throughout the metazoan and play a role in the regulation of different biological processes. Here, we investigated the evolutionary history of Subolesin/Akirin with recent results on their str...
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pub_type: 杂志文章,评审
doi:10.3389/fphys.2018.01612
更新日期:2018-11-13 00:00:00
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journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2017.00185
更新日期:2017-04-07 00:00:00