Near-infrared Spectroscopy application for discriminating the mental workload in humans.
type: Dataset
description: Daily behavior requires taking into account some information and actions planning which may seem trivial for us. However, it is the fruit of a complex and sophisticated processing from the brain. The cerebral processes underlie cognitive and motor functions in humans. In order to record in situ the temporal evolution of cerebral signals reflecting our behavior during cognitive and/or sensorimotor tasks, different non-invasive methods from Neuroergonomics could be used. Among the available functional neuroimaging methods, the near infrared spectroscopy (NIRS) allowing indirectly to measure cortical activity (ie, changes in hemodynamic response) appears relevant to appreciate continuously cortical activity. In this thesis, using NIRS, we were interested in highlighting the correlates between cortical activity (frontal lobe) and the level of stimulation induced by workload during cognitive and/or motor tasks at sub-maximal efforts and variable difficulties. Three studies were conducted. The results indicate that the hemodynamic activity changes by NIRS depend on the workload. The cortical activity is measurable at a sub-maximal intensity for cognitive and/or motor tasks, as long as the signal analysis can discriminate low to moderate loads. This work has revealed the sensitivity and usefulness of NIRS in workload application.
issued: 2026-05-09T12:32:46.279850
language: fr
modified: 2026-05-09T12:32:46.279855
contact point: Organization
  fn: CCSD
keyword: arithmetic-task
keyword: charge-de-travail-mental
keyword: cortex-prefrontal
keyword: cpf
keyword: handgrip
keyword: human-performance
keyword: infoeu-reposemanticsdoctoralthesis
keyword: mental-workload
keyword: near-infrared-spectroscopy
keyword: neuroergonomics
keyword: neuroergonomie
keyword: nirs
keyword: performance-humaine
keyword: pfc
keyword: prefrontal-cortex
keyword: sdvneulife-sciences-q-bioneurons-and-cognition-q-bionc
keyword: spectroscopie-proche-infrarouge
keyword: tache-arithmetique
keyword: theses
landing page: https://theses.hal.science/tel-00868844

Near-infrared Spectroscopy application for discriminating the mental workload in humans.
type: Distribution
format: HTML
issued: 2026-05-09T12:32:46.304102
modified: 2026-05-09T12:32:46.262167
access URL: https://theses.hal.science/tel-00868844

test_moissonnage_selune
type: Agent