Assessment of mental workload states in monitors using functional near-infrared spectroscopy.
Background: As technology develops rapidly and complex systems become more widespread, the study of mental workload (MWL) for monitors has become increasingly important. Objective: To explore the signaling features of functional near-infrared spectroscopy (fNIRS) in different MWL states. Methods: Tw...
| Published in: | Work Vol. 81; no. 1; pp. 2198 - 2207 |
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| Main Authors: | , , |
| Format: | pictorial research tables/charts Journal Article |
| Published: |
Sage Publications Inc.
May2025
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=185232257&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 185232257 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10519815 3RC jtl: Work issn: 10519815 maglogo: N pubinfo: dt: May2025 vid: 81 iid: 1 pid: 344 pub: Sage Publications Inc. place: Thousand Oaks, California artinfo: ui: 185232257 182382130 185232257 185232257 10.1177/10519815241306414 185232257 ppf: 2198 ppct: 9 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Assessment of mental workload states in monitors using functional near-infrared spectroscopy. aug: au: Wang, Yuzhen Yu, Ruifeng Shi, Tongyu affil: National Key Laboratory of Human Factors Engineering, Beijing, 100094, China sug: subj: Spectroscopy, Near-Infrared Workload Measurement Mental Health Evaluation Computer Peripherals Human Funding Source Questionnaires Male Female Adult Descriptive Statistics Hemoglobins Blood Oxygen Saturation Prefrontal Cortex Physiology Adult: 19-44 years Male Female ab: Background: As technology develops rapidly and complex systems become more widespread, the study of mental workload (MWL) for monitors has become increasingly important. Objective: To explore the signaling features of functional near-infrared spectroscopy (fNIRS) in different MWL states. Methods: Twenty participants performed the N-back task and fNIRS data were collected to measure changes in blood oxygenation levels in the prefrontal cortex. Additionally, performance metrics and NASA Task Load Index (NASA-TLX) questionnaire results were recorded. Results: NASA-TLX scores increased progressively from 0-back (M = 8.750) to 1-back (M = 34.792), 2-back (M = 52.292), and 3-back (M = 75.625). Significant differences were observed in oxygenated hemoglobin (HbO) concentrations (F 3, 57 = 10.557, p < 0.001) across these tasks. HbO increased from 0-back (M = -0.008) to 1-back (M = -0.002) and 2-back (M = -0.001), but decreased to 3-back (M = -0.002). Channels CH16, CH17, and CH18, located in the left dorsolateral prefrontal cortex (DLPFC), were significantly activated in the 1-back, 2-back, and 3-back conditions. CH1 and CH2, which are located in the right DLPFC, showed significant activation in both the 2-back and 3-back tasks. Conclusions: Our results showed that different levels of the N-back tasks triggered different MWL states. Significant differences in HbO concentrations and activated channels were observed across tasks with varying MWLs. HbO followed an "inverted U" pattern, increasing as the MWL shifted from underload to normal, and subsequently decreasing as it reached overload. Additionally, the left DLPFC was activated earlier than the right DLPFC, with the latter gradually engaging as the MWL increased. This study provides valuable insights into the assessment of MWL states. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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