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Mental Workload Classification by Eye Movements in Visual Search Tasks

  • Liping Pang
  • , Yurong Fan
  • , Ye Deng
  • , Xin Wang
  • , Tianbo Wang
  • Beihang University
  • China Institute of Marine Technology & Economy
  • Shenyang Aerospace University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents a method to objectively evaluate mental workload by analyzing the changes of eye movements characteristics in different visual search tasks. Eye movements data were collected by the eye tracking device called Eye Tracking Core+ while subjects were performing four different visual search tasks produced by NASA's Multi-Attribute Task Battery (MATB) on the screen of computer. By varying the difficulty of visual search tasks, the eye movements were measured to examine whether they could be used to classify the mental workload. As a result, the five indexes (Saccades Amplitude, Saccades Velocity, Fixation Duration, Blink Duration and Pupil Diameter) showed significant differences under low and high workload of visual search tasks. Moreover, with the increase of task workload, Saccades Amplitude, Saccades Velocity, and Blink Duration decreased significantly, while Fixation Duration and Pupil Diameter increased gradually.

Original languageEnglish
Title of host publicationProceedings - 2020 13th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2020
EditorsQiang Zheng, Xiaopeng Zheng, Xiangfu Zhao, Weiqing Yan, Nan Zhang, Lipo Wang
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages29-33
Number of pages5
ISBN (Electronic)9780738105451
DOIs
StatePublished - 17 Oct 2020
Event13th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2020 - Virtual, Chengdu, China
Duration: 17 Oct 202019 Oct 2020

Publication series

NameProceedings - 2020 13th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2020

Conference

Conference13th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2020
Country/TerritoryChina
CityVirtual, Chengdu
Period17/10/2019/10/20

Keywords

  • Eye Movements
  • Mental Workload
  • Visual Search Tasks

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