NDLI: Distinguishing analysis on workload peak and overload under time pressure with pupil diameter

Content Provider	IEEE Xplore Digital Library
Author	Lijing Wang Xueli He Yingchun Chen
Copyright Year	2014
Description	Author affiliation: Undamental Sci. on Ergonomics & Environ. Contr ol Lab., Beihang Univ., Beijing, China (Lijing Wang; Xueli He) \|\| Shanghai Aircraft Design & Res. Inst., Shanghai, China (Yingchun Chen)
Abstract	The main purpose of workload measurement is to identify conditions for overload so that they can be avoided by design. The operators' workload peak is difficult to measure by subjective evaluation. Pupil diameter is widely used as a factor to measure workload sensitively, so it's necessary to study the relationship between the workload peak and pupil diameter measurement. Eight trials were designed under different time pressure ranges from 0.5 to 1.5. The participants are required to press the corresponding letter key on the keyboard according to the letter on the screen randomly. In the experiments, the pupil diameter was measured by eye tracker. The relationship of pupil diameter, time pressure and correct rate was analyzed and established. Three change regions of the pupil diameter under different time pressure were found, which includes irregular change region, increasing linear region, decreasing linear region. When using pupil diameter to measure workload, the pupil diameter change irregularly in optimal performance region and task-related effort region. In overload region, there are two sub-regions: the pupil diameter is in linear increasing change and in linear decreasing change. The peak point of pupil diameter represents the most task-related effort, not the peak point of performance and workload. The change size of pupil diameter can represent the workload change, but the peak size of pupil diameter can't be used directly to the quantitative analysis.
Sponsorship	IEEE Commun. Soc.
Starting Page	151
Ending Page	155
File Size	409895
Page Count	5
File Format	PDF
e-ISBN	9781479935642
DOI	10.1109/CogSIMA.2014.6816555
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-03-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Correlation Atmospheric measurements Ergonomics Conferences Overload Pupil diameter Educational institutions Particle measurements Performance Standards Workload
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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