Using fNIRS in usability testing: understanding the effect of web form layout on mental workload

Amongst the many tasks in our lives, we encounter web forms on a regular basis, whether they are mundane like registering for a website, or complex and important like tax returns. There are many aspects of Usability, but one concern for user interfaces is to reduce mental workload and error rates. W...

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Main Authors: Lukanov, Kristiyan Emilov, Maior, Horia A., Wilson, Max L.
Format: Conference or Workshop Item
Published: 2016
Subjects:
Online Access:https://eprints.nottingham.ac.uk/31334/
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author Lukanov, Kristiyan Emilov
Maior, Horia A.
Wilson, Max L.
author_facet Lukanov, Kristiyan Emilov
Maior, Horia A.
Wilson, Max L.
author_sort Lukanov, Kristiyan Emilov
building Nottingham Research Data Repository
collection Online Access
description Amongst the many tasks in our lives, we encounter web forms on a regular basis, whether they are mundane like registering for a website, or complex and important like tax returns. There are many aspects of Usability, but one concern for user interfaces is to reduce mental workload and error rates. Whilst most assessment of mental workload is subjective and retrospective reporting by users, we examine the potential of functional Near Infrared Spectroscopy (fNIRS) as a tool for objectively and concurrently measuring mental workload during usability testing. We use this technology to evaluate the design of three different form layouts for a car insurance claim process, and show that a form divided into subforms increases mental workload, contrary to our expectations. We conclude that fNIRS is highly suitable for objectively examining mental workload during usability testing, and will therefore be able to provide more detailed insight than summative retrospective assessments. Further, for the fNIRS community, we show that the technology can easily move beyond typical psychology tasks, and be used for more natural study tasks.
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spelling nottingham-313342020-05-04T20:05:26Z https://eprints.nottingham.ac.uk/31334/ Using fNIRS in usability testing: understanding the effect of web form layout on mental workload Lukanov, Kristiyan Emilov Maior, Horia A. Wilson, Max L. Amongst the many tasks in our lives, we encounter web forms on a regular basis, whether they are mundane like registering for a website, or complex and important like tax returns. There are many aspects of Usability, but one concern for user interfaces is to reduce mental workload and error rates. Whilst most assessment of mental workload is subjective and retrospective reporting by users, we examine the potential of functional Near Infrared Spectroscopy (fNIRS) as a tool for objectively and concurrently measuring mental workload during usability testing. We use this technology to evaluate the design of three different form layouts for a car insurance claim process, and show that a form divided into subforms increases mental workload, contrary to our expectations. We conclude that fNIRS is highly suitable for objectively examining mental workload during usability testing, and will therefore be able to provide more detailed insight than summative retrospective assessments. Further, for the fNIRS community, we show that the technology can easily move beyond typical psychology tasks, and be used for more natural study tasks. 2016 Conference or Workshop Item PeerReviewed Lukanov, Kristiyan Emilov, Maior, Horia A. and Wilson, Max L. (2016) Using fNIRS in usability testing: understanding the effect of web form layout on mental workload. In: Proceedings of the 34th Annual ACM Conference on Human Factors in Computing Systems, 7th-13th May 2016, San Jose, USA. Mental workload; web forms; usability; functional near-infrared spectroscopy; fNIRS http://dl.acm.org/citation.cfm?doid=2858036.2858236
spellingShingle Mental workload; web forms; usability; functional near-infrared spectroscopy; fNIRS
Lukanov, Kristiyan Emilov
Maior, Horia A.
Wilson, Max L.
Using fNIRS in usability testing: understanding the effect of web form layout on mental workload
title Using fNIRS in usability testing: understanding the effect of web form layout on mental workload
title_full Using fNIRS in usability testing: understanding the effect of web form layout on mental workload
title_fullStr Using fNIRS in usability testing: understanding the effect of web form layout on mental workload
title_full_unstemmed Using fNIRS in usability testing: understanding the effect of web form layout on mental workload
title_short Using fNIRS in usability testing: understanding the effect of web form layout on mental workload
title_sort using fnirs in usability testing: understanding the effect of web form layout on mental workload
topic Mental workload; web forms; usability; functional near-infrared spectroscopy; fNIRS
url https://eprints.nottingham.ac.uk/31334/
https://eprints.nottingham.ac.uk/31334/