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Authors: Yongqiang Lyu 1 ; Tianshu Yang 2 ; Xiaomin Luo 3 ; Chun Yu 2 ; Lei Wang 3 and Yuanchun Shi 2

Affiliations: 1 RTsinghua National Laboratory for Information Science and Technology and Tsinghua University, China ; 2 RTsinghua National Laboratory for Information Science and Technology, China ; 3 BGI (Wuhan) Translational Research Center, China

Keyword(s): Photoplethysmography, Mental Effort, Psychophysiology Approach, Sensors-based Applications.

Related Ontology Subjects/Areas/Topics: Biomedical Engineering ; Health Information Systems ; Physiological Modeling ; Practice-based Research Methods for Healthcare IT ; Sensors-Based Applications

Abstract: Recent studies have shown a close relationship between the mental effort and the photoplethysmograms (PPG), but lack an index which can analyze the invested mental effort quantitatively during the cognitive tasks, which is notable for evaluating user experience in ubiquitous scenarios. In this study, we propose the stress-induced vascular response index (sVRI) to quantify the mental effort invested in cognitive tasks, and verify it via the experiments on aritehmatic tasks with different difficulty levels. The results show an outstanding correlation between the sVRI and the task difficulties, which suggests a dose-response of the sVRI when users perform different cognitive tasks with different difficulties. This is useful for evaluating the user experience in performing cognitive tasks to guide the task or the interaction designs.

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Paper citation in several formats:
Lyu, Y.; Yang, T.; Luo, X.; Yu, C.; Wang, L. and Shi, Y. (2014). Quantitative Analysis of Mental Effort Investment using Photoplethysmogram. In Proceedings of the International Conference on Health Informatics (BIOSTEC 2014) - HEALTHINF; ISBN 978-989-758-010-9; ISSN 2184-4305, SciTePress, pages 166-171. DOI: 10.5220/0004732001660171

@conference{healthinf14,
author={Yongqiang Lyu. and Tianshu Yang. and Xiaomin Luo. and Chun Yu. and Lei Wang. and Yuanchun Shi.},
title={Quantitative Analysis of Mental Effort Investment using Photoplethysmogram},
booktitle={Proceedings of the International Conference on Health Informatics (BIOSTEC 2014) - HEALTHINF},
year={2014},
pages={166-171},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004732001660171},
isbn={978-989-758-010-9},
issn={2184-4305},
}

TY - CONF

JO - Proceedings of the International Conference on Health Informatics (BIOSTEC 2014) - HEALTHINF
TI - Quantitative Analysis of Mental Effort Investment using Photoplethysmogram
SN - 978-989-758-010-9
IS - 2184-4305
AU - Lyu, Y.
AU - Yang, T.
AU - Luo, X.
AU - Yu, C.
AU - Wang, L.
AU - Shi, Y.
PY - 2014
SP - 166
EP - 171
DO - 10.5220/0004732001660171
PB - SciTePress

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