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Authors: Christoph Strauch ; Juliane Georgi ; Anke Huckauf and Jan Ehlers

Affiliation: Ulm University, Germany

Keyword(s): Pupillometry, Trend, Filter-Algorithm, Signal-Analysis, Trend Removal, Long Term Recording.

Related Ontology Subjects/Areas/Topics: Biosignal Acquisition, Analysis and Processing ; Human-Computer Interaction ; Methodologies and Methods ; Physiological Computing Systems

Abstract: As of recently, research efforts are intensified to operationalize pupil dynamics for cognitive and affective classification in human-machine interaction. However, signal analysis of pupil diameter changes is problematic since the respective dynamics consist of three essential components that have to be disentangled: Very slow diameter changes, slow and high frequencies. The current paper discusses the amount of slow trends in pupillary signal courses and the effects on functional parameters of pupil dilations. Thereby we confront our data with linear detrending approaches and reveal various forms of trend progressions that differ over time and cannot be fixed with conventional linear procedures.

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Paper citation in several formats:
Strauch, C.; Georgi, J.; Huckauf, A. and Ehlers, J. (2015). Slow Trends - A Problem in Analysing Pupil Dynamics. In Proceedings of the 2nd International Conference on Physiological Computing Systems - PhyCS, ISBN 978-989-758-085-7; ISSN 2184-321X, pages 61-66. DOI: 10.5220/0005329400610066

@conference{phycs15,
author={Christoph Strauch. and Juliane Georgi. and Anke Huckauf. and Jan Ehlers.},
title={Slow Trends - A Problem in Analysing Pupil Dynamics},
booktitle={Proceedings of the 2nd International Conference on Physiological Computing Systems - PhyCS,},
year={2015},
pages={61-66},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005329400610066},
isbn={978-989-758-085-7},
issn={2184-321X},
}

TY - CONF

JO - Proceedings of the 2nd International Conference on Physiological Computing Systems - PhyCS,
TI - Slow Trends - A Problem in Analysing Pupil Dynamics
SN - 978-989-758-085-7
IS - 2184-321X
AU - Strauch, C.
AU - Georgi, J.
AU - Huckauf, A.
AU - Ehlers, J.
PY - 2015
SP - 61
EP - 66
DO - 10.5220/0005329400610066

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