Development of a Procedure for Detecting Dementia Symptoms Using Features in Differential Waveforms of the Pupil Light Reflex

Minoru Nakayama, Wioletta Nowak, Anna Żarowska

2025

Abstract

A procedure for detecting dementia levels is developed using features of waveform shapes of the pupillary light reflex (PLR) in response to chromatic light pulses on either eye. Features of waveform shapes were extracted using a functional data analysis technique which measured the reactions of both eyes. In considering the physiological mechanism, differential waveform shapes were also analysed. The feature was extracted as a coefficient of B-spline basis functions of the waveforms. The feature sets of the differential waveform shapes for blue and red light pulses contributed to detection performance. Also, feature weights are used to represent PLR reaction mechanisms and differences in response to chromatic stimuli.

Paper Citation

in Harvard Style

Nakayama M., Nowak W. and Żarowska A. (2025). Development of a Procedure for Detecting Dementia Symptoms Using Features in Differential Waveforms of the Pupil Light Reflex. In Proceedings of the 18th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1: BIOSIGNALS; ISBN 978-989-758-731-3, SciTePress, pages 943-948. DOI: 10.5220/0013244400003911

in Bibtex Style

@conference{biosignals25,
author={Minoru Nakayama and Wioletta Nowak and Anna Żarowska},
title={Development of a Procedure for Detecting Dementia Symptoms Using Features in Differential Waveforms of the Pupil Light Reflex},
booktitle={Proceedings of the 18th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1: BIOSIGNALS},
year={2025},
pages={943-948},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0013244400003911},
isbn={978-989-758-731-3},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 18th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1: BIOSIGNALS
TI - Development of a Procedure for Detecting Dementia Symptoms Using Features in Differential Waveforms of the Pupil Light Reflex
SN - 978-989-758-731-3
AU - Nakayama M.
AU - Nowak W.
AU - Żarowska A.
PY - 2025
SP - 943
EP - 948
DO - 10.5220/0013244400003911
PB - SciTePress