Presentation 2009-11-13
A response waveform analysis for pupillary light reflex
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) The waveforms of Pupillary Light Reflex (PLR) affecting retinal ganglion cells can be analyzed for a diagnostic test. For those analysis, quantitative comparison metrics for waveform shapes using Discrete Fourier Transform (DFT) descriptors (FDs) are proposed, and another procedure for emphasizing stimuli and subject differences using MultiDimensional Scaling (MDS) and clustering, where dissimilarities between stimuli are defined using descriptors as waveform features. To determine the efficiency of the procedures, a set of PLR data from a conventional experiment for the determination of a melanopsin-associated photoreceptive system was analyzed, both characteristics of stimuli and subjects were quantitatively extracted using the proposed procedures. Additionally, PLR is decomposed and analyzed those features using Independent Component Analysis (ICA).
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Pupil Light Reflex / Waveforms / Fourier Descriptor / Multidimensional Scaling / Independent Component Analysis
Paper # MBE2009-67
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Conference Information
Committee MBE
Conference Date 2009/11/5(1days)
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Paper Information
Registration To ME and Bio Cybernetics (MBE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A response waveform analysis for pupillary light reflex
Sub Title (in English)
Keyword(1) Pupil Light Reflex
Keyword(2) Waveforms
Keyword(3) Fourier Descriptor
Keyword(4) Multidimensional Scaling
Keyword(5) Independent Component Analysis
1st Author's Name Minoru NAKAYAMA
1st Author's Affiliation CRADLE, Tokyo Institute of Technology()
2nd Author's Name Wioletta NOWAK
2nd Author's Affiliation Wroclaw University of Technology
3rd Author's Name Hitoshi ISHIKAWA
3rd Author's Affiliation Department of Ophthalmology, Kitasato University
4th Author's Name Ken ASAKAWA
4th Author's Affiliation Department of Ophthalmology, Kitasato University
Date 2009-11-13
Paper # MBE2009-67
Volume (vol) vol.109
Number (no) 279
Page pp.pp.-
#Pages 6
Date of Issue