| Presentation | 2009-11-13 A response waveform analysis for pupillary light reflex Minoru NAKAYAMA, Wioletta NOWAK, Hitoshi ISHIKAWA, Ken ASAKAWA, |
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| PDF Download Page |  PDF download Page Link |
| 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 |
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| Conference Date | 2009/11/5(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | ME and Bio Cybernetics (MBE) |
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| 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 | |