| Presentation | 2014-05-24 Estimation Method of Trait Anxiety by Frequency Analysis of Pupil Diameter Variation Yuki YAMAKAWA, Hironobu TAKANO, Kiyomi NAKAMURA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The physiological reaction as an objective indicator, which is used with questionnaire, is required for trait anxiety estimation. The previous study indicates that the high frequency component of heart rate variability (HF) would be used as the objective indicator of the trait anxiety estimation because the HF reflects the state of anxiety. However, ECG measurement is required to put electrodes on a body of a subject. On the other hand, the pupil diameter variation would be used for trait anxiety estimation because the pupillary movement which can be measured noninvasively is controlled by the parasympathetic and sympathetic nervous systems. In this paper, we develop the experimental system and preliminarily investigate the relationship between the pupil diameter variation and trait anxiety. In the experiment, the 30 anxiety stimulus images are sequentially presented to subjects at the intervals of 1.5 seconds. The dynamic images of their eyes are captured for measuring the pupil diameter. The LF/HF and HF/(LF+HF) are obtained by the frequency analysis of pupil diameter variation. From experimental results, LF/HF for the subject with high-trait anxiety is larger than that for the subject with low-trait anxiety. On the other hand, HF/(LF+HF) for the subject with low-trait anxiety is larger than that for the subject with high-trait anxiety. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Pupil diameter / Estimation method of trait anxiety / State-Trait Anxiety Inventory / Frequency analysis |
| Paper # | MBE2014-11 |
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| Conference Information | |
| Committee | MBE |
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| Conference Date | 2014/5/17(1days) |
| Place (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) | Estimation Method of Trait Anxiety by Frequency Analysis of Pupil Diameter Variation |
| Sub Title (in English) | |
| Keyword(1) | Pupil diameter |
| Keyword(2) | Estimation method of trait anxiety |
| Keyword(3) | State-Trait Anxiety Inventory |
| Keyword(4) | Frequency analysis |
| 1st Author's Name | Yuki YAMAKAWA |
| 1st Author's Affiliation | Toyama Prefectural University() |
| 2nd Author's Name | Hironobu TAKANO |
| 2nd Author's Affiliation | Toyama Prefectural University |
| 3rd Author's Name | Kiyomi NAKAMURA |
| 3rd Author's Affiliation | Toyama Prefectural University |
| Date | 2014-05-24 |
| Paper # | MBE2014-11 |
| Volume (vol) | vol.114 |
| Number (no) | 51 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |