2007 Fiscal Year Final Research Report Summary
Blink activities during multiple vigilance tasks with memory loads.
| Project/Area Number |
18530565
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Experimental psychology
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| Research Institution | Fukuoka Prefectural University |
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Principal Investigator |
FUKUDA Kyosuke Fukuoka Prefectural University, Department of Human Development & Education, Professor (30173347)
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| Co-Investigator(Kenkyū-buntansha) |
SHIDOJI Kazunori Kyushu University, Faculty of Information Science and Electrical Engineering, Associate Professor (50243853)
MATSUO Takashi University of Kitakyushu, Department of Human Relations, Professor (70229425)
HAYAMI Takehito Kyushu University, Digital Medicine Initiative, Assistant Professor (60364113)
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| Project Period (FY) |
2006 – 2007
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| Keywords | Eveblink / Temnoral Distribution of Blinks / Selective Attention / Vieilance task / Central & Peripheral location of visual stimulus / ISI (Inter-Stimulus Interval |
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| Research Abstract |
This research examined eye blinking activity relative to central and peripheral stimuli presented at different Inter Stimulus Intervals (ISI). Blinking occurs most frequently immediately after the presentation of stimuli (Fukuda, 2006). These concentrations are independent of stimulus duration at ISI of 1, 500 ms or more. What is not yet known is how stimulus location and ISI affect blinking occurrence. If it is susceptible to changes in stimulus location or ISI, the relationship between blinking and selective attention will become more apparent We therefore examined shifts in blinking patterns when detecting single digits in either central or peripheral locations at 3 different ISI.
The experiment presented 1, 440 single digit numbers from 0 to 9 in a discrete sequence of 200 ms duration as a vigilance task The digits appeared on a computer display in either a central or peripheral location and at 200, 400, or 800 ms ISI. The digit 1 was presented with a frequency of 0.2, and participa
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nts were required to press a key as quickly as possible upon its detection. By using a camera attached to a helmet, every instance of blinking from 1000 ms before stimulus onset to 2,000 ms thereafter was counted, and data was collected from all 6 possible permutations of the 2 scenarios and 3 ISI. This data was then converted into graphs showing the Temporal Distribution of Blinks (TDB) and, by extension, the change in blink probability from stimulus onset.
When the stimulus was centrally located, the TDB at shorter LSI of 200 and 400 ms revealed the peak in eye blinking probability following the target stimulus only. By contrast, the longest ISI (800 ms) showed the peak in eye blinking probability following any kind of centrally located stimulus. With peripheral stimuli, eye blinking frequency was reduced at the shorter ISI of 200 and 400 ms. There were also no peaks pertaining to no key being pressed at these shorter ISI, suggesting that the target stimulus was intermittently going unnoticed. Such peaks were however apparent following any kind of peripherally located stimuli at the longest ISI of 800 ms.
These results suggest that, while eye blinking is apt to occur immediately after any stimulus at ISI of 800 ms, it is almost exclusively post-detection of the target stimulus at ISI of 200 and 400 ms. This leads to the conclusion that peaks in blink probability may be related to selective attention. Less
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[Presentation] Blink Duration to Arabic Digit and English Number2008
Author(s)
Kyosuke, Fukuda, Saori, Kodama, Takehito, Hayami, Kazunori, Shidoji, Takashi, Matsuo
Organizer
The 16th Eyeblink Conference
Place of Presentation
Osaka, Japan
Year and Date
2008-03-24
Description
「研究成果報告書概要(欧文)」より
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[Presentation] Development of blink detection system using image processing2008
Author(s)
Kazunori, Shidoji, Yuji, Matsuki, Kyosuke, Fukuda, Takehito, Hayami, Takashi, Matsuo
Organizer
The 16th Eyeblink Conference
Place of Presentation
Osaka, Japan
Year and Date
2008-03-23
Description
「研究成果報告書概要(欧文)」より
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[Presentation] During Gazing at Central Stimuli2007
Author(s)
Kyosuke, Fukuda, Takehito, Hayami, Kazunori, Shidoji, Takashi, Matsuo, Endogenous, Blinks
Organizer
The 71th Conference of Japanese Psychological Association
Place of Presentation
Tokyo, Japan
Year and Date
2007-09-18
Description
「研究成果報告書概要(欧文)」より
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[Presentation] Assessment of Performance of a Simple Tachistscope2006
Author(s)
Takehito, Hayami, Kazunori, Shidoji, Keiji, Iramina, Kyosuke, Fukuda
Organizer
The 2nd Conference of Visualization of Bio Information in Japanese Society for Medical and Biological Engineering
Place of Presentation
Fukuoka, Japan
Year and Date
2006-12-27
Description
「研究成果報告書概要(欧文)」より
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[Presentation] 刺激認知と瞬目発生2006
Author(s)
福田 恭介
Organizer
日本心理学会第70回大会
Place of Presentation
九州大学
Year and Date
2006-11-05
Description
「研究成果報告書概要(和文)」より
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