| Project/Area Number |
12610090
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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 |
実験系心理学
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| Research Institution | Tohoku-Gakuin University |
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Principal Investigator |
TADA Hideoki Tohoku-Gakuin University, Department of Psychology, Professor (90045675)
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| Co-Investigator(Kenkyū-buntansha) |
TAKAHASHI Yasuo Tohoku Gakuin University, Department of Biology, Professor (90004671)
AIKAWA Toshiki Tohoku Gakuin University, Department of Physics, Professor (10221029)
SUGIYAMA Toshiko Tohoku University School of Medicine, Department of Health Care, Associate Professor (90271957)
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| Project Period (FY) |
2000 – 2002
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| Project Status |
Completed (Fiscal Year 2002)
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| Budget Amount *help |
¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 2002: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2001: ¥600,000 (Direct Cost: ¥600,000)
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| Keywords | eyeblinks / measures of blinks / life long development / normative value / synchrony of both eyelids / temporal distribution / sole blink rate / flurry / 瞬目 / 系統発生 / 個体発生 / 性差 / 個体差 / 眼瞼の発生 / 眼瞼の比較 |
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| Research Abstract |
We conducted two experiments to establish quantitative parameters for various measures of endogenous blink activity across different age and gender groups. The first experiment tested participants aged between 3 months and 4 years and the second tested participants aged between 5 and 93 years. For children aged between 3 months and 4 years we video-recorded and examined blinking behavior under quiet resting conditions with no stimulation. For participants aged between 5 and 93 years, we examined the blinking behavior of the older groups while viewing a video stimulus. The results revealed that younger participants blinked less frequently than older participants, with blink rate increasing gradually up to 9 years of age. Some differences in blink rate and blink wave attributes were found between the three youngest age groups (aged under 4 years). Experiment 2 revealed no significant differences in blink rate among the adult age groups (over 20 years old). In addition, we found no significant differences in the duration of closing, reopening, or total blink duration between age groups or genders, except in the three groups aged under 4 years. We found the three types of blink frequency and tested associations between blinks and head movements, flurry incidence, side superiority of eyelids and the temporal distribution of blinks.
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