Investigation into across-channel processing in vision
| Project/Area Number |
16K00208
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Cognitive science
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| Research Institution | Kyushu University |
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Principal Investigator |
Hirose Nobuyuki 九州大学, システム情報科学研究院, 助教 (40467410)
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| Project Period (FY) |
2016-10-21 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 視覚 / チャンネル間処理 / 時間間隙 / 空間周波数 / 方位 / 時間分解能 / 両眼視野闘争 / 感覚・知覚 / 見落とし / 心理物理学 |
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| Outline of Final Research Achievements |
In the present study, on the basis of analogy between human visual and auditory systems, we investigated whether the decrement in temporal resolution, which has been found in auditory gap detection and is thought to be due to across-channel processing, is also obtained in visual temporal gap detection. Specifically, we examined the effect of spatial frequency or orientation difference between temporal markers (Gabor stimuli) on sensitivity of a temporal gap delimited by the two markers. We found that temporal gaps bounded by different frequency/orientation markers are more difficult to see than those bounded by identical frequency/orientation markers. These results suggest that across-channel processing in both spatial frequency and orientation domains degrades visual temporal resolution.
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| Academic Significance and Societal Importance of the Research Achievements |
聴覚無音検出において無音前後の音の特徴が異なる場合には時間分解能の低下（無音検出閾値の上昇）が認められることが知られてきた．本研究では，視覚における時間間隙検出においても，間隙前後の刺激の空間周波数が異なる場合や方位が異なる場合に，同様の時間分解能の低下（時間間隙検出閾値の上昇）が観察されることを明らかにした．本研究成果は，視覚と聴覚というモダリティの違いを超越して作用するヒト情報処理の共通原理が存在する可能性を示す．
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Report
(5 results)
Research Products
(25 results)
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[Presentation] Searching for a measure of auditory temporal resolution: Preliminary data2018
Author(s)
Mori, S., Aratake, R., Fujisaka, Y., Morimoto, T., Ito, K., Tamura, S., & Hirose, N.
Organizer
The 34th Annual Meeting of the International Society for Psychophysics (Fechner Day 2018)
Related Report
Int'l Joint Research
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[Presentation] Within- and between-frequency gap duration discrimination as a function of the standard duration2016
Author(s)
Cho, H., Ito, K., Hirose, N., & Mori, S.
Organizer
The 5th Joint Meeting of the Acoustical Society of America and the Acoustical Society of Japan
Place of Presentation
Hilton Hawaiian Village Waikiki Beach Resort, Honolulu, Hawaii, USA
Year and Date
2016-11-28
Related Report
Int'l Joint Research
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[Presentation] Relationship between voicing perception and auditory brainstem responses to stop consonants2016
Author(s)
Tamura, S., Ito, K., Hirose, N., & Mori, S.
Organizer
The 5th Joint Meeting of the Acoustical Society of America and the Acoustical Society of Japan
Place of Presentation
Hilton Hawaiian Village Waikiki Beach Resort, Honolulu, Hawaii, USA
Year and Date
2016-11-28
Related Report
Int'l Joint Research
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