| Project/Area Number |
20K14252
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 10040:Experimental psychology-related
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| Research Institution | Kyoto University (2023)
Okayama University (2020-2022) |
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Principal Investigator |
李 キ (菊野優月) 京都大学, 人と社会の未来研究院, 特定研究員 (30757711)
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| Project Period (FY) |
2020-04-01 – 2025-03-31
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| Project Status |
Granted (Fiscal Year 2023)
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| Budget Amount *help |
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | estimation / color / bias / visual attention / capacity / counting / attention / pre-cue / numerosity estimation |
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| Outline of Research at the Start |
The ability to perceive and manipulate numbers supports our actions in various daily tasks. Elucidating factors influencing numerical cognition is important both theoretically and practically. This research aims to reveal attentional factors affecting counting and numerosity estimation performance.
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| Outline of Annual Research Achievements |
Experiments were conducted to investigate how object color influences numerosity estimation. Results revealed an increase in estimated values with eight colors, suggesting a tendency to perceive larger quantities with more colors present. Notably, there was no difference between the 4-color and 1-color conditions, indicating a bias emerging with over four colors. This may relate to the capacity limit of visual attention, which is typically around four items. In my experiments, it is plausible that four colors are distinctly perceived, thus not leading to a numerical bias. However, with eight colors, attention capacity is overwhelmed, resulting in an impression of a large variety of colors. Consequently, observers perceived 8-color displays as more numerous compared to 1-color displays.
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| Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
Progress has been made in understanding how object color impact numerosity estimation. Specifically, I identified a numerical bias in perceiving displays with multiple colors as more numerous compared to displays with a single color. Furthermore, I also discovered a boundary for this numerical bias: it appears that this bias emerges with more than four colors. This aligns with the limit of visual attention capacity, which is typically around four items. These findings shed new lights on the role of visual features in numerical perception.
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| Strategy for Future Research Activity |
The experiments for the current research project have concluded, and the data analysis has unveiled theoretically significant findings. As I look forward to the upcoming academic year, my primary focus will be on drafting academic papers and disseminating my research outcomes in esteemed scholarly journals. Furthermore, I am dedicated to showcasing my work at prominent academic conferences, both domestically and internationally. Participating in and presenting my research at these conferences will be instrumental in elevating the caliber of my papers and shaping the trajectory of my future research pursuits. Consequently, I am committed to actively participating in academic conferences throughout the coming academic year.
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