28/10/2026
【心理學系專題講座】Department of Psychology Academic Seminar
Adaptation to imperceptible motion links size and duration compression
📅 日期時間 Date & Time
2026年11月3日 (二) 10:00 – 11:30 (含 Q&A)
📍 地點 Venue
愛徒樓 C301 教室
🗣 演講語言 Language
英文 English
🏛 主辦單位 Organizer
心理學系 (Department of Psychology)
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講者介紹 Speaker Profile
佐良土 晟 博士 (Dr. Akira Sarodo)
立命館大學 OIC 綜合研究機構 特別研究員
現職：立命館大學 OIC 綜合研究機構 特別研究員 (Postdoctoral Researcher, Ritsumeikan University)（2024–現在）
經歷：諾丁漢大學 心理學系 訪問學者 (Visiting Scholar, Department of Psychology, University of Nottingham)（2024）
學歷：早稻田大學 基幹理工學研究科 表現工學專攻 博士 (Ph.D. in Expression Engineering, Waseda University)（2021–2024）
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演講摘要
While spatial and temporal processes are notionally independent, separate lines of research on visual adaptation suggest a potential commonality: adaptation targeting the magnocellular visual pathway can compress both perceived space and time. Here we used an individual differences approach to evaluate the relationship between space and time compression. In the present study, we measured the correlation between size and duration compression after adaptation to a range of temporal frequencies. Importantly, to equalise the strength of temporal frequency adaptation effects for both perceived duration and size experiments, we used an identical adaptor in both tasks. We found that size compression was evident at all temporal frequencies and was weakest at 60 Hz, whereas the duration compression was observed only at high frequencies including 10 Hz, 20 Hz and 60 Hz. We also found a significant correlation between size and duration compression at 60 Hz. In a second experiment with a larger sample size, , 60 Hz adaptation reduced both size and duration PSEs relative to non-adaptation baseline, and the two baseline-corrected shifts were positively associated. These results show that size and duration shifts covary after 60 Hz adaptation and are consistent with a shared adaptation-related contribution to both effects. The correlation observed after 60 Hz adaptation is consistent with the involvement of the magnocellular pathway in modulating the perception of both metric space and time in vision.
