視覚や聴覚と異なり、「時間」の知覚には、特定の感覚器がありません。時間知覚がどのような神経活動に基づいて実現されるのか、行動実験、シミュレーション、脳機能計測などを用いて検証しています。

Unlike vision or audition, the perception of time does not rely on a dedicated sensory organ. We investigate the neural activity underlying time perception using behavioral experiments, computational simulations, and measurements of brain function.

related articles：
Takahashi, R., Takayama, Y., & Yotsumoto, Y. (2025) Effect of Temporal Modulation of Tactile Stimulus on Time Perception. Timing & Time Perception

Houshmand Chatroudi, A., & Yotsumoto, Y. (2023)

No evidence for the effect of entrainment's phase on duration reproduction and precision of regular intervals European Journal of Neuroscience, 58(4), 3037–3057.

Chaumon, M., et al. (2022)

The Blursday database as a resource to study subjective temporalities during COVID-19 Nature Human Behavior, 6(11), 1587–1599.

視覚や聴覚の知覚が、それまでの経験にいかに影響を受けるかを、ベイズ理論を用いて検証しています。
We investigate how sensory perception—including vision and audition—is influenced by prior experience, using Bayesian theory.

related articles：
Otsuka, T., Yotsumoto, Y., & Mioni, G. (2023)
Explicit Timing Differently Predicts Implicit Timing Performance in Younger and Older Adults
Timing & Time Perception.

Otsuka, T., & Yotsumoto, Y. (2023)

Near-optimal integration of the magnitude information of time and numerosity

Royal Society Open Science, 10(8), 230153.

複数の知覚情報を同時に処理する際、それらの情報は並列的に処理された後、統合されます。その並列処理の速度比較、同期的神経活動の機能、処理間の相互作用、統合のタイミング等を検証する研究をおこなっています。

When multiple sources of perceptual information are processed simultaneously, they are first processed in parallel and then integrated. We study this process by examining differences in the speed of parallel processing, the role of synchronized neural activity, interactions between processing streams, and the timing of integration.

related articles：
Kido, T., Yotsumoto, Y., & Hayashi, M. J. (2025)

Hierarchical representations of relative numerical magnitudes in the human frontoparietal cortex

Nature Communications, 16(1), 419.

Houshmand Chatroudi, A., & Yotsumoto, Y. (2023)

No evidence for the effect of entrainment's phase on duration reproduction and precision of regular intervals

European Journal of Neuroscience, 58(4), 3037–3057.

明るい光や騒音を不快に感じる感覚やその個人差について、生理指標との関連を含めて検証しています。

We investigate discomfort caused by bright light and noise, including individual differences, and how these experiences relate to physiological measures.