Yuko Yotsumoto, Ph.D.

Principal Investigator

Dr. Yotsumoto is an associate professor in the Department of Life Sciences, Graduate School of Arts and Sciences, the University of Tokyo. Prior to her current position, she worked at Keio University, Massachusetts General Hospital and Boston University. She earned her PhD in psychology in 2005 at Brandeis University.

Graduate Students

Hiroshi Yoshimatsu

Doctoral Student

We can perceive the information from the outside world by processing it through our sensory organs and extracting only the necessary information. I am interested in how our brains determine which information gets processed further. Currently, I am focusing on the phenomenon of visual stimuli distorting duration perception and investigating the stages of processing in relation to time perception by using psychophysical methods.

Elisa M.Gallego-Hiroyasu

Doctoral Student

Without a clock, we are capable of timing our daily schedule or even keeping track of the seconds of our lives to synchronize movements to the sensory stimuli around us. But how do we do that? Not much is known about the function of specific brain areas implicated in timing and therefore, I am further exploring the roles of the cerebellum and basal ganglia in explicit and implicit sub-second rhythmic timing by working with patients with Parkinson' s disease.

Luhe Li

Doctoral Student

Perception is plastic. We knew it, but how about the plasticity of time? I am interested in how time perception is shaped in the interaction with the environment, how perceptual learning can improve or distort it, and how the neural correlates of the timing system functions and changes in this process. I use psychophysical experiments, Bayesian modelling, EEG and fMRI to answer these questions.

Teruaki Kido

Master's Student

In the environment, there are a lot of visual or auditory stimuli and the characteristics of these stimuli gets processed in our brain. Sometimes, these have temporal information, and we can process the temporal information embedded in the stimuli. I am currently exploring how we can process multiple intervals simultaneously by using behavioral tasks since I am interested in the properties of neural system for interval processing.

Wei Chen

Master's Student

How do we understand what is a “goal”, a “method” or “time”? I am interested in exploring how the neural representation of semantic, verbal and sensory information connects to the understanding of a concept in our brain. Is it just clusters of information, how are they organized, and finally, can we reproduce it in a silicon chip?

Taku Otsuka

Master's Student

We receive various sensory information through sensory organs and behave through processing them in the brain. However, there is no specific sensory organ for the perception of elapsed time. Considering the time perception may be deeply related to multisensory information integration including the somatosensory system, I’m planning to conduct research using psychophysical methods and virtual reality devices.

Syogo Sugiyama

Master's Student

A human brain is a sophisticated calculator which can process overwhelming amount of information, but it sometimes makes mistakes such as optical illusion. I am interested in this functional relationships between an objective fact and a subjective perception, so I study psychology and neuroscience. Now I am focusing on the ability of brains to integrate a lot of information iuput from various modalities like time perception and sense of agency, and trying to unveil the nature of human brains.

Undergraduate Student

Tamaka Harada

4th Year Student

In the subjective world of mine, my consciousness exists, whereas I cannot say for sure yours exists, which makes “me” unique and special to me. Many research findings have also supported the claim that humans’ representation of the self is “special” and realized by systems that are distinct from those used for more general purposes. I seek to study neural underpinnings and evolutionary history of the human brain’s ability to distinguish self from others through behavioral experiments and functional neuroimaging techniques.

Hana Hinohara

4th Year Student

“Time flies while you are having fun.” Our time perception depends on the environment. I’m interested in the situation which influences the time perception and the brain activity while such changes happens. I’m planning to investigate by using behavioral tasks and stimulators.

Graduate research student

Amirmahmoud Houshmand Chatroudi

graduate research student

Brain is a multi-gear oscillatory machine: different modes of cognitive process summon different activation patterns across neural ensembles near and far. In my research, I seek to answer how brain's oscillatory structure enables our integrated cognition by investigating its role in transmission of sensory information, spatial and temporal perception, and storage of memory traces. EEG, tACS and fMRI are the main methodologies I use to answer this question.


post-doctoral research fellow

Koichi Toida

post-doctoral research fellow

Why can we recognize that the sound of the clap we make is made by ourselves? There are time differences depending on modality for external events to reach the brain, such as differences in the speed of sound or light, and the speed required to convert to neural signals at each sensory receptor. However, we integrate information with time lags and perceive the clapping as something we did. I am investigating the mechanism for achieving such a multi-sensory integration process using experimental psychological methods.