Masamichi J. Hayashi

Main Lab Location:

CiNet (Main bldg.)

Specific Research Topic:

time perception, numerical cognition, neuroimaging, brain stimulation, psychophysics

Other Affiliations:

JST PRESTO Researcher
Visiting Academic Staff, Graduate School of Frontier Biosciences, Osaka University.

Mailing Address:

1-4 Yamadaoka, Suita City, Osaka, 565-0871


m.hayashi at


Our perceptual experiences are created by our brains and do not necessarily correspond to the physical properties of the world. To clarify the mechanisms by which the human brain generates perceptual experiences, I am studying human brains using psychophysics and functional brain imaging techniques. Furthermore, I am trying to clarify the causal relationship between the brain and perception by investigating how the perceptual experience changes when magnetic or electric current stimulation is applied to the brain. In the future, our goal is to apply the findings from these studies to develop technologies that allow us to control our subjective senses at will and to create new perceptual experiences that we have never experienced before.

If you are a student or researcher who would like to do this type of research with us, please contact me.

Selected Publications:

Hayashi MJ, Ivry RB (2020) Duration selectivity in right parietal cortex reflects the subjective experience of time. The Journal of Neuroscience, 40(40): 7749–7758.

Hayashi MJ, van der Zwaag W, Bueti D, Kanai R (2018) Representations of time in frontoparietal cortex. Communications Biology, 1: 233.

Hayashi MJ, Ditye T, Harada T, Hashiguchi M, Sadato N, Carlson S, Walsh V, Kanai R (2015) Time adaptation shows duration selectivity in the human parietal cortex. PLoS Biology, 13(9): e1002262.

Hayashi MJ, Kanai R, Tanabe HC, Yoshida Y, Carlson S, Walsh V, Sadato N (2013) Interaction of numerosity and time in prefrontal and parietal cortex. The Journal of Neuroscience, 33(3): 883–893.

Hayashi MJ, Saito DN, Aramaki Y, Asai T, Fujibayashi Y, Sadato N (2008) Hemispheric asymmetry of frequency-dependent suppression in the ipsilateral primary motor cortex during finger movement: A functional magnetic resonance imaging study. Cerebral Cortex, 18(12): 2932–2940.

Lab Members:

・Natsuha Fujihara

・Masakazu Sugimoto
・Kohhei Hosoya