Researches in hypersensitivity
Researches in body image


July, 19, 2018
Our research about the relashionship between hypsesensitivity and temporal resolution to tactile stimuli in individuals with ASD was opend in Journal of Autism and Divelopmental Disorders.WebsiteNEW
July, 1, 2017
I was assigned to Research Institute of National Rehabilitation Center for Persons with Disabilities as a Permanent Researcher.
April, 7, 2017
Our research which showed the relationship between salivary oxytocin concentration and the subjective feeling of the rubber hand illusion was published in frontiers in human neuroscience.Website
22, Nov, 2016
Our reseach which investigated neural circuites of touch-induced visual suppression was published in Scientific Reports.Website
26, Oct, 2016
Our reseach which reported "rubber tail illusion" in mice which is a homology of the rubber hand illusion in human was published in The Journal of Neuroscience(JNS)Website
28, Aug, 2016
We have three presentations in the Society for Neuroscience on Novenber, 12-16 in Sandiego, USA.

Research Content

 It has been focused on problems in social communication to other persons in Autism-spectrum disorders (ASD). Rrecently, hyper-/hypo-sensitivity come to be also regarded to an important aspect of such a phenotype. To reveal neural basis of the sensory features of them, we are using psychophysical or neuroscientific methods for individuals with ASD and autism-model mice.

Research in hyper-/hypo-sensitivity in ASD

 Indivisuals with ASD have distress to wear closes which are made from specific materials (Hypersensitivity), in contrast, have tendency to like sensation to be wrapped by material or clothes (Hyposensitivity or Seeking). So far, some previous studies have reported that decreased detection threshold and enhanced amplitudes of brain wave relating somatosensory processing to tactile stimuli. However, how neurophysiological basis are underling on these features in behavior and neural activation have been unclear. We are investigating that enhanced firing rate of neural activity resuts in both enhanced temporal resolution and hypersensitivity to sensory stimuli in indivisuals with ASD.

Relationship between hypersensitivity and temporal resolution

  • 2016〜2018年(Principal Investigater: Masakazu Ide)
    The Science of Mental Time: investigation into the past, present, and future: Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area) Relationship between hypersensitivity to touch and excess tactile temporal resolution in individuals with autism-spectrum disorders(Project/Area Number: 16H01520

  • Research in body image

     In order that we identify ourselves body as our own's one, integration between somatosensory and visual information are essential factor. This body image, however, has been known to be disturbed in individuals with ASD; they often confuse left/right of their body position and hit their body to obstacles. It has suggested that these disturbed body image may be derived from their excess reliance on their somatosensory information compared with visual one. We are studing underlying neural mechanisms of these features in body image.

    RHI exp

  • Ide, M & Wada, M (2016) Periodic visuotactile stimulation slowly enhances the rubber hand illusion in individuals with high autistic traits. frontiers in integrative neuroscience10(21).Website
  • Ide, M (2013) The effect of "anatomical plausibility" of hand angle on the rubber hand illusion. Perception, 42(1), 103-111.Website