Ryuta Kawashima

ORCID: 0000-0002-6132-3861
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About
Contact & Profiles
Research Areas
  • Functional Brain Connectivity Studies
  • Neural dynamics and brain function
  • Advanced MRI Techniques and Applications
  • EEG and Brain-Computer Interfaces
  • Neurobiology of Language and Bilingualism
  • Heart Rate Variability and Autonomic Control
  • Advanced Neuroimaging Techniques and Applications
  • Reading and Literacy Development
  • Pulmonary Hypertension Research and Treatments
  • Action Observation and Synchronization
  • Non-Invasive Vital Sign Monitoring
  • Hemodynamic Monitoring and Therapy
  • Cardiovascular Function and Risk Factors
  • Language Development and Disorders
  • Psychosomatic Disorders and Their Treatments
  • Motor Control and Adaptation
  • Balance, Gait, and Falls Prevention
  • Neural and Behavioral Psychology Studies
  • Optical Imaging and Spectroscopy Techniques
  • Radiomics and Machine Learning in Medical Imaging
  • Visual perception and processing mechanisms
  • Virtual Reality Applications and Impacts
  • MRI in cancer diagnosis
  • Medical Imaging Techniques and Applications
  • Face Recognition and Perception

Tohoku University
2016-2025

Institute of Aging
2017-2023

Tohoku Institute of Technology
2019

Tokyo Future University
2016

Korea Institute of Brain Science
1997-2014

Tohoku University Hospital
2008

Hatch (Canada)
2003

Hirosaki University
2002

Fukuda Denshi (Japan)
2002

Shimizu (Japan)
2002

Motivated by the vast amount of information that is rapidly accumulating about human brain in digital form, we embarked upon a program 1992 to develop four–dimensional probabilistic atlas and reference system for brain. Through an International Consortium Brain Mapping (ICBM) dataset being collected includes 7000 subjects between ages eighteen ninety years including 342 mono– dizygotic twins. Data on each subject detailed demographic, clinical, behavioural imaging information. DNA has been...

10.1098/rstb.2001.0915 article EN Philosophical Transactions of the Royal Society B Biological Sciences 2001-08-29
Richard A. I. Bethlehem Jakob Seidlitz Simon R. White Jacob W. Vogel Karen Anderson and 95 more Chris Adamson Sophie Adler George S. Alexopoulos Evdokia Anagnostou Ariosky Areces-González Duncan E. Astle Bonnie Auyeung Muhammad Ayub Ji Hyun Bae Gareth Ball Simon Baron‐Cohen Richard Beare Saashi A. Bedford Vivek Benegal Frauke Beyer John Blangero Manuel Blesa James P. Boardman Matthew Borzage Jorge Bosch‐Bayard Niall Bourke Vince D. Calhoun M. Mallar Chakravarty C. Chen Casey Chertavian Gaël Chételat Yap Seng Chong James H. Cole Aiden Corvin Manuela Costantino Eric Courchesne Fabrice Crivello Vanessa Cropley Jennifer Crosbie Nicolás Crossley Marion Delarue Richard Delorme Sylvane Desrivières Gabriel A. Devenyi Maria A. Di Biase Raymond J. Dolan Kirsten A. Donald Gary Donohoe Katharine Dunlop A. David Edwards Jed T. Elison Cameron T. Ellis Jeremy A. Elman Lisa T. Eyler Damien A. Fair Eric Feczko Paul C. Fletcher Peter Fonagy Carol E. Franz Lídice Galán‐García Ali Gholipour Jay N. Giedd John H. Gilmore David C. Glahn Ian Goodyer P. Ellen Grant Nynke A. Groenewold Faith M. Gunning Ruben C. Gur R. C. Gur Christopher Hammill Oskar Hansson Trey Hedden Andreas Heinz R. N. Henson Katja Heuer Jacqueline Hoare Bharath Holla Avram J. Holmes Rosemary Holt Hao Huang K. Im Jonathan Ipser C. R. Jack Andrea Parolin Jackowski Tianye Jia K. A. Johnson Peter B. Jones D. T. Jones R. S. Kahn Hasse Karlsson Linnéa Karlsson Ryuta Kawashima Elizabeth W. Kelley S.J. Kern Ki Woong Kim Manfred G. Kitzbichler William S. Kremen François Lalonde Brigitte Landeau

Over the past few decades, neuroimaging has become a ubiquitous tool in basic research and clinical studies of human brain. However, no reference standards currently exist to quantify individual differences metrics over time, contrast growth charts for anthropometric traits such as height weight

10.1038/s41586-022-04554-y article EN cc-by Nature 2022-04-06

The authors describe the development of a four-dimensional atlas and reference system that includes both macroscopic microscopic information on structure function human brain in persons between ages 18 90 years. Given presumed large but previously unquantified degree structural functional variance among normal population, basis for this is probabilistic. Through efforts International Consortium Brain Mapping (ICBM), 7,000 subjects will be included initial phase database development. For each...

10.1136/jamia.2001.0080401 article EN Journal of the American Medical Informatics Association 2001-09-01

Group walking is a collective social interaction task as pedestrians are required to determine their own pace of on the basis surrounding others' states. The steady beat sound known be controllable factor that contributes relative success/failure coordinated group since improves pedestrian flow in congested situation. According some reports, inter-personal synchronizes brain activity prefrontal region, which supports cognitive processes for successful inter-individual coordination, such...

10.3389/fnhum.2017.00147 article EN cc-by Frontiers in Human Neuroscience 2017-03-27
Richard A. I. Bethlehem Jakob Seidlitz Simon R. White Jacob W. Vogel Karen Anderson and 95 more Chris Adamson Sophie Adler George S. Alexopoulos Evdokia Anagnostou Ariosky Areces-González Duncan E. Astle Bonnie Auyeung Muhammad Ayub Gareth Ball Simon Baron‐Cohen Richard Beare Saashi A. Bedford Vivek Benegal Frauke Beyer Ji-Hyun Bae John Blangero Manuel Blesa James P. Boardman Matthew Borzage Jorge Bosch‐Bayard Niall Bourke Vince D. Calhoun M. Mallar Chakravarty Chen Chen Casey Chertavian Gaël Chételat Yap Seng Chong James I. Cole Aiden Corvin Manuela Costantino Eric Courchesne Fabrice Crivello Vanessa Cropley Jennifer Crosbie Nicolás Crossley Marion Delarue Richard Delorme Sylvane Desrivières Gabriel A. Devenyi Maria A. Di Biase Raymond J. Dolan Kirsten A. Donald Gary Donohoe Katharine Dunlop A. David Edwards Jed T. Elison Cameron T. Ellis Jeremy A. Elman Lisa T. Eyler Damien A. Fair Eric Feczko Paul C. Fletcher Peter Fonagy Carol E. Franz Lídice Galán‐García Gholipour Sajjad Jay N. Giedd John H. Gilmore David C. Glahn Ian Goodyer P.E. Grant Nynke A. Groenewold Faith M. Gunning Raquel E. Gur R. C. Gur Christopher Hammill Oskar Hansson Trey Hedden Andreas Heinz Richard N. Henson Katja Heuer Jacqueline Hoare Bharath Holla Avram J. Holmes Rosemary Holt Hao Huang Kiho Im Jonathan Ipser Clifford R. Jack Andrea Parolin Jackowski Tianye Jia Keith A. Johnson Peter B. Jones D. T. Jones René S. Kahn Hasse Karlsson Linnea Karlsson Wirebring Ryuta Kawashima Elizabeth W. Kelley Silke Kern Ki Woong Kim Manfred G. Kitzbichler William S. Kremen François Lalonde Brigitte Landeau

Abstract Over the past few decades, neuroimaging has become a ubiquitous tool in basic research and clinical studies of human brain. However, no reference standards currently exist to quantify individual differences metrics over time, contrast growth charts for anthropometric traits such as height weight 1 . Here, we built an interactive resource benchmark brain morphology, www.brainchart.io , derived from any current or future sample magnetic resonance imaging (MRI) data. With goal basing...

10.1101/2021.06.08.447489 preprint EN cc-by-nc-nd bioRxiv (Cold Spring Harbor Laboratory) 2021-06-10

Creativity is hypothesized to arise from a mental state which balances spontaneous thought and cognitive control, corresponding functional connectivity between the brain's Default Mode (DMN) Executive Control (ECN) Networks. Here, we conduct large-scale, multi-center examination of this hypothesis. Employing meta-analytic network neuroscience approach, analyze resting-state fMRI creative task performance across 10 independent samples Austria, Canada, China, Japan, United States (N =...

10.1038/s42003-025-07470-9 article EN cc-by-nc-nd Communications Biology 2025-01-15

Abstract The aim of this study was to identify the neuroanatomical basis retrieval people's names. Lesion data showed that patients with language-dominant temporal lobectomy had impairments in their ability retrieve familiar and newly learned names, whereas language-nondominant difficulty retrieving Functional magnetic resonance imaging experiments revealed activations left polar region during right superior bilateral prefrontal cortices information from face cues. These provide new evidence...

10.1162/089892902760191144 article EN Journal of Cognitive Neuroscience 2002-08-01

REGIONAL cerebral blood flow was measured by positron emission tomography in seven subjects during reaching with saccade, without saccade and control tasks. The task activated two spatially distinct areas the contralateral intraparietal sulcus (IPS) compared condition. area located anterior part of IPS also but not task. other area, posterior was, contrast, active results indicate that human is functionally heterogeneous, functional roles its parts include movements eye movements, respectively.

10.1097/00001756-199605170-00006 article EN Neuroreport 1996-05-01

In this study, we investigated two aspects of verb processing: first, whether verbs are processed differently from nouns; and second, how verbal morphology is processed. For purpose, used functional magnetic resonance imaging to compare three types lexical processing in Japanese: the nouns, unmarked active verbs, inflected passive verbs. Twenty-eight healthy subjects were shown a item asked judge presented was legal word. Although all conditions activated bilateral inferior frontal,...

10.1162/jocn.2006.18.8.1304 article EN Journal of Cognitive Neuroscience 2006-07-21

Abstract In the companion article a local electrovascular coupling (LEVC) model was proposed to explain continuous dynamics of electrical and vascular states within cortical unit. These produce certain mesoscopic reflections whose discrete time series can be reconstructed from electroencephalography (EEG) functional magnetic resonance imaging (fMRI). this we develop recursive optimization algorithm based on linearization (LL) filter an innovation method make statistical inferences about LEVC...

10.1002/hbm.20278 article EN Human Brain Mapping 2006-08-24

The elucidation of the complex machinery used by human brain to segregate and integrate information while performing high cognitive functions is a subject imminent future consequences. most significant contributions date in this field, known as neuroscience, have been achieved using innovative neuroimaging techniques, such electroencephalogram (EEG) functional magnetic resonance imaging (fMRI), which measure variations both time space some interpretable physical magnitudes. Extraordinary...

10.1098/rstb.2005.1646 article EN Philosophical Transactions of the Royal Society B Biological Sciences 2005-05-29

The purpose of this study was to examine the beneficial effects a new cognitive intervention program designed for care and prevention dementia, namely Learning Therapy. training used systematized basic problems in arithmetic Japanese language as tasks. In 1, 16 individuals experimental group control were recruited from nursing home. both groups, all clinically diagnosed with senile dementia Alzheimer type. 2, we performed single-blind, randomized controlled trial our 124 community-dwelling...

10.3961/jpmph.2013.46.s.s22 article EN cc-by-nc Journal of Preventive Medicine and Public Health 2013-01-30

OBJECT Convection-enhanced delivery (CED) is an effective drug method that delivers high concentrations of drugs directly into the targeted lesion beyond blood-brain barrier. However, distribution attained using CED has not satisfactorily covered entire in tumors such as glioma. Recently, efficacy ultrasound assistance was reported for various applications. The authors developed a new ultrasound-facilitated (UFD) system enables application at infusion site. purpose this study to demonstrate...

10.3171/2015.3.jns142152 article EN Journal of neurosurgery 2015-10-24

Adults seem to have greater difficulties than children in acquiring a second language (L2) because of the alleged "window opportunity" around puberty. Postpuberty Japanese participants learned new English rule with simplex sentences during one month instruction, and then they were tested on "uninstructed complex sentences" as well "instructed sentences." The behavioral data show that can acquire more knowledge is instructed, suggesting interweaving nature (universal principles grammar, UG)...

10.1162/jocn.2011.21607 article EN Journal of Cognitive Neuroscience 2011-01-21

The auditory steady state response (ASSR) is an oscillatory brain response, which phase locked to the rhythm of stimulus. ASSRs have been recorded in a wide frequency range modulation and/or repetition, but physiological features are somewhat different depending on frequency. Recently, 20-Hz ASSR has emphasized clinical examinations, especially area psychiatry. However, little known about properties ASSR, compared those 40-Hz and 80-Hz ASSRs. effects contralateral noise depend evoke ASSR....

10.1371/journal.pone.0099457 article EN cc-by PLoS ONE 2014-06-10

The effects of oxygen availability on neurovascular coupling were investigated using simultaneous electroencephalography (EEG) and functional magnetic resonance imaging (fMRI), in addition to the monitoring physiological parameters, 16 α-chloralose-anesthetized rats. Mild hypoxic hypoxia (oxygen saturation=83.6±12.1%) induced significant reductions fMRI responses ( P<0.05) electrical stimulation forepaw, but EEG remained unchanged. In addition, changes saturation linearly correlated with...

10.1038/jcbfm.2012.111 article EN Journal of Cerebral Blood Flow & Metabolism 2012-07-25

Abstract Introduction How human brains acquire second languages (L2) is one of the fundamental questions in neuroscience and language science. However, it unclear whether first (L1) has a cross‐linguistic influence on processing L2. Methods Here, we used functional magnetic resonance imaging to compare brain activities during L2 word reading tasks phonographic J apanese Kana between two groups learners as their who had different orthographic backgrounds L1. For C hinese learners, L1 (Hanji)...

10.1002/brb3.153 article EN cc-by Brain and Behavior 2013-07-30
Natalie C. W. Ho Richard A. I. Bethlehem Jakob Seidlitz Nikita Nogovitsyn Paul D. Metzak and 95 more Pedro L. Ballester Stefanie Hassel Susan Rotzinger Jordan Poppenk Raymond W. Lam Valerie H. Taylor Roumen Milev Chris Adamson Sophie Adler Aaron Alexander‐Bloch Evdokia Anagnostou Kevin Anderson Ariosky Areces-González Duncan E. Astle Bonnie Auyeung Muhammad Ayub Jong Bin Bae Gareth Ball Simon Baron‐Cohen Richard Beare Saashi A. Bedford Vivek Benegal Richard A. I. Bethlehem Frauke Beyer John Blangero Manuel Blesa James P. Boardman Matthew Borzage Jorge Bosch‐Bayard Niall Bourke Edward T. Bullmore Vince D. Calhoun M. Mallar Chakravarty Christina Chen Casey Chertavian Gaël Chételat Yap Seng Chong Aiden Corvin Manuela Costantino Eric Courchesne Fabrice Crivello Vanessa Cropley Jennifer Crosbie Nicolás Crossley Marion Delarue Richard Delorme Sylvane Desrivières Gabriel A. Devenyi Maria A. Di Biase Raymond J. Dolan Kirsten A. Donald Gary Donohoe Lena Dorfschmidt Katharine Dunlop A. David Edwards Jed T. Elison Cameron T. Ellis Jeremy A. Elman Lisa T. Eyler Damien A. Fair Paul C. Fletcher Peter Fonagy Carol E. Franz Lídice Galán‐García Ali Gholipour Jay N. Giedd John H. Gilmore David C. Glahn Ian M. Goodyer P. Ellen Grant Nynke A. Groenewold Shreya Gudapati Faith M. Gunning Raquel E. Gur Ruben C. Gur Christopher Hammill Oskar Hansson Trey Hedden Andreas Heinz Richard N. Henson Katja Heuer Jacqueline Hoare Bharath Holla Avram J. Holmes Hao Huang Jonathan Ipser Clifford R. Jack Andrea Parolin Jackowski Tianye Jia David T. Jones Peter B. Jones René S. Kahn Hasse Karlsson Linnéa Karlsson Ryuta Kawashima

10.1016/j.bpsc.2024.04.008 article EN Biological Psychiatry Cognitive Neuroscience and Neuroimaging 2024-04-27
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