Yoko Hoshi

Summary

Affiliation: Tokyo Institute of Psychiatry
Country: Japan

Publications

  1. ncbi Reevaluation of near-infrared light propagation in the adult human head: implications for functional near-infrared spectroscopy
    Yoko Hoshi
    Tokyo Institute of Psychiatry, Department of Integrated Neuroscience, 2 1 8 Kamikitazawa, Setagaya Ku, Tokyo 156 8585, Japan
    J Biomed Opt 10:064032. 2005
  2. doi Functional near-infrared spectroscopy: current status and future prospects
    Yoko Hoshi
    Tokyo Institute of Psychiatry, Integrated Neuroscience Research Team, 2 1 8 Kamikitazawa, Tokyo 156 8585, Japan
    J Biomed Opt 12:062106. 2007
  3. ncbi Resting hypofrontality in schizophrenia: A study using near-infrared time-resolved spectroscopy
    Yoko Hoshi
    Integrated Neuroscience Research Team, Tokyo Institute of Psychiatry, 2 1 8 Kamikitazawa, Setagaya Ku, Tokyo 156 8585, Japan
    Schizophr Res 84:411-20. 2006
  4. doi Recognition of human emotions from cerebral blood flow changes in the frontal region: a study with event-related near-infrared spectroscopy
    Yoko Hoshi
    Integrated Neuroscience Research Team, Tokyo Institute of Psychiatry, Tokyo, Japan
    J Neuroimaging 21:e94-101. 2011
  5. ncbi Spatiotemporal characteristics of hemodynamic changes in the human lateral prefrontal cortex during working memory tasks
    Yoko Hoshi
    Department of Integrated Neuroscience, Tokyo Institute of Psychiatry, Kamikitazawa 2 1 8, Setagaya Ku, Tokyo 156 8585, Japan
    Neuroimage 20:1493-504. 2003
  6. ncbi Functional near-infrared optical imaging: utility and limitations in human brain mapping
    Yoko Hoshi
    Department of Integrated Neuroscience, Tokyo Institute of Psychiatry, 2 1 8 Kamikitazawa, Setagaya Ku, Tokyo 156 8585, Japan
    Psychophysiology 40:511-20. 2003
  7. ncbi Interpretation of near-infrared spectroscopy signals: a study with a newly developed perfused rat brain model
    Y Hoshi
    Biophysics Group, Research Institute for Electronic Science, Hokkaido University, Sapporo 060 0812, Japan
    J Appl Physiol (1985) 90:1657-62. 2001
  8. ncbi Movement interference attenuates somatosensory high-frequency oscillations: contribution of local axon collaterals of 3b pyramidal neurons
    Masato Tanosaki
    Department of Integrated Neuroscience, Tokyo Institute of Psychiatry, 2 1 8 Kamikitazawa, Setagaya Ku, Japan
    Clin Neurophysiol 113:993-1000. 2002
  9. ncbi Attention induces reciprocal activity in the human somatosensory cortex enhancing relevant- and suppressing irrelevant inputs from fingers
    Yoshinobu Iguchi
    Department of Integrated Neuroscience, Tokyo Institute of Psychiatry, Japan
    Clin Neurophysiol 116:1077-87. 2005
  10. ncbi Selective attention regulates spatial and intensity information processing in the human primary somatosensory cortex
    Yoshinobu Iguchi
    Department of Integrated Neuroscience, Tokyo Institute of Psychiatry, 2 1 8 Kamikitazawa Setagaya ku Tokyo 156 8585, Japan
    Neuroreport 13:2335-9. 2002

Collaborators

Detail Information

Publications42

  1. ncbi Reevaluation of near-infrared light propagation in the adult human head: implications for functional near-infrared spectroscopy
    Yoko Hoshi
    Tokyo Institute of Psychiatry, Department of Integrated Neuroscience, 2 1 8 Kamikitazawa, Setagaya Ku, Tokyo 156 8585, Japan
    J Biomed Opt 10:064032. 2005
    ..These results indicate that the NIR signal is very sensitive to hemodynamic changes associated with functional brain activation in the case that changes in the extracerebral tissue are ignorable...
  2. doi Functional near-infrared spectroscopy: current status and future prospects
    Yoko Hoshi
    Tokyo Institute of Psychiatry, Integrated Neuroscience Research Team, 2 1 8 Kamikitazawa, Tokyo 156 8585, Japan
    J Biomed Opt 12:062106. 2007
    ..This review demonstrates the strengths and the advantages of NIRS, clarifies the problems, and identifies the limitations of NIRS measurements. Finally, its future prospects are described...
  3. ncbi Resting hypofrontality in schizophrenia: A study using near-infrared time-resolved spectroscopy
    Yoko Hoshi
    Integrated Neuroscience Research Team, Tokyo Institute of Psychiatry, 2 1 8 Kamikitazawa, Setagaya Ku, Tokyo 156 8585, Japan
    Schizophr Res 84:411-20. 2006
    ..This does not necessarily represent frontal dysfunction, but may reflect anatomical and/or functional changes in frontal microcirculation...
  4. doi Recognition of human emotions from cerebral blood flow changes in the frontal region: a study with event-related near-infrared spectroscopy
    Yoko Hoshi
    Integrated Neuroscience Research Team, Tokyo Institute of Psychiatry, Tokyo, Japan
    J Neuroimaging 21:e94-101. 2011
    ..The forehead region is easily accessible to NIRS measurements, whereas the role of the anterior prefrontal cortex (PFC) in the processing of emotion remains to be elucidated...
  5. ncbi Spatiotemporal characteristics of hemodynamic changes in the human lateral prefrontal cortex during working memory tasks
    Yoko Hoshi
    Department of Integrated Neuroscience, Tokyo Institute of Psychiatry, Kamikitazawa 2 1 8, Setagaya Ku, Tokyo 156 8585, Japan
    Neuroimage 20:1493-504. 2003
    ..The remaining 2 of the 12 participants had no regions commonly activated by these tasks. These results suggest that although the PFC is implicated in the CE, there is no stereotyped anatomical PFC substrate for the CE...
  6. ncbi Functional near-infrared optical imaging: utility and limitations in human brain mapping
    Yoko Hoshi
    Department of Integrated Neuroscience, Tokyo Institute of Psychiatry, 2 1 8 Kamikitazawa, Setagaya Ku, Tokyo 156 8585, Japan
    Psychophysiology 40:511-20. 2003
    ....
  7. ncbi Interpretation of near-infrared spectroscopy signals: a study with a newly developed perfused rat brain model
    Y Hoshi
    Biophysics Group, Research Institute for Electronic Science, Hokkaido University, Sapporo 060 0812, Japan
    J Appl Physiol (1985) 90:1657-62. 2001
    ....
  8. ncbi Movement interference attenuates somatosensory high-frequency oscillations: contribution of local axon collaterals of 3b pyramidal neurons
    Masato Tanosaki
    Department of Integrated Neuroscience, Tokyo Institute of Psychiatry, 2 1 8 Kamikitazawa, Setagaya Ku, Japan
    Clin Neurophysiol 113:993-1000. 2002
    ..We examined the effects of movement interference on high-frequency oscillations (HFOs) and N20m in 10 healthy subjects...
  9. ncbi Attention induces reciprocal activity in the human somatosensory cortex enhancing relevant- and suppressing irrelevant inputs from fingers
    Yoshinobu Iguchi
    Department of Integrated Neuroscience, Tokyo Institute of Psychiatry, Japan
    Clin Neurophysiol 116:1077-87. 2005
    ..We studied whether attention regulates information processing in the human primary somatosensory cortex (SI) by selective enhancement of relevant- and suppression of irrelevant information...
  10. ncbi Selective attention regulates spatial and intensity information processing in the human primary somatosensory cortex
    Yoshinobu Iguchi
    Department of Integrated Neuroscience, Tokyo Institute of Psychiatry, 2 1 8 Kamikitazawa Setagaya ku Tokyo 156 8585, Japan
    Neuroreport 13:2335-9. 2002
    ..The results suggest that a conscious regulation of stimulus intensity coding in the SI cortex underlies the attention-dependent enhancement of spatial finger information processing...
  11. ncbi Near-infrared spectroscopy analysis of frontal lobe dysfunction in schizophrenia
    Toshikazu Shinba
    Department of Stress Disorders Research and Integrative Neuroscience, Tokyo Institute of Psychiatry, Tokyo, Japan
    Biol Psychiatry 55:154-64. 2004
    ..In the present study, frontal function in schizophrenic patients was analyzed by NIRS during random number generation (RNG), ruler-catching (RC), and sequential finger-to-thumb (SFT) tasks...
  12. ncbi Contribution of primary somatosensory area 3b to somatic cognition: a neuromagnetic study
    Masato Tanosaki
    Department of Integrated Neuroscience, Tokyo Institute of Psychiatry, Tokyo, Japan
    Neuroreport 13:1519-22. 2002
    ..The result indicates that such circuitry plays a fundamental role in magnitude estimation of somatic stimuli...
  13. ncbi Effect of stimulus frequency on human cerebral hemodynamic responses to electric median nerve stimulation: a near-infrared spectroscopic study
    Masato Tanosaki
    Department of Integrated Neuroscience, Tokyo Institute of Psychiatry, 2 1 8 Kamikitazawa, Setagaya Ku, Tokyo 156 8585, Japan
    Neurosci Lett 352:1-4. 2003
    ..Since temporal activation patterns are different in two somatosensory areas, real-time optical monitoring is necessary in evaluation of hemodynamic responses to electric nerve stimulation...
  14. doi Estimating the absorption coefficient of the bottom layer in four-layered turbid mediums based on the time-domain depth sensitivity of near-infrared light reflectance
    Chie Sato
    Tokyo Metropolitan Institute of Medical Science, Integrated Neuroscience Research Project, 2 1 6 Kamikitazawa, Setagaya Ku, Tokyo 156 8506, Japan
    J Biomed Opt 18:097005. 2013
    ..These results suggest that the method reported here has potential for determining the μa of the cerebral tissue in humans...
  15. ncbi Co-activation of the secondary somatosensory and auditory cortices facilitates frequency discrimination of vibrotactile stimuli
    Yoshinobu Iguchi
    Integrated Neuroscience Research Team, Tokyo Institute of Psychiatry, 2 1 8 Kamikitazawa, Tokyo 156 8585, Japan
    Neuroscience 148:461-72. 2007
    ....
  16. ncbi Tactile interference to the face affects magnetic responses elicited by electric thumb stimulation
    Masato Tanosaki
    Department of Integrated Neuroscience, Tokyo Institute of Psychiatry, 2 1 8 Kamikitazawa, Setagaya Ku, Tokyo 156 8585, Japan
    Clin Neurophysiol 114:2118-23. 2003
    ..We examined the effect of tactile interference to the face on somatosensory evoked magnetic fields (SEFs) following electric thumb stimulation...
  17. ncbi A perfused rat brain model maintaining the connection between the central and peripheral nervous systems
    Norio Kobayashi
    Biophysics Group, Institute for Electronic Science, Hokkaido University, Sapporo 060 0812, Japan
    J Neurosci Methods 132:191-8. 2004
    ..The present model, in which we can change cerebral blood flow (CBF) and/or cerebral metabolism without directly affecting the systemic circulation, will provide a new approach to brain research...
  18. doi Diversity of neural-hemodynamic relationships associated with differences in cortical processing during bilateral somatosensory activation in rats
    Masahito Nemoto
    Integrated Neuroscience Research Team, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
    Neuroimage 59:3325-38. 2012
    ....
  19. doi Role of the prefrontal cortex in the cognitive control of reaching movements: near-infrared spectroscopy study
    Kotaro Goto
    Hokkaido University, Graduate School of Education, Sapporo, Japan
    J Biomed Opt 16:127003. 2011
    ..These findings suggest that the DLPFC is engaged in higher order cognitive control, while the right VLPFC is engaged in both higher and lower order cognitive controls...
  20. ncbi Extraction of depth-dependent signals from time-resolved reflectance in layered turbid media
    Chie Sato
    Tokyo Institute of Psychiatry, Department of Integrated Neuroscience, 2 1 8 Kamikitazawa, Setagaya Ku, Tokyo 156 8585, Japan
    J Biomed Opt 10:064008. 2005
    ..These results suggest the potential that mu(a) of the lower layer can be determined by our procedure...
  21. ncbi Regional cerebral blood flow changes associated with emotions in children
    Yoko Hoshi
    Department of Integrated Neuroscience, Tokyo Institute of Psychiatry, Tokyo, Japan
    Pediatr Neurol 27:275-81. 2002
    ..Our newly developed system will open a window into brain physiology in children...
  22. ncbi Quantitative evaluation of the relative contribution ratio of cerebral tissue to near-infrared signals in the adult human head: a preliminary study
    Shunji Kohri
    Laboratory of Biophysics, Research Institute for Electronic Science, Hokkaido University, Sapporo, Japan
    Physiol Meas 23:301-12. 2002
    ..Thus, our present method opened the door to the possibility of selectively obtaining optical signals attributed to cerebral tissue...
  23. doi Reduction of image artifacts induced by change in the optode coupling in time-resolved diffuse optical tomography
    Ryo Fukuzawa
    University of Electro Communications, Department of Mechanical Engineering and Intelligent Systems, Chofu, Tokyo, Japan
    J Biomed Opt 16:116022. 2011
    ..Moreover, numerical simulations, phantom experiments, and in vivo studies have validated this algorithm...
  24. doi Near-infrared spectroscopic study on the effects of chewing on short-term memory
    Mayumi Wada
    School of Dental Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
    Appetite 57:749-52. 2011
    ..Chewing did not improve task performance. Therefore, chewing-induced hemodynamic responses were unrelated to the performance in short-term memory tasks...
  25. ncbi Intraoperative monitoring of depth-dependent hemoglobin concentration changes during carotid endarterectomy by time-resolved spectroscopy
    Chie Sato
    Integrated Neuroscience Research Team, Tokyo Institute of Psychiatry, Tokyo, Japan
    Appl Opt 46:2785-92. 2007
    ..In addition, the combined evaluation of mu(a) changes with the DE-fit and MLB methods will provide us with more available information about the hemodynamic changes in the depth direction...
  26. doi Towards the next generation of near-infrared spectroscopy
    Yoko Hoshi
    Integrated Neuroscience Research Project, Tokyo Metropolitan Institute of Medical Science, 2 1 6 Kamikitazawa, Setagaya Ku, Tokyo 156 8506, Japan
    Philos Trans A Math Phys Eng Sci 369:4425-39. 2011
    ..Finally, near-infrared optical tomography--the next generation of NIRS--is described as a potential technique to overcome the limitations of NIRS...
  27. ncbi Variation of temporal characteristics in human cerebral hemodynamic responses to electric median nerve stimulation: a near-infrared spectroscopic study
    M Tanosaki
    Department of Integrated Neuroscience, Tokyo Institute of Psychiatry, 2 1 8 Kamikitazawa, Setagaya Ku, Tokyo 156 8585, Japan
    Neurosci Lett 316:75-8. 2001
    ..Thus, taking account of the temporal activation patterns is necessary for proper interpretation of the hemodynamic response following electric nerve stimulation...
  28. ncbi Specific somatosensory processing in somatosensory area 3b for human thumb: a neuromagnetic study
    M Tanosaki
    Department of Psychophysiology, Tokyo Institute of Psychiatry, 2 1 8 Kamikitazawa, Setagaya Ku, 156 8585, Tokyo, Japan
    Clin Neurophysiol 112:1516-22. 2001
    ..We examined the relation between somatosensory N20m primary responses and high-frequency oscillations (HFOs) after thumb and middle finger stimulation...
  29. ncbi Functional near-infrared spectroscopy: potential and limitations in neuroimaging studies
    Yoko Hoshi
    Department of Integrated Neuroscience, Tokyo Institute of Psychiatry, Tokyo 156 8585, Japan
    Int Rev Neurobiol 66:237-66. 2005
  30. ncbi [Near-infrared optical imaging of human brain function--a novel approach to the brain and the mind]
    Yoko Hoshi
    Department of Integrated Neuroscience, Tokyo Institute of Psychiatry
    Seishin Shinkeigaku Zasshi 104:381-93. 2002
    ..It is, thus, expected that NIRS will open a window into brain physiology in subjects who are difficult to examine with PET and fMRI such as children, the elderly, and patients with psychoneurological problems...
  31. doi Blood oxygenation level-dependent functional magnetic resonance imaging of bilateral but asymmetrical responses to gustatory stimulation in the rat insular cortex
    Ikuhiro Kida
    Integrated Neuroscience Research Team, Tokyo Institute of Psychiatry, Setagaya Ku, Tokyo, Japan
    Neuroimage 56:1520-5. 2011
    ..We think that BOLD fMRI of taste function in rodents will improve our understanding of taste information processing...
  32. ncbi Selective spatial attention induces short-term plasticity in human somatosensory cortex
    Y Iguchi
    Department of Integrated Neuroscience, Tokyo Institute of Psychiatry, 2-1-8 Kamikitazawa Setagaya-ku, Tokyo 156-8585, Japan
    Neuroreport 12:3133-6. 2001
    ..The task-dependent and immediate switchover of cortical finger representation demonstrates a dynamic SI activation for spatial information processing...
  33. ncbi A resistance gene in disguise for schizophrenia?
    Nagafumi Doi
    Department of Neuropsychiatry, University of Tokyo, Tokyo, Japan
    Am J Med Genet B Neuropsychiatr Genet 144:165-73. 2007
    ..485 T most likely confers resistance but not susceptibility to schizophrenia. An interaction between a nuclear resistance gene and a presumptive pathogenic gene in the mitochondrial DNA was suggested...
  34. ncbi Relationship between fluctuations in the cerebral hemoglobin oxygenation state and neuronal activity under resting conditions in man
    Y Hoshi
    Biophysics Group, Research Institute for Electronic Science, Hokkaido University, Sapporo, Japan
    Neurosci Lett 245:147-50. 1998
    ..The results suggest that spontaneous neuronal activity is responsible for fluctuations in the hemoglobin oxygenation state in the resting state...
  35. doi Relationship between infant and mother circadian rest-activity rhythm pre- and postpartum, in comparison to an infant with free-running rhythm
    Kyoko Nishihara
    Integrated Neuroscience Research Team, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
    Chronobiol Int 29:363-70. 2012
    ..The finding of this study indicates the free-running rhythm of infant is not reset by maternal entrainment factors...
  36. ncbi Neural mechanisms for generation of tactile interference effects on somatosensory evoked magnetic fields in humans
    Masato Tanosaki
    Department of Integrated Neuroscience, Tokyo Institute of Psychiatry, 2 1 8 Kamikitazawa, Setagaya ku 156 8585, Japan
    Clin Neurophysiol 113:672-80. 2002
    ..We examined modification of somatosensory evoked fields following electric middle finger stimulation with interference to the same and surrounding digits in 13 subjects...
  37. ncbi Impaired interhemispheric integration in brain oxygenation and hemodynamics in schizophrenia
    F Okada
    Health Administration Center, Hokkaido University, Sapporo, Japan
    Eur Arch Psychiatry Clin Neurosci 244:17-25. 1994
    ..On the other hand, half the schizophrenics showed dysregulated patterns between hemispheres which never appeared in normal volunteers. Certain schizophrenic symptoms may be related to defective interhemispheric integration...
  38. ncbi Visuospatial imagery is a fruitful strategy for the digit span backward task: a study with near-infrared optical tomography
    Y Hoshi
    Biophysics Group, Research Institute for Electronic Science, Hokkaido University, North Ward, North 12, West 6, Sapporo, Japan
    Brain Res Cogn Brain Res 9:339-42. 2000
    ..These results suggest that visuospatial imagery is a useful strategy for the DB task. Optical tomography described here is a new modality of neuropsychological studies...
  39. ncbi Simple algorithm for the measurement of absorption coefficients of a two-layered medium by spatially resolved and time-resolved reflectance
    Miho Shimada
    High Energy Accelerator Research Organization, KEK, Tsukuba, Ibaraki, Japan
    Appl Opt 44:7554-63. 2005
    ....
  40. ncbi Cerebral hemodynamics during the induction of antenatal periventricular leukomalacia by hemorrhagic hypotension in chronically instrumented fetal sheep
    Tadashi Matsuda
    Department of Pediatrics, Hokkaido University Graduate School of Medicine, Sapporo, Japan
    Am J Obstet Gynecol 194:1057-63. 2006
    ..Our purpose was to determine the characteristics of cerebral ischemia during the induction of antenatal periventricular leukomalacia by hemorrhagic hypotension in premature fetal sheep...
  41. ncbi Persistence problem in schizophrenia and mitochondrial DNA
    Nagafumi Doi
    Am J Med Genet B Neuropsychiatr Genet 144:1-4. 2007
    ..This hypothesis, coupled with the report which suggests mitochondrial dysfunction in schizophrenia, may encourage a new direction in genetic study of this puzzling disorder...
  42. ncbi Temporal classification of multichannel near-infrared spectroscopy signals of motor imagery for developing a brain-computer interface
    Ranganatha Sitaram
    Institute for Infocomm Research, Singapore
    Neuroimage 34:1416-27. 2007
    ..We also discuss here future extension of our system to develop a word speller application based on a cursor control paradigm incorporating online pattern classification of single-trial NIRS data...