Yuka Sasaki

Summary

Affiliation: Harvard University
Country: USA

Publications

  1. ncbi Psychophysics: Is subliminal learning really passive?
    Aaron R Seitz
    Department of Neurobiology, Harvard Medical School, Boston, Massachusetts 02115, USA
    Nature 422:36. 2003
  2. ncbi Local and global attention are mapped retinotopically in human occipital cortex
    Y Sasaki
    NMR Center, Department of Radiology, Massachusetts General Hospital, 149 13th Street, Charlestown, MA 02129, USA
    Proc Natl Acad Sci U S A 98:2077-82. 2001
  3. ncbi Symmetry activates extrastriate visual cortex in human and nonhuman primates
    Yuka Sasaki
    NMR Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
    Proc Natl Acad Sci U S A 102:3159-63. 2005
  4. ncbi The radial bias: a different slant on visual orientation sensitivity in human and nonhuman primates
    Yuka Sasaki
    Athinoula A Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13th Street, Charlestown, MA 02129, USA
    Neuron 51:661-70. 2006
  5. ncbi Human brain activity during illusory visual jitter as revealed by functional magnetic resonance imaging
    Yuka Sasaki
    Athinoula A Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown 02129, USA
    Neuron 35:1147-56. 2002
  6. ncbi Performance Dip in motor response induced by task-irrelevant weaker coherent visual motion signals
    Yuko Yotsumoto
    Athinoula A Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13th Street, Charlestown, MA 02129, USA
    Cereb Cortex 22:1887-93. 2012
  7. ncbi Advances in visual perceptual learning and plasticity
    Yuka Sasaki
    Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA
    Nat Rev Neurosci 11:53-60. 2010
  8. ncbi Location-specific cortical activation changes during sleep after training for perceptual learning
    Yuko Yotsumoto
    Athinoula A Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13th Street, Charlestown, MA 02129, USA
    Curr Biol 19:1278-82. 2009
  9. ncbi Perceptual learning: cortical changes when cats learn a new trick
    Yuka Sasaki
    Athinoula A Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, MA, USA
    Curr Biol 20:R557-8. 2010
  10. ncbi The primary visual cortex fills in color
    Yuka Sasaki
    NMR Center, Department of Radiology, Massachusetts General Hospital, Charlestown, MA 02129, USA
    Proc Natl Acad Sci U S A 101:18251-6. 2004

Research Grants

  1. Perceptual Learning and Sleep
    Takeo Watanabe; Fiscal Year: 2010

Collaborators

Detail Information

Publications24

  1. ncbi Psychophysics: Is subliminal learning really passive?
    Aaron R Seitz
    Department of Neurobiology, Harvard Medical School, Boston, Massachusetts 02115, USA
    Nature 422:36. 2003
  2. ncbi Local and global attention are mapped retinotopically in human occipital cortex
    Y Sasaki
    NMR Center, Department of Radiology, Massachusetts General Hospital, 149 13th Street, Charlestown, MA 02129, USA
    Proc Natl Acad Sci U S A 98:2077-82. 2001
    ..Instead, local attention and global attention appear to be special cases of visual spatial attention, which are mapped consistently with the maps of retinotopy and spatial frequency tuning, in multiple visual cortical areas...
  3. ncbi Symmetry activates extrastriate visual cortex in human and nonhuman primates
    Yuka Sasaki
    NMR Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
    Proc Natl Acad Sci U S A 102:3159-63. 2005
    ..This evidence suggests that visual symmetry is specifically enhanced in the human brain, but that the underlying neural mechanisms may nevertheless be resolvable in nonhuman primates...
  4. ncbi The radial bias: a different slant on visual orientation sensitivity in human and nonhuman primates
    Yuka Sasaki
    Athinoula A Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13th Street, Charlestown, MA 02129, USA
    Neuron 51:661-70. 2006
    ..This evidence reveals a neural link between orientation sensitivity and the cortical retinotopy, which have previously been considered independent...
  5. ncbi Human brain activity during illusory visual jitter as revealed by functional magnetic resonance imaging
    Yuka Sasaki
    Athinoula A Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown 02129, USA
    Neuron 35:1147-56. 2002
    ..The present finding suggests the pathway from V1 to MT+ has an important role in stabilizing the visual world...
  6. ncbi Performance Dip in motor response induced by task-irrelevant weaker coherent visual motion signals
    Yuko Yotsumoto
    Athinoula A Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13th Street, Charlestown, MA 02129, USA
    Cereb Cortex 22:1887-93. 2012
    ..Our results suggest a possible common brain mechanism across different neural circuits, in which weak, but not strong, task-irrelevant information is free from inhibition and intrudes into neural circuits relevant to the main task...
  7. ncbi Advances in visual perceptual learning and plasticity
    Yuka Sasaki
    Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA
    Nat Rev Neurosci 11:53-60. 2010
    ..In addition, we have learnt much about the neural substrates of VPL and it has become evident that changes in visual areas and regions beyond the visual cortex can take place during VPL...
  8. ncbi Location-specific cortical activation changes during sleep after training for perceptual learning
    Yuko Yotsumoto
    Athinoula A Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13th Street, Charlestown, MA 02129, USA
    Curr Biol 19:1278-82. 2009
    ..These results suggest that as far as V1 is concerned, only the trained region is involved in improving task performance after sleep...
  9. ncbi Perceptual learning: cortical changes when cats learn a new trick
    Yuka Sasaki
    Athinoula A Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, MA, USA
    Curr Biol 20:R557-8. 2010
    ..A new study has found that the tuning properties of neurons in the primary visual cortex of cats change as they learn an orientation-discrimination task, casting new light on the neuronal basis of perceptual learning...
  10. ncbi The primary visual cortex fills in color
    Yuka Sasaki
    NMR Center, Department of Radiology, Massachusetts General Hospital, Charlestown, MA 02129, USA
    Proc Natl Acad Sci U S A 101:18251-6. 2004
    ..Activity for filling-in was observed only in V1, whereas activity for illusory contours was observed in multiple visual areas. These results indicate that surface representation is produced by multiple rather than single processing...
  11. ncbi Processing local signals into global patterns
    Yuka Sasaki
    Athinoula A Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, 149 13th Street, Charlestown, MA 02129, USA
    Curr Opin Neurobiol 17:132-9. 2007
    ....
  12. ncbi Different dynamics of performance and brain activation in the time course of perceptual learning
    Yuko Yotsumoto
    Athinoula A Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13th Street, Charlestown, MA 02129, USA
    Neuron 57:827-33. 2008
    ..These findings indicate that there are distinct temporal phases in the time course of perceptual learning, related to differential dynamics of BOLD activity in visual cortex...
  13. ncbi Visual experience can substantially alter critical flicker fusion thresholds
    Aaron R Seitz
    Department of Neurobiology, Harvard Medical School, 220 Longwood Ave, Boston, MA 02115, USA
    Hum Psychopharmacol 20:55-60. 2005
    ..The results show that the perceptual experience of subjects can dramatically alter the CFF thresholds and should be an important consideration in the control of studies employing the CFF as a measure...
  14. ncbi Measuring the depth induced by an opposite-luminance (but not anticorrelated) stereogram
    Piers D L Howe
    Department of Neurobiology, Harvard Medical School, 220 Longwood Avenue, Boston, MA 02115, USA
    Perception 32:415-21. 2003
    ....
  15. ncbi Stereopsis activates V3A and caudal intraparietal areas in macaques and humans
    Doris Y Tsao
    Massachusetts General Hospital, NMR Center, Athinoula A Martinos Center, Charlestown, Massachusetts 02129, USA
    Neuron 39:555-68. 2003
    ..Thus, in both primate species a small cluster of areas at the parieto-occipital junction appears to be specialized for stereopsis...
  16. ncbi A unified model for perceptual learning
    Aaron Seitz
    Department of Neurobiology, Harvard Medical School, Boston, MA 02115, USA
    Trends Cogn Sci 9:329-34. 2005
    ..Our model provides insights into how neural modulators, attentional and reinforcement learning systems are related...
  17. ncbi [Recent progress of neuroimaging studies on sleeping brain]
    Yuka Sasaki
    Athinoula A Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, MA, USA
    Brain Nerve 64:611-9. 2012
    ..Lastly, possible directions for future research in this area will be discussed...
  18. ncbi Functional neuroanatomical investigation of vision-related acupuncture point specificity--a multisession fMRI study
    Jian Kong
    Department of Psychiatry, Massachusetts General Hospital, Charlestown, Massachusetts, USA
    Hum Brain Mapp 30:38-46. 2009
    ..Given the complexity of acupuncture systems and brain activity, additional work is required to determine whether functional neuroanatomical correlates of acupoint specificity can be validated by means of brain imaging tools...
  19. ncbi Greater disruption due to failure of inhibitory control on an ambiguous distractor
    Yoshiaki Tsushima
    Department of Psychology, Boston University, 64 Cummington Street, Boston, MA 02215, USA
    Science 314:1786-8. 2006
    ..These results suggest that subthreshold irrelevant signals are not subject to effective inhibitory control...
  20. ncbi Separate processing of different global-motion structures in visual cortex is revealed by FMRI
    Shinichi Koyama
    Department of Psychology, Boston University, 64 Cummington Street, Boston, Massachusetts 02215, USA
    Curr Biol 15:2027-32. 2005
    ..These results suggest that in the human brain, V3A is an area that differentially responds according to the type of global motion...
  21. ncbi Neuroimaging of direction-selective mechanisms for second-order motion
    Shin ya Nishida
    NTT Communication Science Laboratories, Nippon Telegraph and Telephone Corporation, Atsugi, Kanagawa 243 0198, Japan
    J Neurophysiol 90:3242-54. 2003
    ..In addition, we found no obvious anatomical segregation in the neural substrates for 1st- and 2nd-order motion processing that can be resolved using standard fMRI...
  22. ncbi Greater plasticity in lower-level than higher-level visual motion processing in a passive perceptual learning task
    Takeo Watanabe
    Department of Psychology, Boston University, 64 Cummington Street, Boston, Massachusetts 02215, USA
    Nat Neurosci 5:1003-9. 2002
    ..These results indicate that when attentional influence is limited, lower-level motion processing is more receptive to long-term modification than higher-level motion processing in the visual cortex...
  23. ncbi Repeated fMRI using iron oxide contrast agent in awake, behaving macaques at 3 Tesla
    Francisca P Leite
    Massachusetts Institute of Technology, Department of Nuclear Engineering, Cambridge, Massachusetts 02139, USA
    Neuroimage 16:283-94. 2002
    ..Overall, the contrast agent produced a dramatic improvement in functional brain imaging results in the awake, behaving primate at this field strength. (c) 2002 Elsevier Science (USA)...
  24. ncbi Factors related to the occurrence of isolated sleep paralysis elicited during a multi-phasic sleep-wake schedule
    Tomoka Takeuchi
    Centre d Etude du Sommeil, Hopital du Sacre Coeur de Montreal, Quebec, Canada
    Sleep 25:89-96. 2002
    ....

Research Grants1

  1. Perceptual Learning and Sleep
    Takeo Watanabe; Fiscal Year: 2010
    ..Successful research results may be used to improve our vision and enhance our learning ability. ..