Optical Imaging of a Tactile Illusion in Area 3b of the Primary Somatosensory Cortex

@article{Chen2003OpticalIO,
  title={Optical Imaging of a Tactile Illusion in Area 3b of the Primary Somatosensory Cortex},
  author={L. Chen and R. Friedman and A. Roe},
  journal={Science},
  year={2003},
  volume={302},
  pages={881 - 885}
}
In the tactile funneling illusion, the simultaneous presentation of brief stimuli at multiple points on the skin produces a single focal sensation at the center of the stimulus pattern even when no physical stimulus occurs at that site. Consistent with the funneling percept, we show with optical imaging in area 3b of the primary somatosensory cortex (SI) that simultaneous stimulation of two fingertips produces a single focal cortical activation between the single fingertip activation regions… Expand
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