@inbook{143636,
  author = {Michael SA Graziano and CG Gross and MS Gazzaniga},
  title = {The representation of extrapersonal space: A possible role for bimodal, visual-tactile neurons},
  abstract = { <p>
	We propose that extrapersonal space is represented in the brain by bimodal, visual-tactile neurons in: 1) inferior area 6 in the frontal lobe, 2) area 7b in the parietal lobe, and 3) the putamen.~ In each of these areas, there are cells which respond both to tactile and visual stimuli.~ In each area, the tactile receptive fields are arranged to form a somatotopic map.~ The visual receptive fields are usually adjacent to the tactile ones and extend outward from the skin about 20 cm.~ Thus each area contains a somatotopically organized map of the visual space that immediately surrounds the body.~ These three areas are monosynaptically interconnected, and may form a distributed system for representing extrapersonal visual space.~ For many neurons with tactile receptive fields on the arm or hand, when the arm was moved, the visual receptive field moved with it.~ Thus, these neurons appear to code the location of visual stimuli in arm centered coordinates.~ More generally, we suggest that the bimodal cells represent near, extrapersonal space in a body part centered fashion, rather than in an exclusively head centered or trunk centered fashion.
</p>
 },
  year = {1994},
  journal = {The Cognitive Neurosciences},
  pages = {1021 -1034},
  publisher = {MIT Press},
  language = {eng},
}