Number-space interactions in the human parietal cortex: Enlightening the SNARC effect with functional near-infrared spectroscopy.

@article{Cutini2014NumberspaceII,
  title={Number-space interactions in the human parietal cortex: Enlightening the SNARC effect with functional near-infrared spectroscopy.},
  author={Simone Cutini and Fabio Scarpa and Pietro Scatturin and Roberto Dell’Acqua and Marco Zorzi},
  journal={Cerebral cortex},
  year={2014},
  volume={24 2},
  pages={
          444-51
        }
}
Interactions between numbers and space have become a major issue in cognitive neuroscience, because they suggest that numerical representations might be deeply rooted in cortical networks that also subserve spatial cognition. The spatial-numerical association of response codes (SNARC) is the most robust and widely replicated demonstration of the link between numbers and space: in magnitude comparison or parity judgments, participants' reaction times to small numbers are faster with left than… 

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