Beyond Natural Numbers: Negative Number Representation in Parietal Cortex

  title={Beyond Natural Numbers: Negative Number Representation in Parietal Cortex},
  author={Kristen Pilner Blair and Miriam Rosenberg-Lee and Jessica M. Tsang and Daniel L. Schwartz and Vinod Menon},
  booktitle={Front. Hum. Neurosci.},
Unlike natural numbers, negative numbers do not have natural physical referents. How does the brain represent such abstract mathematical concepts? Two competing hypotheses regarding representational systems for negative numbers are a rule-based model, in which symbolic rules are applied to negative numbers to translate them into positive numbers when assessing magnitudes, and an expanded magnitude model, in which negative numbers have a distinct magnitude representation. Using an event-related… CONTINUE READING


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