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Relating magnitudes: the brain's code for proportions.

Jacob SN, Vallentin D, Nieder A – 2012

Whereas much is known about how we categorize and reason based on absolute quantity, data exploring ratios of quantities, as in proportions and fractions, are comparatively sparse. Until recently, it remained elusive whether these two representations of number are connected, how proportions are implemented by neurons and how language shapes this code. New data derived with complementary methods and from different model systems now shed light on the mechanisms of magnitude ratio representations. A coding scheme for proportions has emerged that is remarkably reminiscent of the representation of absolute number. These novel findings suggest a sense for ratios that grants the brain automatic access to proportions independently of language and the format of presentation.

Title
Relating magnitudes: the brain's code for proportions.
Author
Jacob SN, Vallentin D, Nieder A
Publisher
Elsevier Science,
Date
2012-03
Identifier
doi: 10.1016/j.tics.2012.02.002
Appeared in
Trends Cogn. Sci. (Regul. Ed.) 16(3): 157-66
Language
eng
Type
Text