The neural basis of the Weber-Fechner law: a logarithmic mental number line.
The recent discovery of number neurons allows for a dissection of the neuronal implementation of number representation. In a recent article, Nieder and Miller demonstrate a neural correlate of Weber's law, and thus resolve a classical debate in psychophysics: the mental number line seems to be logarithmic rather than linear.
Dehaene
Stanislas
S
INSERM Unit 562, Cognitive Neuroimaging, Service Hospitalier Frédéric Joliot, Orsay, France