Normal subjects presented with a middle number and two left- and right-sided outer numbers overestimate the numerical distance between the middle number and that positioned at its left side. Repetitive transcranial magnetic stimulation (rTMS) of the right posterior parietal cortex specifically counteracts this bias, suggesting that the mental representation of space defined by numbers is shifted toward the left side depending on a greater activity of the right hemisphere.
OLIVERI M, RAUSEI V, KOCH G, TORRIERO S, TURRIZIANI P, CALTAGIRONE C (2004). Overestimation of numerical distances in the left space. NEUROLOGY, 63, 2139-2141.
Overestimation of numerical distances in the left space
OLIVERI, Massimiliano;RAUSEI V;TURRIZIANI, Patrizia;
2004-01-01
Abstract
Normal subjects presented with a middle number and two left- and right-sided outer numbers overestimate the numerical distance between the middle number and that positioned at its left side. Repetitive transcranial magnetic stimulation (rTMS) of the right posterior parietal cortex specifically counteracts this bias, suggesting that the mental representation of space defined by numbers is shifted toward the left side depending on a greater activity of the right hemisphere.
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