Handedness and mathematical ability

The suggested link is that a brain without extreme bias towards locating language in the left hemisphere would have an advantage in mathematical ability.

Annett reports the results of this study as being consistent with the hypothesis, for explaining the cause of handedness, of an absent genetic right-shift factor.

Again, a statistically significant difference was found for males, and again Annett states this to be consistent with the right-shift model.

Further examples are a 1986 study by Benbow and a 1990 study by Temple of staff at the University of Oxford, which, Annett states, show not that there is a predominance of left-handers in talented groups, whether that talent be with mathematics or otherwise, but rather that there is a shortfall in such groups of people who are strongly right-handed.

Researchers at the University of Liverpool concluded that there is a moderate, yet significant correlation between mathematical skills and handedness.