Experts say the right side of the brain, which controls the left hand, does more holistic processing, like that needed for visual perception, spatial awareness, dimension. Not a surprise that in a 2010 report, 80% of the architects are left-handed.
This is interesting, from http://www.ncbi.nlm.nih.gov/pubmed/604901. As predicted, over a 6-yr. period, more left-handed proportionately than right-handed architecture students successfully completed their 6-yr. program. Contrary to expectation, the entering class in 1976 had 21% left-handed males, 12 of 57. Lastly these left-handed men had high factor scores in a group of academic predictors, design scores, and grade point averages during the first quarter. The 45 right-handed men in the entering class had almost zero mean scores on the predictors and negative mean scores on performance. The 19 right-handed women in the class had negative scores on the academic predictors and positive ones on performance.
Sandy’s year long journey – going from being a right-hander to left-hander, and Kelly’s parallel trip as a left-hander doing things as a right-hander.