Hi,
I have been doing a lot of research lately, apparently most people are told that they are right handed, but this is a myth. It is known in modern science that writing with your right hand and using your right most of the time, means you are using mainly the "left" side of the brain.
The brain having contralateral connectivity does not make left/right handedness a myth. It means that the brain has contralateral connectivity.
Each brain hemisphere is used for many, many other things despite writing. These include, attention, movement, memory, emotion processing, visual processing, auditory processing, etc. As the brain is connected to the body contralaterally by most part, this means we use both hemispheres of the brain, most of the time. The exception to this are ipsilateral connections, of which handedness is not a part.
Left-handedness modulated principally by the right, more creative, hemisphere suggests greater probability for creative connectivity. However, art is subjective which means creativity can be anything, including more intellectual pursuits which are left brain associated.
Handedness wise, there are some correlations that left handed individuals tend to be homosexual. Most homosexuals I know are left handed. (non-exhaustive) Empirical evidence:
http://www.psyneuen-journal.com/article/0306-4530(90)90048-E/abstract?cc=y
http://psycnet.apa.org/index.cfm?fa=search.displayRecord&uid=2000-08364-008
(sex-differences)
http://psycnet.apa.org/psycinfo/2008-11487-004
It would seem handedness has a neurological connection with sexual development (pun not intended). Given the difficulty in researching human neurodevelopment
in utero these findings are tentative and remain correlative in suggesting left handedness is a predictor of homosexuality. Findings suggest, however, homosexuality is determined before birth. This implication is in line with astrological determinism which claims such predictions on the basis of the birth chart. ♥