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Language areas are represented unilaterally in the human brain. [3] In around 95% of right-handers, these brain areas are often located on the left hemisphere, however the proportion reduces in left handers down to around 70%. [2] Therefore 7 in every 100 individuals is right-hemisphered for language and left-hand dominant. [4]
Language functions such as grammar, vocabulary and literal meaning are typically lateralized to the left hemisphere, especially in right-handed individuals. [7] While language production is left-lateralized in up to 90% of right-handers, it is more bilateral, or even right-lateralized, in approximately 50% of left-handers. [8]
Right-handed people are more skillful with their right hands. Studies suggest that approximately 90% of people are right-handed. [7] [14] Left-handedness is less common. Studies suggest that approximately 10% of people are left-handed. [7] [15] Ambidexterity refers to having equal ability in both hands. Those who learn it still tend to favor ...
While these genetic variants account for only a tiny fraction - perhaps 0.1% - of left-handedness, the researchers said the study shows that this gene, called TUBB4B, may play a role in the ...
There has been a fair amount of research that associates left-handedness with the likelihood of psychotic disorders like schizophrenia.
Left-handed pen nibs are not generally easy to find, and strokes may have to be done backwards from traditional right-handed calligraphic work rules to avoid nib jamming and splatter. Left-handed people have an advantage in learning 19th-century copperplate hands, which control line-width by pressure on the point. [citation needed]
An older study found that left-handed people were better at "divergent thinking", and a more recent research cites lefties have better working memories and mental flexibility. 5. Don't get too ...
Some people may, for instance, use their right hand for writing, and their left hand for playing racket sports and eating [2] (see also: cross-dominance). Also, it is not uncommon that people preferring to use the right hand prefer to use the left leg , e.g. when using a shovel, kicking a ball, or operating control pedals.