The dominant form of the gene confers right-handedness
(and also, interestingly enough, a clockwise hair spiral).
Scientists have linked prevalent right-handedness
in human populations to a left brain hemisphere that controls right-sided body movements and functions crucial to language.
fits better on our club and Tuck's left-handedness fits better on their club.
Now, a new investigation by Frayer and an international team led by Virginie Volpato of the Senckenberg Institute in Frankfurt, Germany, has confirmed Regourdou's right-handedness
by looking more closely at the robustness of the arms and shoulders, and comparing it with scratches on his teeth.
By at least 120,000 years ago, right-handedness
frequently occurred among Neandertals, Uomini asserts.
She says that the findings of her team's study attain significance because determining when right-handedness
first evolved may shed light on traits linked to lateralised brains, such as language and technology.
There are a number of common characteristics common among dyslexics: unusual misspellings; the tendency to reverse letters and words, such as b for d; mirror writing, in which whole sentences are written backward; and sloppy handwriting, thought to be caused by an uncertain preference for left- or right-handedness
They also suggest that the crows' preference could be equivalent to human right-handedness
The psychologists combined the results of 20 previous studies, both published and unpublished, comparing rates of right-handedness
in a total of 23,410 homosexual and heterosexual men and women.
of the DNA double helix is expected to induce some form of twisting in the strands of the liquid crystal that is analogous to the way a twisted-up phone cord tends to coil around itself.
indeed occurred in 9 out of 10 Neandertals, that figure coincides with the frequency of right-handedness
in modern human groups, he notes.
Even before human-like creatures came along, hand and posture preferences among early prosimians, monkeys and apes paved the way for a human brain that accentuates right-handedness
and contains structures within the left side of the brain exploited for speech and language comprehension by natural selection, theorize psychologist Peter F.