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Author Topic: why are more people right handed?  (Read 1927 times)

Katrina Ziebarth

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why are more people right handed?
« on: 12/06/2008 08:10:13 »
Katrina Ziebarth asked the Naked Scientists:

Why are more people right-handed?

What do you think?


 

Offline RD

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why are more people right handed?
« Reply #1 on: 13/06/2008 22:49:41 »
Quote
The significant majority of humans are right-handed. Many are also right-sided in general (that is, they prefer to use their right eye, right foot and right ear if forced to make a choice between the two). The reasons for this are not fully understood, but it is thought that because the left cerebral hemisphere of the brain controls the right side of the body, the right side is generally stronger; it is suggested that the left cerebral hemisphere is dominant over the right in most humans because in 90-92% of all humans the left hemisphere is the language hemisphere.
http://en.wikipedia.org/wiki/Laterality

In societies where communication is important there will be an evolutionary bias for left-brained / right-handed individuals.
 

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why are more people right handed?
« Reply #1 on: 13/06/2008 22:49:41 »

 

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