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Are you left or right handed?

Human Anatomy, Physiology, and Medicine. Anything human!

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Are you left or right handed?

Left handed
6
14%
Right handed
33
79%
Ambidextrous
3
7%
 
Total votes : 42

Postby biostudent84 » Sun Apr 10, 2005 12:41 am

James wrote:So are there any other animals that have dominant hands/limbs?


Yes. My ecology professor was talking about that last semester. But for the life of me, I can't remember even one example... :( :( :( :? :? :?
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Postby mith » Sun Apr 10, 2005 12:53 am

From a post on ubersite.com called "totally useless facts"

All polar bears are left-handed.
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
~Niebuhr
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Postby biostudent84 » Sun Apr 10, 2005 12:56 am

Now that you mention it, I've read that before too.

Have you ever heard of the books called Uncle John's Bathroom Readers? They are listed as humor/reference. They are full of useless facts like that, and I think that's one of them.

By the way, your example about lefties being better fighters is very interesting. And makes perfece sense too!

Kyle
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Postby mith » Sun Apr 10, 2005 2:58 am

I've read those, and ahem I use them :D
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
~Niebuhr
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Postby biostudent84 » Sun Apr 10, 2005 3:13 am

Me too!!!!
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left or right handed

Postby dr.pnj » Sat Apr 16, 2005 11:53 am

the part of th e brain i.e left or right hemi controls the opposite side of the body
some of us work with our right while others with our left hands this is because there is an area in the motor cortex which shows representation of various organs
humans have fully opposable thumb cause of max representation in the motor cortex so i guess some of us have max representation of right/ left hand muscsles and nerves in the motor cortex which further depends on training or conditioned reflexes
:shock:
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Postby dontbepurple » Sun Jun 04, 2006 10:13 pm

Okay so I understand that this is an old conversation and I'm kind of late but whatever.
Okay so I'm left handed, as are both of my parents and I think both sets of my grandparents were. Or at least one from each set.
Anyway my brother is a righty.
How does that work?
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Postby Cilla » Mon Jun 05, 2006 3:32 pm

There is a theory, concerning brain damage being a possible causal factor in some types of schizophrenia, where left handedness is also implicated.

The thinking is that the left side of the brain is damaged, (by cerebral anoxia, e.g., around the time of birth), leading to this illness, (possibly in genetically susceptible individuals), who, but for the damage, would have been right handed.

NB, this theory concerns the UK diagnostic criteria for schizophrenia, which evolved from the German psychiatrist, Schneider. It is very different from the criteria used to diagnose this illness in the US, so the left handedness sign, which must be taken into account with the aforementioned Schneider(ian) First Rank Symptoms, would perhaps not hold quite so much statistical significance.

It is also not claiming that those with left handedness per se are therefore likely to be brain damaged.

It is a shame that they do sometimes get categorised as clumsy and 'gauche'.

Are people with dyspraxia, (who are a bit clumsy, through no fault of their own), more likely to be left handed?

Another interesting point is that the incidence of schizophrenia in the UK is 1:100.

Something valuable must be added to the gene pool by this illness, or it would not be so high.

This is a bit like the reason why we have sickle cell anaemia, because this disease confers immunity to malaria, apparently.

Another interesting fact is that millions have died of malaria because the use of DDT was virtually, and perhaps needlessly, virtually eliminated.

Some university scientists (in Arizona, I think), who were against the ban tried to prove how safe it was by eating it, and they suffered no harm.

In the UK, one can catch malaria, but only at the airport. This is of course because arthropods like to fly, and some (if not all) UK airports have dispensed with the practice of disinfecting and cleaning aeroplanes between flights.

Do you all think it is healthy to fly, breathing in all that recirculated air, with diseased arthropods, (flying TransLove Airlines), sitting next to you?

One professor of psychiatry opines that another risk factor (which may also result in left handedness) for schizophrenia is a virus, maybe a 'slow' virus.

Maybe everything comes back to microorganisms in the end.
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Postby Amrik » Thu Jun 08, 2006 10:05 am

biostudent84 wrote:Dominant hands are based mostly on genetics and partially on enviornmental factors. However, you cannot accurately genotype anyone with a Punnet square because dominant hands are decided by a number of different genes.

((I voted Right-handed, although I've been working to become ambidexterous:)))


Well...my dad told me tht wen i was a kid(2 years mayb) i like to use left-hand...my dad would try to make me use my right hand and here i m today!! using my right hehe
Ambidextrous means u can use both hands rite?
i want to become ambidextrous too...is it possible? if yes how?
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Postby Aesthetic » Thu Jun 15, 2006 5:04 pm

I am left-handed.

Cillia wrote: Are people with dyspraxia, (who are a bit clumsy, through no fault of their own), more likely to be left handed?

Ppl. with dyspraxia are less coordinated due to a number of contributing factors i.e. neurological, depth percept, etc. it occurs regardless of hand or hemisphere dominance. However, lefthanded ppl. "seem" to be less coordinated or awkward in handling or operating devices due to the mechanics of design being the exact opposite of what is comfortable or user friendly. In that regard... we could actually be even more coordinated due to the learning curve.

Cillia wrote: It is a shame that they do sometimes get categorised as clumsy and 'gauche'.

Well... I wouldn't feel too badly. I'd say we're in pretty good company:

Albert Einstein, Leonardo De Vinchi, Michaelangelo, Bach, Mozart, Beethoven, Julius Caesar, Napoleon, Aristotle, Winston Churchill, Bill Gates, Steve Forbes, Henry Ford, Mark Twain, Thomas Jefferson, Benjamin Franklin, Nietzsche, Charlemagne, Gandhi, Joan of Arc, Alexander the Great, Goethe, Fidel Castro, John D & Nelson Rockerfeller, Charlie Chaplin, Oprah, Queens Victoria, Elizabeth, Kings Louie 16, George 2, 4, and 6, Edwards', George Burns, Robert Deniro, Robert Redford, Cary Grant, Rock Hudson, Dick Van Dyke, Marilyn Monroe, Greta Garbo, Judy Garland, Faye Dunaway, Nicole Kidman, Bruce Willis, Anjelina Jolie, Brad Pitt, Herbert and J. Edgar Hoover, Trueman, Garfield, G. Ford, & JFK & Jr. , Clinton, Bush Sr., Marvin Heggler, Oscar DeLarente, Lu Gehrig, Babe Ruth, Helen Keller.... and did I mention... Albert Einstein? It's worth mentioning twice.

The word left means "sinister" and even more unsettling, yet curious, is that nearly all cultures and languages that were completely unconnected or uninfluenced by another... all choose words for left-handed derived from words meaning, evil, satan, bad, witch, sorcerer, etc. Even in Eskimo it means "identify the devil" and I think the least awful translation is the Irish word for it meaning "unlucky." Add to that the history of being an outcast to more extreme examples of being burned at the stake.... and it makes more sense why stigma from myth and folklore die hard... unfortunately it was intertwined with vvery real occurrences. Beliefs that propel misnomers even today.
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Ambidextrous can be trained

Postby Retha Jo » Thu Jul 06, 2006 9:06 am

Amrik wrote:
Well...my dad told me tht wen i was a kid(2 years mayb) i like to use left-hand...my dad would try to make me use my right hand and here i m today!! using my right hehe
Ambidextrous means u can use both hands rite?
i want to become ambidextrous too...is it possible? if yes how?

Ambidextrous can be trained.
If you want to have the ability to write with both of your hand, you can practice it right now. Practice makes perfect.

Using two hands can make our brain working system more effectively.
If You're Moving your right hand, left side of your brain works.
if you're moving your left hand, right side of your brain works.

Genius people are the people that use both sides of their brain more effectively than ordinary people.

What about practicing piano?
In piano we have to use both of our hands. :wink:
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Re: Ambidextrous can be trained

Postby Linn » Thu Jul 06, 2006 12:15 pm

.
tai chi is probably the best bain excercise I think. And why you feel peaceful while you are doing it , because your brain is concentrating on only that. those things help balance out the brain.

Also simple as writing your name with your left hand every day.
Thats how us ambidextrous people were untrained by the teachers not letting us use either hand. So it makes sense that it can also be undone. Of course its harder when you are older. :?

There is a test in this forum to find out which side of the brain you use (just for fun)
"How far you go in life depends on your being tender with the young, compassionate with the aged, sympathetic with the striving and tolerant of the weak and strong. Because someday in life you will have been all of these".

~ George washington Carver
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