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Left or right handed?
https://gladerebooted.net/viewtopic.php?f=2&t=6120		 Page 1 of 2
Author:  Arathain Kelvar [ Fri Apr 29, 2011 3:36 pm ]
Post subject:  Left or right handed?
Just curious.
Author:  Micheal [ Fri Apr 29, 2011 3:38 pm ]
Post subject: 
What, no ambidextrous, or so clumsy I can't tell?
Author:  Arathain Kelvar [ Fri Apr 29, 2011 3:40 pm ]
Post subject:  Re:
Micheal wrote:
What, no ambidextrous, or so clumsy I can't tell?


People may be functionally ambidextrous, but they genetically have one or the other.
Author:  Lenas [ Fri Apr 29, 2011 3:41 pm ]
Post subject: 
Right makes might.
Author:  Rynar [ Fri Apr 29, 2011 3:44 pm ]
Post subject: 
Where is the "FarSky gives ambidexterous hand jobs" option?
Author:  Raltar [ Fri Apr 29, 2011 4:20 pm ]
Post subject: 
My right hand is dominant for most things, but I use my left for many key activities(when I'm driving, for example and get lazy, I will steer one handed. It will always be my left hand. Also, when I only have to use a fork or a spoon, I eat with my left hand. When a knife is required, it goes in my right hand, but I think that's normal for a right handed person)
Author:  Hopwin [ Fri Apr 29, 2011 4:41 pm ]
Post subject: 
I use the stranger, so who knows?
Author:  Squirrel Girl [ Fri Apr 29, 2011 4:44 pm ]
Post subject:  Re: Re:
Arathain Kelvar wrote:
Micheal wrote:
What, no ambidextrous, or so clumsy I can't tell?


People may be functionally ambidextrous, but they genetically have one or the other.


Not true.

Handedness is a function of lateralization in the brain. In other words, usually one side of the brain is larger than the other. The opposite hand to the larger side of the brain is then dominant. Nerves from the left side of the brain generally cross over to the right side of the body, and vice versa.

There are two basic types of people: Lateralizors and Non-lateralizors. Lateralization of the brain is the dominant trait and the most common. All of these people are right handed. Non-lateralization is recessive. These people can be right handed, left handed, or occasionally ambidextrous.

In neurosurgery, and in the treatment of people with brain damage such as stroke and brain trauma, it is important to note handedness. This is because speech centers are all on the left side of the brain in Lateralizors and mixed of both sides of the brain in non-lateralizors. Handedness is not perfect to distinguish these two groups, but it does help a lot.
Author:  shuyung [ Fri Apr 29, 2011 5:53 pm ]
Post subject: 
Isn't that primary language specific? I have heard that it if you are at least bi-lingual, you have a very good chance of still being capable of communicating after a stroke. Although not, perhaps, in a fashion that those around you can understand.
Author:  Squirrel Girl [ Fri Apr 29, 2011 6:54 pm ]
Post subject:  Re:
shuyung wrote:
Isn't that primary language specific? I have heard that it if you are at least bi-lingual, you have a very good chance of still being capable of communicating after a stroke. Although not, perhaps, in a fashion that those around you can understand.


Usually when a multilingual person has a stroke that effects language, all languages are effected equally. Very rarely is one language effected and not another. However, in very rare occasions this can occur. Often this gets written up as a case study. I had one patient who lost ability to speak her native language, but could still speak English.

Language is the symbols by which human express themselves. Language is usually spoken, written or signed. Trying to teach a person a different language does not work because that area of the brain is damaged. (I've had to explain that to Doctors who ask why their patient can't be taught sign language. :P ) Only once have I had a patient who lost the ability to speak, but maintained to ability to write.
Author:  Stathol [ Fri Apr 29, 2011 9:14 pm ]
Post subject:  Re: Re:
Squirrel Girl wrote:
The opposite hand to the larger side of the brain is then dominant. Nerves from the left side of the brain generally cross over to the right side of the body, and vice versa.

Also, and please correct me if I'm wrong, but different nerve groups cross over at different points along the spine. With unilateral spinal cord injuries (ex. the spinal cord gets nicked on one side or the other), you can wind up with really strange phenomena like losing motor control on the left side, but losing the ability to sense temperature on the right side, depending on where along the spine the injury occurred.

And also on this subject: although the human is highly symmetrical on the outside, it is quite asymmetrical (for the most part) on the inside. Now that's actually kind of strange in and of itself if you stop and think about it, but I doubt that it's news to anyone. But here's the really freaky thing: the "handedness" of this layout is highly consistent across the human species. Your stomach and heart are on the left, etc., etc.

...

Except for when it isn't. Very rarely (< 1 in 10k) people are born either partially or completely "backwards" on the inside. :psyduck:
Author:  LadyKate [ Fri Apr 29, 2011 9:35 pm ]
Post subject: 
I'm disappointed. I thought this was going to be a masturbation poll.
Author:  Mookhow [ Fri Apr 29, 2011 9:37 pm ]
Post subject: 
It isn't?
Author:  LadyKate [ Fri Apr 29, 2011 9:38 pm ]
Post subject:  Re:
Mookhow wrote:
It isn't?


Is it? If it is, I'm left-handed. If it's not, I'm right-handed. Where's the poll option for that??
Author:  Corolinth [ Fri Apr 29, 2011 9:54 pm ]
Post subject: 
I don't actually think it's all that uncommon for people to masturbate with their off-hand. It's a very useful trait, when you think about it.
Author:  Stathol [ Fri Apr 29, 2011 10:09 pm ]
Post subject: 
You have gotten better at off-hand masturbation (1)

<insert joke about dual-wanking, etc.>
Author:  darksiege [ Fri Apr 29, 2011 10:25 pm ]
Post subject: 
well you click the mouse with your dominant hand... so you need to be able to rub one out with your off hand.

and... I knew it. All of those people who just rant in church and "speak in tongues".... it is not divine intervention: it is a stroke.
Author:  LadyKate [ Fri Apr 29, 2011 10:27 pm ]
Post subject:  Re:
darksiege wrote:
and... I knew it. All of those people who just rant in church and "speak in tongues".... it is not divine intervention: it is a stroke.


:spit:
Author:  Squirrel Girl [ Fri Apr 29, 2011 10:29 pm ]
Post subject:  Re: Re:
Stathol wrote:
Squirrel Girl wrote:
The opposite hand to the larger side of the brain is then dominant. Nerves from the left side of the brain generally cross over to the right side of the body, and vice versa.

Also, and please correct me if I'm wrong, but different nerve groups cross over at different points along the spine.


If you note, I stated that the nerves from the brain usually go to the other side body. I specifically and deliberately did not say where this happens, because it is complex. Yes usually does occur somewhere in the spinal cord. (except from the cerebellum, which does not cross over. ;) )
Author:  Diamondeye [ Sat Apr 30, 2011 4:48 pm ]
Post subject: 
I'm right handed, but when I play (well, played, haven't been on a team since high school) ice hockey, I shot left-handed. Everything else I do right-handed.. yes, LK, that too.
Author:  Lonedar [ Sat Apr 30, 2011 6:21 pm ]
Post subject: 
As I watch my sons play Little League and T-ball, I can really appreciate how much of an advantage being left handed will be to anyone that want to play sports at high levels. 2 teams, 28 kids, 2 lefties.

I'm right handed, except for *that* where I'm lefty. If I go right, it's like cheating on myself with myself.
Author:  Micheal [ Sat Apr 30, 2011 8:30 pm ]
Post subject: 
I was strongly lefty in everything until I broke my left shoulder. Then several things turned to right hand activity as I couldn't move my left arm much for months. All the heavy lifting is still right handed, almost everything else has slowly moved back to the left hand.
Author:  Sam [ Sun May 01, 2011 12:37 am ]
Post subject: 
Southpaw.

But as a lot of the world is righty built, I can do a lot with my right hand as well. My writing isn't nearly as good, but I can get by with my right hand. I use a regular RH mouse. I play the guitar and drums set up RH as well. I can even throw right handed.

The right hand can do quite a few things well, but my left hand has the best precision.

Wierd thing is, I'm right footed.
Author:  Jasmy [ Sun May 01, 2011 1:16 am ]
Post subject:  Re: Left or right handed?
I'm righty for everything, and I mean everything! :P
Author:  Arathain Kelvar [ Sun May 01, 2011 8:34 pm ]
Post subject:  Re:
Lonedar wrote:
As I watch my sons play Little League and T-ball, I can really appreciate how much of an advantage being left handed will be to anyone that want to play sports at high levels. 2 teams, 28 kids, 2 lefties.

I'm right handed, except for *that* where I'm lefty. If I go right, it's like cheating on myself with myself.


It was very helpful in this regard. Especially since being left handed in a right-handed world, I was naturally good from either side.

By the high level, at least in lacrosse, everyone could play either side. Except maybe the goalie who didn't need to.

Where it was most advantageous? Fencing. Nobody was quite sure how to fight me, but I was used to fighting righties. I fought a lefty and neither of us knew what to do.
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