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Why is almost everyone right-handed? A new study connects it to bipedalism

ox.ac.uk

131–140 of 263 posts

Re: Why is almost everyone right-handed? A new study connects it to bipedalism

#131
post #100

Earlier quoted context omitted.

the risk is one of being unable to extract the weapon expediently. there is an unacceptable risk of having to abandon it.

Unless you're also trying to send a message where leaving the weapon is the message

such as, a sculpture or other improvisation perhaps even advertising material.

https://external-content.duckduckgo.com/iu/?u=https%3A%2F%2F... [JPG]

Re: Why is almost everyone right-handed? A new study connects it to bipedalism

#132

The article didn't really help me understand what it was about bipedalism that resulted in a right handed preference. Also in my family left hand dominates, we are a cluster of left handed people. My theory is if any child wants help with fine motor control the help is provided by a left hand to a left hand.

Oddly enough, a lot of my "nerd friends" are left handed, and I'm also left handed. /shrug

Re: Why is almost everyone right-handed? A new study connects it to bipedalism

#133

I always faced left when riding a skateboard back in the day, otherwise known in skater parlance as being "goofy-footed". Facing right felt as difficult as writing with my left hand. I always wondered whether that was just the way I first rode a skateboard and it stuck, but if that was the case, I would expect the distribution of which skateboarders face which way to be about even. But goofy-footed riders are in the…

I think this is probably related to which eye is more dominant for you. I've never skateboarded, but if I imagine myself doing it, it would also be facing left. And it's because my right eye is dominant and I would like that to be facing forward.

> I think this is probably related to which eye is more dominant for you.

I think it's more about a person's personal stability/biomechanics. The back foot is the stable one, forward is the "quick" lead. The preferred "plant" foot when kicking a ball is the stable one (though many people use both, so this is best used only when there is a strong preference), the one used to push off with when at the bottom of stairs or jumping is the stable one (the lead foot is the `quick` one). The best way I found to help determine footedness: have a person stand straight (feet together) walk around them (pretending to look at posture or something), once behind them push them forward (evenly with some force). Watch for which foot they catch themselves with. Thats the lead foot.

As for the eye dominance, in archery having the right eye dominant means your stance is regular (left foot forward). An archery open stance is near identical to a snowboard neutral stance (~ +15°, 0°). The 2 most important things to get right in (olympic recurve) archery is eye dominance and a proper open stance. As a goofy footed snowboarder and a right eye dominant archer, the archery stance took awhile for me to adapt too. It still feels weird.

Re: Why is almost everyone right-handed? A new study connects it to bipedalism

#134

I almost never see people using a left hand mouse these days. As younger people start using computers they generally will learn with right-handed mice and will thus develop those fine motor skills in that hand. I wonder if this will make right-handedness even more dominant.

I have switched between left and right mouse every few years when I was younger, just to see what works best for me. I could adapt to both, even though I can only write and draw with my left hand. I have settled with left-hand mouse because I feel like I can be a bit more precise for graphical works and shooters.

With the trackpad on my Laptop, I switch quite frequently and haven’t yet noticed any difference in precision. The movement is very different than mouse or pen control though and comes more from individual/multiple fingers instead of the whole hand or arm, so I guess that explains it.

Re: Why is almost everyone right-handed? A new study connects it to bipedalism

#135

I always faced left when riding a skateboard back in the day, otherwise known in skater parlance as being "goofy-footed". Facing right felt as difficult as writing with my left hand. I always wondered whether that was just the way I first rode a skateboard and it stuck, but if that was the case, I would expect the distribution of which skateboarders face which way to be about even. But goofy-footed riders are in the…

Do you hold a baseball bat lefty too?

I skate/surf goofy (or used to... haven't done much of either lately :P) and prefer to hold a baseball bat or a golf club lefty, despite being right-handed. And I have an immediate family member who's left-handed but bats righty!

Re: Why is almost everyone right-handed? A new study connects it to bipedalism

#136

I almost never see people using a left hand mouse these days. As younger people start using computers they generally will learn with right-handed mice and will thus develop those fine motor skills in that hand. I wonder if this will make right-handedness even more dominant.

As a lefty I never had any problems adapting to a right hand mouse and actually find the keyboard to be better suited as a "left hand" activity and would have a hard time switching it up.

Re: Why is almost everyone right-handed? A new study connects it to bipedalism

#137

I almost never see people using a left hand mouse these days. As younger people start using computers they generally will learn with right-handed mice and will thus develop those fine motor skills in that hand. I wonder if this will make right-handedness even more dominant.

As a lefty I never had any problems adapting to a right hand mouse and actually find the keyboard to be better suited as a "left hand" activity and would have a hard time switching it up.

[dead]

Re: Why is almost everyone right-handed? A new study connects it to bipedalism

#138

I always faced left when riding a skateboard back in the day, otherwise known in skater parlance as being "goofy-footed". Facing right felt as difficult as writing with my left hand. I always wondered whether that was just the way I first rode a skateboard and it stuck, but if that was the case, I would expect the distribution of which skateboarders face which way to be about even. But goofy-footed riders are in the…

Do you hold a baseball bat lefty too? I skate/surf goofy (or used to... haven't done much of either lately :P) and prefer to hold a baseball bat or a golf club lefty, despite being right-handed. And I have an immediate family member who's left-handed but bats righty!

I’m the opposite… write lefty bit bat/swing (rackets and gol) righty. Not sure about surfing - I only paddle board and the stance is more straight-on (because you paddle both sides to avoid turning in a circle).

Of course, I’m terrible at baseball and my handwringing is atrocious, so maybe I’m just broken.

Re: Why is almost everyone right-handed? A new study connects it to bipedalism

#139
post #128

I always faced left when riding a skateboard back in the day, otherwise known in skater parlance as being "goofy-footed". Facing right felt as difficult as writing with my left hand. I always wondered whether that was just the way I first rode a skateboard and it stuck, but if that was the case, I would expect the distribution of which skateboarders face which way to be about even. But goofy-footed riders are in the…

I'm right-handed, but I snowboard goofy. Coincidence (or not?) my left leg is dominant. I can kick a ball just fine with my left foot, but when I try to kick with my right foot I feel like I'm going to capsize. When I'm riding a bike and I have to stop, my right foot goes down. When I start again I use my left leg to muscle the crank through the first revolution or two.

You can be right handed and left footed (and vice versa), and you'd typically snowboard and skateboard etc with your dominant foot.

Re: Why is almost everyone right-handed? A new study connects it to bipedalism

#140
post #93

Earlier quoted context omitted.

The original paper is titled "Bipedalism and brain expansion explain human handedness". It doesn't seek to explain why we have a right-handed preference specifically (vs left-handed), but rather why humans have such a strong handedness preference compared to ancestors who had only a mild right-handed preference. IOW, why handed vs ambidextrous, not so much why left-handed vs right-handed.

> why handed vs ambidextrous Did it even explain that? I'm ambidextrous, I have no handedness bias, so whichever I pick up to first learn something is the hand I use. So I'm a mix of left-handed and right-handed depending on the task. And yet I didn't really understand why that's odd because of my bipedalism?

There is also a category of people who are “mixed-handed”, who have a strong handedness preference for a given task, but which hand one prefers varies based on the task. I didn’t know about this category until recently, but it describes my personal experience.

Mildly informative Wikipedia article: https://en.wikipedia.org/wiki/Cross-dominance

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