2006-10-25 06:36:50 · 15 answers · asked by shotter 1 in Science & Mathematics ➔ Other - Science
This tendency appears to be innately programmed into our brains. Here are a couple of interesting articles on the subject.
2006-10-25 06:59:01 · answer #1 · answered by just♪wondering 7 · 1⤊ 0⤋
I'm not quite sure at what time this is determined. I just watch which hand a baby uses to grab things - then I know if they are left or right handed. One of my grand daughters grabbed either hand, eats with either and writes with either, however, she does use the right more than the left.
2006-10-25 06:43:30 · answer #2 · answered by Anonymous · 1⤊ 0⤋
This is MOSTLY attributalbe to genetics and so is determined at conception, but there are other (environmental) factors, too, that contribute. Handedness can be seen very early, but it is generally clear by school age.
Both left handedness and handedness are covered in Wikipedia and the articles are good and thought-provoking. (For example, could right handedness be an evolutionary advantage and are we de-selecting left-handers (over time)?)
2006-10-25 06:48:34 · answer #3 · answered by Janet712inEngland 5 · 1⤊ 0⤋
Right handed
2016-05-22 13:07:46 · answer #4 · answered by ? 4 · 0⤊ 0⤋
I'm left handed and both my children are right handed. As soon as they start to pick things up you know by which hand they prefere. So very early on.
2006-10-25 06:46:19 · answer #5 · answered by jeeps 6 · 0⤊ 0⤋
you know if a baby is going to b left r right handed the 1st time he/she can hold a feeding bottle themselves
2006-10-25 06:41:41 · answer #6 · answered by raymondsloane@btinternet.com 1 · 0⤊ 0⤋
Before they're born. I have an ultrasound of my daughter with her lft hand in her mouth. Possibly it doesn't mean anything, but she is left handed.
2006-10-25 06:45:40 · answer #7 · answered by nursesr4evr 7 · 1⤊ 0⤋
My two nieces demo'd left handedness when first trying to feed themselves. I think that you are predisposed to being left or right handed.
2006-10-25 06:45:56 · answer #8 · answered by Jo 2 · 1⤊ 0⤋
It's not until babies start playing with toys that you know which one they're going to use, but their brain new before birth. You can retrain it with enough practice if you wanted to, but why bother. Let them use use whatever hand feels more natural to them.
2006-10-25 06:49:44 · answer #9 · answered by ? 6 · 0⤊ 1⤋
you develop as right or left handed very early on before birth...you should watch national geographic they tell you that good stuff i just learned it myself
2006-10-25 06:47:35 · answer #10 · answered by ELIZY 4 · 1⤊ 0⤋