Sentences with phrase «right handedness»

A study has revealed that asymmetrical genetic activity in the spinal cord determines people's left or right handedness, which starts in the mother's womb.

The study shared that even before the connection between motor cortex and spinal cord, the left or right handedness of the child is established.

(The L and D stand for Latin words for rotating to the left or the right, as some molecular structures can have left - or - right handedness or chirality).

Dr Louise McDowell, Dr Deborah Wells and Professor Peter Hepper from the School of Psychology at Queen's, recruited 44 cats for the study and found that while there was no overall population preference like the human preference for right handedness, there was a gender preference.

Not exact matches

One hemisphere may be slightly dominant, as with left - or right - handedness.»

Evidently, then, something else was needed to push early humans from a lateral preference in general to the extremely high levels of right - handedness we see today.

Right - handedness, then, may simply be an accidental by - product of the way most of our brains are wired up.

Indeed, this left - brained specialisation for language is even more common than right - handedness — which might suggest that as the left hemisphere evolved for language, the preference for the right hand may have intensified simply as a side effect.

When gender is added to the qualification that handedness requires, the generalization about left and right brain - mind becomes less certain.

Nine out of ten kids prefer their right hand, but being left - handed is perfectly normal — it's just not as common as right - handedness.

Your child at this stage of beginning writing may be starting to favor the use of one hand, although you won't be able to know true right - or left - handedness until later.

For instance, all living things exclusively use the right - handed form of the sugar ribose (the backbone of DNA), and many chiral pharmaceutical chemicals are only effective in one handedness; in the other, they can be toxic.

And because life has a preferred handedness, reactions that make both right - and left - handed compounds waste half the product.

Such lateralization, corresponding to our right - and left - handedness, suggests specialization in the brain's hemispheres, which is believed to improve its efficiency and which was first considered an exclusively human, then an exclusively vertebrate, attribute.

It knows — from watching humans play, and because Satz told it so — that most players prefer to have strength on their right sides rather than their left (perhaps an effect of our species» dominant right - handedness, a quirk computers do not share).

«The onset of left - right symmetry in vertebrates is still unknown, and our work may shed light on this,» says Reiko Kuroda, who led the team at the University of Tokyo, Japan, that reversed snail «handedness».

From atoms to human beings, nature is asymmetric with respect to chirality, or left - and right - handedness.

These conditions seemed to make left - handedness more likely, even when the mother was right - handed: The team found that among the low - risk pairs, 86 % of the offspring of right - handed females were right - handed; among the high - risk ones, the proportion was only 46 %.

It appears, says Hopkins, that «right - handedness is the «norm»» and that «at least some left - handedness may be due to pathological events» around or before birth.

Gravitational waves have a «handedness,» much like light waves, and can have left - and right - handed polarizations.

«Around 85 % of humans are right - handed; it seems the standard in human development,» De Kovel adds, «but genetic and environmental factors may provide alternative paths of development, such as left - handedness or two - handedness.

«How exactly this left - right genetic difference in the spinal cord leads to right - handedness is, however, not yet clear.»

Regardless of their own handedness, subjects with lefty relatives achieved an average score of 4.7 compared to 2.7 for those with only right - handed relatives.

«Earliest evidence in fossil record for right - handedness: Teeth striations of Homo habilis fossil date back 1.8 million years.»

David Frayer, KU professor emeritus of anthropology, is lead author on a recent study published in the Journal of Evolution that found striations on teeth of a Homo habilis fossil 1.8 million years old moved from left to right, indicating the earliest evidence in the fossil record for right - handedness.

By examining striations on teeth of a Homo habilis fossil, a new discovery led by a University of Kansas researcher has found the earliest evidence for right - handedness in the fossil record dating back 1.8 million years.

De Bivort's group analyzed «handedness» — a preference to turn left or right — in 150 different strains of flies.

Right - handedness, to this way of thinking, is the most obvious mark of the genetic instructions that separate us from speechless, symmetric beasts.

«If we accept that there could be a genetic basis for both left - and right - handedness,» Hopkins says, «what really matters is whether or not you're expressing your genes.

One Oxford neurobiologist went so far as to argue that right - handedness could be traced back 200,000 years to a single mutation — a sort of genetic Big Bang that created hemispheric specialization, language, and higher cognitive functioning in one go.

And al - though left - handedness runs in families — notably in Queen Elizabeth II, Prince Charles, and Prince William — more than two - thirds of all lefties are born to right - handed couples.

In people today, the same left - sided bias in brain organization is associated with right - handedness.

Just as right - handedness indicates left - brain dominance in most humans, brain laterality was determined in birds by observing which eye each bird used to fixate on a piece of food and which foot grabbed it.

The concept of handedness — of left and right, say, or of clockwise and anti-clockwise — is deceptively simple.

In a recent post, I proposed a riddle on handedness and how one could communicate one's notions of left and right to faraway aliens.

The study has been successful in answering the tricky question of left - and right - handedness among people.

The MOFs also possess a particular handedness known as «chirality» — like a left - handed person vs. a right - handed person — that selectively binds with molecular samples that also possess this handedness.

We found no significant effect of handedness on CT, CSA or CV asymmetries, although a trend for a significant difference in the SULC asymmetry of the Rolandic genu was present (leftward in right - handers, rightward in left - handers).

On the left, many insist that NCLB is «underfunded,» while on the right many bridle at its heavy - handedness and its seeming inability to foster more choices among schools.

The 2015 Porsche Macan is a direct result of the successes of the Panamera and Cayenne, with a name derived from the Indonesian word for tiger and a surprisingly broad price range depending on your heavy - handedness with both the options sheet and your right foot.

A new study closely examined «handedness» in felines, and found that male cats were more likely to be left - pawed while females preferred the right.

Right brain (left handedness) may have specialization in responding to novelty; this might have adaptive significance particularly in males of many species.

Humans experience right - handed and left - handedness.

That disregard for right or left handedness, and the controls.

All buttons and controls are symmetrically placed, so right and left handedness is switchable through a software config checkbox.

Valve says VR players can improve their experiences with SteamVR Input by setting up control schemes for right - or left - handedness, to overcome disabilities, or simply for personal preference.

The distinction capitalized on long - standing cultural associations of right - and left - handedness with, respectively, trust and suspicion — in this case, of the status quo.»

Finally, reaffirming the judiciary's attempts at even - handedness regarding headcoverings and the niqab, in 2012 the Supreme Court of Canada issued a judgment29 that weighed the rights of a witness to wear a niqab against the constitutional right of the accused to a fair trial, where the credibility of the veiled witness was in question.

Good news lefties, buried in the settings, you can change the «handedness» from the default right handed.

By comparison, each Touch controller is molded for right - or left - handedness, meaning you'll never have that issue.