Latest Motor skills Stories
Despite the almost universal association of the right with life, right, positive and good things, and the left with death, inadequacy, negative and bad things, recent researches show that left-handed people hold the opposite association. Thus, left-handers become a critical case in which conceptual associations, result of a sensory-motor experience, and those that rely on linguistic and cultural uses, are contradictory. A sensory-motor experience in itself is capable of creating abstract...
Children who are mixed-handed, or ambidextrous, are more likely to have mental health, language and scholastic problems in childhood than right- or left-handed children, according to a new study published today in the journal Pediatrics.The researchers behind the study, from Imperial College London and other European institutions, suggest that their findings may help teachers and health professionals to identify children who are particularly at risk of developing certain problems.Around one...
There are areas in the brain devoted to our arms, legs, and various parts of our bodies. The way these areas are distributed throughout the brain are known as "body maps" and there are some significant differences in these maps between left- and right-handed people. For example, in left-handed people, there is an equal amount of brain area devoted to the left and right arms in both hemispheres. However, for right-handed people, there is more cortical area associated with right arm than the...
A new study by scientists in France offers a possible explanation for left-handedness, finding that the trait survived since prehistoric times in part due to its rarity, which offered benefits. The question of why some people are left-handed while the vast majority of humans are right-handed has puzzled scientists, who have long believed that genes that don't aid in the struggle to survive typically get squeezed out of the genetic code, leaving instead the ones that are fitter.However, in...
A new study suggests people who are "mixed-handed," those who are able to use both hands with equal dexterity, may have a harder time conceiving a child than righties or lefties.A study of more than 9,000 Danish couples showed that those in which one partner was mixed-handed, rather than exclusively right- or left-handed, tended to take slightly longer to conceive.Mixed-handedness, also known as cross-dominance, is being able to do different tasks better with different hands. For...
New research points a finger to left-handed people who are more likely to get anxious or feel shy or embarrassed about saying or acting on what they want. Researchers at Abertay University gave the study participants a behavioral test that gauges personal restraint and impulsiveness. Left-handers agreed more with statements such as "I worry about making mistakes." They also noted in the test that "criticism or scolding hurts me quite a bit." Dr Lynn Wright, who led the...
NEW YORK (Reuters) - Left-handed men, often seen as having an advantage over right-handed counterparts in sports like tennis, also enjoy much better paydays, a new study says. Left-handed men with at least some college education earned 15 percent more than similarly educated right-handers, while those who finished college earned about 26 percent more, wrote Christopher S. Ruebeck of Lafayette College, and Joseph Harrington and Robert Moffitt of Johns Hopkins University in a paper...
NEW YORK (Reuters) - Left-handed men, often seen as having an advantage over right-handed counterparts in sports like tennis, also enjoy much better paydays, a new study says.Left-handed men with at least some college education earned 15 percent more than similarly educated right-handers, while those who finished college earned about 26 percent more, wrote Christopher S. Ruebeck of Lafayette College, and Joseph Harrington and Robert Moffitt of Johns Hopkins University in a paper published by...
CINCINNATI--Scientists have found that the site in the brain that controls language in right-handed people shifts with aging--a discovery that might offer hope in the treatment of speech problems resulting from traumatic brain injury or stroke. The shift was documented by researchers led by Jerzy Szaflarski, MD, PhD, assistant professor in the Department of Neurology at the University of Cincinnati (UC) Academic Health Center, and Scott Holland, PhD, professor in the UC departments of...
WASHINGTON (Reuters) - Wild chimpanzees can be left or right-handed just as humans are, researchers reported on Monday in a study that sheds light on the evolution of "handedness." A study of 17 wild chimpanzees in Gombe National Park in Tanzania shows that most preferred to use their left hands when fishing for termites, although they used their right hands for other tasks such as cracking nuts. "Handedness runs in families of wild chimpanzees, with offspring hand use resembling the...
