Strongly ‘handed’ squirrels less good at learning
Gray squirrels who have a preference for using either their right or left paw perform worse on learning tasks.... Read More...
handedness
Genes associated with left-handedness linked with shape of the brain’s language regions
Four genetic regions have been identified as playing a role in left-handedness. Three of the four genes were associated with proteins involved in brain development and structure. Neuroimaging revealed those who were left-handed had increased functional connectivity between left and right language networks. Researchers also found correlations between the genetic regions associated with left-handedness and slightly reduced Parkinson's risk, but a slightly increased risk for schizophrenia.... Read More...
Lefty, righty brains count on same area for numbers
A new study debunks the popular myth that handedness plays a role in the lateralization of number processing in the brain. The study revealed, regardless of which is your dominant hand, the brain's location for number processing is the same.... Read More...
Being left-handed doesn’t mean you are right-brained – so what does it mean?
Researchers look at the myths and the facts about left-handedness.... Read More...
Why two out of three babies are cradled on the left
A new study reveals why most people prefer to cradle a baby on the left side.... Read More...
Long-Term Breastfeeding Sheds Light on Whether an Infant Becomes Left or Right Handed
According to researchers, the prevalence of being left-handed is lower in children who were breastfed compared to those who were bottle fed. The study proposes breastfeeding may optimize brain lateralization towards dominant handedness.... Read More...
Why People Have Lateral Preferences When Kissing and Hugging
A new study reveals why we have a lateral preference when it comes to displaying social emotions. Researchers say that while handedness plays a part in why we prefer to hug or kiss on one side, emotional content also plays a role.... Read More...
Why Being Left Handed Matters for Mental Health
Researchers believe some treatments for mental health conditions may be ineffective, or even dangerous for left handed people. A new study reports areas of the brain housing alertness and determination may be on the right side for left dominant people. The new theory suggests the location of a person's neural system for emotion depends on their handedness. ... Read More...
Having One Eye Better Than the Other May Explain Ants’ Left Bias
A new study reveals behavioral lateralization may be hardwired during development rather than something learned from experience.... Read More...
Right or Left Handed? Handedness is Determined During Gestation
The preference to use one hand over the other is already defined by the 18th week of gestation, a new study reports.... Read More...
Right Handed Baseball Players More Successful When Batting Left Handed
Astros and Dodgers players take note, your batting hand may determine your success in a game. Researchers report baseball players who throw and bat left-handed should have a batting advantage as they have less neurological hemispheric lateralization than right handers.... Read More...
Humans Hardwired to Lean to the Right While Kissing the World Over
Researchers suggest that, regardless of where we are from in the world, humans are hardwired to lean to the right when kissing a romantic partner. The findings could have wider implications for neuroscience and cognitive sciences, the researchers report.... Read More...