A large-scale population study of early life factors influencing left ...
Jan 24, 2019 · Hand preference is a conspicuous variation in human behaviour, with a worldwide proportion of around 90% of people preferring to use the right hand for many tasks, and 10% the left hand. We...
A large-scale population study of early life factors influencing left ...
We confirmed a number of previously reported early life factors that influence hand preference, which we discuss in detail further below. In addition, we confirmed a very low SNP-heritability for left-hand preference, but found no genetic correlation with birthweight or being breastfed.
A large-scale population study of early life factors influencing left ...
Jan 24, 2019 · We used the large cohort of the UK biobank (~500,000 participants) to study possible relations between early life factors and adult hand preference. The probability of being left-handed was affected by the year and location of birth, likely due to cultural effects.
Why are some people left-handed? An evolutionary perspective
Three factors may explain the reduced longevity of left-handers: (i) prenatal and perinatal birth stressors, more probable in left-handers, (ii) genetic effects and intrauterine hormones may have reduced the effectiveness of the immune system of left-handers, and (iii) left-handers may have more lethal accidents.
Hand preference is a conspicuous variation in human behaviour, with a worldwide proportion of around 90% of people preferring to use the right hand for many tasks, and 10% the left hand. We used the large, general population cohort of the UK biobank (~500,000 participants) to …
A large-scale population study of early life factors influencing left ...
The probability of being left-handed was affected by the year and location of birth, likely due to cultural effects. In addition, hand preference was affected by birthweight, being part of a multiple birth, season of birth, breastfeeding, and sex, with each effect remaining significant after accounting for all others.
8 New Scientific Findings About Left-Handedness
May 21, 2024 · Different early life factors influence left-handedness. But genes are not the whole story. Another Dutch study from 2019 showed that different early life factors also influence whether we...
The World’s Biggest Study on Left-Handedness - Psychology Today
May 22, 2024 · They found that across studies, the prevalence of left-handedness lies between 9.3% and 18.1%, with the best overall estimate being 10.6%. So given these new results, how many people in the world...
Left-Handedness Is Influenced by Early Life Factors
Feb 24, 2019 · Initially, scientists thought that left-handedness might be caused mostly by genetic influences, as it runs in families and is to some extent heritable. However, in 2009, a large scale twin study...
A large-scale population study of early life factors influencing left ...
Apr 20, 2018 · Hand preference is a conspicuous variation in human behaviour, with a worldwide proportion of around 90% of people preferring to use the right hand for many tasks, and 10% the left hand. We used the large cohort of the UK biobank (~500,000 participants) to study possible relations between early life factors and adult hand preference.