Laterality of Hand, Foot, Eye, and Ear in Twins

Reiß, Michael; Tymnik, G; Kogler, Petra; Kogler, Wolfgang; Reiß, Gilfe

doi:10.1080/135765099396999

Cited by 23 publications

(14 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Between 10 to 25% of MZ twins are discordant for handedness (Reiss et al, 1999;Ross et al, 1999;Sicotte et al, 1999). While both the RS and D/C models can explain discordant handedness in MZ twin pairs, both models still predict greater concordance in MZ than DZ twins.…”

mentioning

confidence: 94%

Special Twin Environments, Genetic Influences and their Effects on the Handedness of Twins and their Siblings

et al. 2003

View full text Add to dashboard Cite

It has been suggested that twinning may influence handedness through the effects of birth order, intra-uterine crowding and mirror imaging. The influence of these effects on handedness (for writing and throwing) was examined in 3657 Monozygotic (MZ) and 3762 Dizygotic (DZ) twin pairs (born 1893-1992). Maximum likelihood analyses revealed no effects of birth order on the incidence of left-handedness. Twins were no more likely to be left-handed than their singleton siblings (n = 1757), and there were no differences between the DZ co-twin and siblingtwin covariances, suggesting that neither intra-uterine crowding nor the experience of being a twin affects handedness. There was no evidence of mirror imaging; the co-twin correlations of monochorionic and dichorionic MZ twins did not differ. Univariate genetic analyses revealed common environmental factors to be the most parsimonious explanation of familial aggregation for the writing-hand measure, while additive genetic influences provided a better interpretation of the throwing hand data.

show abstract

mentioning

confidence: 94%

Special Twin Environments, Genetic Influences and their Effects on the Handedness of Twins and their Siblings

et al. 2003

View full text Add to dashboard Cite

show abstract

“…Hand preference is strongly -although not perfectly -correlated with foot preference, which is also strongly lateralized towards the right in humans at a population level 16,17 . Although left-footedness may be more closely linked to a reorganization of certain cortical functions than left-handedness 18 , it is not used as an exclusion criterion in neuroscience studies and has not been as extensively studied.…”

mentioning

confidence: 96%

On the other hand: including left-handers in cognitive neuroscience and neurogenetics

et al. 2014

View full text Add to dashboard Cite

Left-handers are often excluded from study cohorts in neuroscience and neurogenetics in order to reduce variance in the data. However, recent investigations have shown that the inclusion or targeted recruitment of left-handers can be informative in studies on a range of topics, such as cerebral lateralization and the genetic underpinning of asymmetrical brain development. Left-handed individuals represent a substantial portion of the human population and therefore left-handedness falls within the normal range of human diversity; thus, it is important to account for this variation in our understanding of brain functioning. We call for neuroscientists and neurogeneticists to recognize the potential of studying this often-discarded group of research subjects

show abstract

“…The prevalences of left-handedness and left-footedness in the maternal association group according to four age classes, that is, 1-3, 4-6, 7-9, and 10-15, were 32.6% (191/585), 23 13.5% (43/319), and 14.1% (44/313) for left-footedness, respectively. These prevalences decreased until 7-9 and then stabilized after 7-9.…”

Section: Resultsmentioning

confidence: 99%

“…Of these studies, that of Reiss et al (23) showed no difference in the prevalence of left-footedness of twins compared with that of singletons. It also showed no difference in prevalence between MZ and DZ twins, although the sample size was 100 pairs.…”

Section: Prevalences Of Handedness and Footednessmentioning

confidence: 99%

Nongenetic Factors Associated with Human Handedness and Footedness in Japanese Twin Children

Ooki

2006

Environ. Health Prev. Med.

View full text Add to dashboard Cite

Objective: The aim of this study is to clarify the factors related to the handedness and footedness of twins using two of the largest databases on Japanese twins available.Methods: The first group consisted of 1,131 twin pairs, all school children either 11 or 12 years old (S group), and the second group consisted of 951 twin pairs of different ages (1-15 years) in several maternal associations (M group). All data were gathered using a questionnaire. Factors associated with the handedness or footedness of twin individuals were analyzed by univariate and multivariate logistic analyses.Results: Multivariate logistic analysis showed that for handedness, birth year (OR=1.02) and neonatal asphyxia (OR=1.62) were selected in the S group, and sex (OR=1.34), the age of twins (OR=1.56), parity (OR=1.31), gestational age (OR=1.58), and family history (OR=1.82) were selected in the M group. For footedness, birth complications (OR=1.37) were selected in the S group, and sex (OR=1.33), the age of twins (OR=1.69), gestational age (OR=1.83), and family history (OR=2.49) were selected in the M group. Factors associated with handedness and footedness specific to twins, such as zygosity, placentation, birth order within twin pairs and the sex of the cotwin, were not found, although being a twin might have some effects.Conclusion: It was concluded that factors that affect handedness or footedness in general, such as sex, birth year, age, parity, neonatal asphyxia, gestational age, birth complications, and family history, seem to have stronger effects on handedness and footedness than being a twin.

show abstract

Laterality of Hand, Foot, Eye, and Ear in Twins

Cited by 23 publications

References 0 publications

Special Twin Environments, Genetic Influences and their Effects on the Handedness of Twins and their Siblings

Special Twin Environments, Genetic Influences and their Effects on the Handedness of Twins and their Siblings

On the other hand: including left-handers in cognitive neuroscience and neurogenetics

Nongenetic Factors Associated with Human Handedness and Footedness in Japanese Twin Children

Contact Info

Product

Resources

About