HANDEDNESS IN CHILDREN WITH BIRTHWEIGHTS BELOW 1000 g

O’Callaghan, Michael; Tudehope, David; Dugdale, A. E.; Mohay, Heather; Burns, Yvonne; Cook, Francesca

doi:10.1016/s0140-6736(87)91719-3

Cited by 71 publications

(39 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Low birth weight is associated with perinatal complications, neurological problems and a number of adult pathologies. There is evidence for an excess of lefthandedness among extremely low birth weight babies (O'Callaghan et al 1987;Powls et al 1996).…”

Section: Developmental Factorsmentioning

confidence: 99%

See 1 more Smart Citation

Why are some people left-handed? An evolutionary perspective

Llaurens

Raymond

Faurie

2008

Phil. Trans. R. Soc. B

158

134

View full text Add to dashboard Cite

Since prehistoric times, left-handed individuals have been ubiquitous in human populations, exhibiting geographical frequency variations. Evolutionary explanations have been proposed for the persistence of the handedness polymorphism. Left-handedness could be favoured by negative frequency-dependent selection. Data have suggested that left-handedness, as the rare hand preference, could represent an important strategic advantage in fighting interactions. However, the fact that left-handedness occurs at a low frequency indicates that some evolutionary costs could be associated with left-handedness. Overall, the evolutionary dynamics of this polymorphism are not fully understood. Here, we review the abundant literature available regarding the possible mechanisms and consequences of left-handedness. We point out that hand preference is heritable, and report how hand preference is influenced by genetic, hormonal, developmental and cultural factors. We review the available information on potential fitness costs and benefits acting as selective forces on the proportion of left-handers. Thus, evolutionary perspectives on the persistence of this polymorphism in humans are gathered for the first time, highlighting the necessity for an assessment of fitness differences between right-and left-handers.

show abstract

Section: Developmental Factorsmentioning

confidence: 99%

“…Indeed low birth weight greatly increases the risk of early brain damage (Stewart et al 1999). An alternative possibility is that foetal brain development is interrupted by birth (O'Callaghan et al 1987). Thus, small or premature babies would have reached a different stage of cortical growth than heavier or full-term ones.…”

Section: Developmental Factorsmentioning

confidence: 99%

Why are some people left-handed? An evolutionary perspective

Llaurens

Raymond

Faurie

2008

Phil. Trans. R. Soc. B

158

134

View full text Add to dashboard Cite

show abstract

“…O'Callaghan et al [22] described non-right-handedness in 54% of children with extremely low birth weights compared with 8% among those with higher birth weights. Non-right-handedness may therefore be a marker of neural pathology.…”

Section: Introductionmentioning

confidence: 99%

Non-Right-Handedness and Obstetrical Complications in Paranoid Hallucinatory Schizophrenics

Sperling

Martus²,

Barocka³

1999

Psychopathology

View full text Add to dashboard Cite

In previous studies a link between pregnancy complications, minor physical anomalies and non-right-handedness was described in schizophrenic patients. There is evidence of an anomaly in the lateralization process in schizophrenia. Many studies of handedness and schizophrenia have found that schizophrenic patients have an increased rate of non-right-handedness compared with normal subjects. The contemporary neurodevelopmental hypothesis of schizophrenia emerged from pathobiological findings. In addition there is evidence for early brain lesions and malformations in fetal brain development. Especially pregnancy and birth complications have been found to be a risk factor for the later development of schizophrenia. In this study we set out to test the possible association between diagnosis and handedness, diagnosis and risk factors, as well as gender and handedness for 60 patients (30 men, 30 women) and 60 controls. The percentage of non-right-handedness was significantly elevated in the patient group (p = 0.0025). In a gender-specific analysis this result could be confirmed only for male patients. Peri- and postnatal developmental risk factors were significantly elevated in schizophrenics compared with controls. The percentage of all risk factors in the male group of schizophrenic non-right-handers was significantly elevated compared with right-handed male schizophrenics.

show abstract

“…The present results did not reveal any association between birth order and left-handedness, as shown in Table 2. It was also suggested that the effect of low birth weight on left-handedness is smaller than that of short gestational age, although the increased prevalence of left-handedness has often been reported in children with a very low birth weight, for example, below 1000 g (28).…”

Section: Factors Associated With Handedness/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

HANDEDNESS IN CHILDREN WITH BIRTHWEIGHTS BELOW 1000 g

Cited by 71 publications

References 4 publications

Why are some people left-handed? An evolutionary perspective

Why are some people left-handed? An evolutionary perspective

Non-Right-Handedness and Obstetrical Complications in Paranoid Hallucinatory Schizophrenics

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

Contact Info

Product

Resources

About