Linked Life Data

15513137

Source:http://linkedlifedata.com/resource/pubmed/id/15513137

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2004-10-29
pubmed:abstractText
Testosterone, particularly prenatal testosterone, has been implicated in the aetiology of many extragenital sexually dimorphic traits. It is difficult to test directly for the effect of prenatal testosterone in humans. However, Manning, Scutt, Wilson, and Lewis-Jones (1998b) have recently shown that the ratio of the length of the 2nd and 4th digits (2D:4D) in right hands negatively predicts testosterone levels in men. As digit ratios are fixed in utero it may be that the 2D:4D ratio is associated with many prenatally determined sexually dimorphic traits. We tested this for one case by examining the relationship between lateralised hand performance (LHP), as measured by an Annett peg board, and 2D:4D ratio in rural Jamaican children. 2D:4D ratio was measured from photocopies and X rays of hands. A low 2D:4D ratio in the right hand of boys and girls (photocopies) and the right hand of boys only (X rays) was associated with a reduction in rightward performance asymmetry. In both samples the difference in 2D:4D ratio between the hands (2D:4D left hand-2D:4D right hand) showed the strongest relationship with LHP i.e. high ratio in the left and low in the right correlated with a tendency towards a fast performance with the left hand. It is suggested that the 2D:4D ratio may be associated with the expression of other sexually dimorphic behavioural traits.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Apr
pubmed:issn
1357-650X
pubmed:author
pubmed:issnType
Print
pubmed:volume
5
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
121-32
pubmed:year
2000
pubmed:articleTitle
The 2nd:4th digit ratio and asymmetry of hand performance in Jamaican children.
pubmed:affiliation
University of Liverpool, UK.
pubmed:publicationType
Journal Article