Genetic Epidemiology, Psychiatric Genetics, Asthma Genetics and Statistical Genetics Laboratories investigate the pattern of disease in families, particularly identical and non-identical twins, to assess the relative importance of genes and environment in a variety of important health problems.
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PMID
7993323
TITLE
Type A personality in Australian twins.
ABSTRACT
We examined the genetic and environmental determinants of Type A behavior in 200 pairs of same-sex twins as measured by the structured interview (SI) of Rosenman and Friedman and by the Bortner questionnaire (BARS). As noted previously, these measures are poorly correlated (r = .30). Quite different heritabilities were found for the two measures (63% for SI, 23% for BARS), and the correlation between the two was found to be largely genetic. Although the sample size meant that differences in correlation between MZ and DZ twins on the BARS were not significant in univariate analyses, they were suggestive of twin competition effects, as other twin studies have found. We conclude that further genetic analyses should concentrate on component behaviors rather than the overall Type A construct.
DATE PUBLISHED
1994 Sep
HISTORY
PUBSTATUS PUBSTATUSDATE
pubmed 1994/09/01
medline 1994/09/01 00:01
entrez 1994/09/01 00:00
AUTHORS
NAME COLLECTIVENAME LASTNAME FORENAME INITIALS AFFILIATION AFFILIATIONINFO
Duffy DL Duffy D L DL Epidemiology Unit, Queensland Institute of Medical Research, Brisbane, Australia.
Manicavasagar V Manicavasagar V V
O'Connell D O'Connell D D
Silove D Silove D D
Tennant C Tennant C C
Langelludecke P Langelludecke P P
INVESTIGATORS
JOURNAL
VOLUME: 24
ISSUE: 5
TITLE: Behavior genetics
ISOABBREVIATION: Behav. Genet.
YEAR: 1994
MONTH: Sep
DAY:
MEDLINEDATE:
SEASON:
CITEDMEDIUM: Print
ISSN: 0001-8244
ISSNTYPE: Print
MEDLINE JOURNAL
MEDLINETA: Behav Genet
COUNTRY: United States
ISSNLINKING: 0001-8244
NLMUNIQUEID: 0251711
PUBLICATION TYPE
PUBLICATIONTYPE TEXT
Journal Article
Twin Study
COMMENTS AND CORRECTIONS
GRANTS
GENERAL NOTE
KEYWORDS
MESH HEADINGS
DESCRIPTORNAME QUALIFIERNAME
Adolescent
Adult
Aged
Australia
Female
Humans
Male
Middle Aged
Models, Genetic
Personality Assessment
Phenotype
Twins, Dizygotic psychology
Twins, Monozygotic psychology
Type A Personality psychology
SUPPLEMENTARY MESH
GENE SYMBOLS
CHEMICALS
OTHER ID's