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  • 1
    Electronic Resource
    Electronic Resource
    Personality and reproductive fitness (1990)
    Springer
    Behavior genetics 20 (1990), S. 563-568 
    Details
    ISSN: 1573-3297
    Keywords: personality ; fertility ; family size ; fitness ; extraversion ; neuroticism ; impulsivity ; genetic architecture ; evolution
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Psychology
    Notes: Abstract The relationship between reproductive success (number of biological children) and personality was explored in 1101 postmenopausal females from the Australian twin registry. The quadratic response surface relating fitness to extraversion (E) and neuroticism (N) showed a saddle point at intermediate levels of E and N. Selection was shown to be stabilizing, i.e.,having an intermediate optimum, along the axis low E, low N-high E, high N and more mildly disruptive, having greater fitness in the extremes, along the axis low N, high E-high N, low E. Neither dimension of personality considered by itself showed a significant linear or quadratic relationship to reproductive success. Sections through the fitness surface, however, show selection tends to favor high neuroticism levels in introverts and low neuroticism levels in extroverts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01065872
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  • 2
    Electronic Resource
    Electronic Resource
    Genetic and environmental factors in primary dysmenorrhea and its relationship to anxiety, depression, and neuroticism (1987)
    Springer
    Behavior genetics 17 (1987), S. 363-383 
    Details
    ISSN: 1573-3297
    Keywords: primary dysmenorrhea ; genetics ; anxiety ; depression ; neuroticism ; twins
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Psychology
    Notes: Abstract Over 1200 pairs of female monozygotic and dizygotic twins with regular menses reported on the amount of flow, severity of pain, and degree of limitation experienced during menstruation. Fifty-two percent of the women reported moderate or severe menstrual pain and these reports were fairly repeatable (0.62–0.80) over a 3-month interval. Heritabilities were 0.22 for flow, 0.38 for pain, and 0.36 for limitation. Covariations between menstrual symptoms and the symptoms and personality variables of state anxiety and depression and trait neuroticism were shown to be almost entirely genetic in origin. There was also gene action specifically affecting menstrual pain and also menstrual flow, but genetic variation in limitation was entirely due to genes also affecting flow, pain, and personality variables-neuroticism in particular.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01068137
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    Paper (German National Licenses)
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