Contributions of twin research to psychology.

Vandenberg, Steven G.

doi:10.1037/h0023890

Cited by 123 publications

(27 citation statements)

References 89 publications

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“…This supports the view first ventured by Galton in 1875 and later confirmed by Newman, Freeman & Holzinger (1937) that the handwriting of identical twins appeared to be no more alike than that of fraternal twins (Vandenberg, 1966).…”

Section: Zygositysupporting

confidence: 83%

A twin study of graphology

Faust¹,

Price²

1972

J. Biosoc. Sci.

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The object of the study was to make an objective assessment of the validity of ascertaining personality from handwriting. The subjects chosen for the research were twenty-four pairs of identical and twenty-four pairs of non-identical twins. Personality scores were obtained from each subject, and each pair of twins was rated by their parent(s) on a questionnaire comparing their personality and development. These ratings were compared with ratings of within-pair personality differences based on the examination of samples of handwriting by a consultant graphologist and by a team of eight amateurs. The results showed that handwriting is not likely to be helpful in the study of neuroticism and is of no value in the determination of zygosity. In the case of extraversion, however, the correlations were low but in the expected direction and with reasonably good internal consistency.

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Section: Zygositysupporting

confidence: 83%

A twin study of graphology

Faust¹,

Price²

1972

J. Biosoc. Sci.

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“…Despite a sometimes well-founded pessimism about the effectiveness of earlier efforts to contribute to an understanding of the roles of heredity and environment in human behaviour generally, greater sophistication about the complexities of genetics and personality measurement has resulted in significant advances in human behaviour genetics which are not generally appreciated (Vandenberg, 1965). Recent overviews of interest to developmental psychologists may be found in Gottesman (1963b), McClearn (1964), and Vandenberg (1966). The present paper is a preliminary report in a broader research programme into the origins of individual differences in both normal and abnormal personality characteristics (Gottesman, 1963a(Gottesman, , 1965Gottesman and Shields, 1966a, b).…”

Section: Introductionmentioning

confidence: 83%

Genetic Variance in Adaptive Personality Traits*

Gottesman¹

1966

Child Psychology Psychiatry

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“…However Lind et al (2009) did not find an association between polymorphisms in CHRM2 and g factors extracted from an assortment of cognitive tests in three independent samples. Despite problems in replicating effects of specific genes on behavioral measures (Chabris et al, 2013) methods are beginning to be developed that may account for traits that have previously been shown to be heritable by methods such as twin studies (Vandenberg, 1966). One issue concerns the selection of the appropriate phenotype since combining genetically unrelated measures may obscure results.…”

Section: Sources Of Individual Differencesmentioning

confidence: 99%

How neuroscience can inform the study of individual differences in cognitive abilities

McFarland

2017

Reviews in the Neurosciences

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AbstractTheories of human mental abilities should be consistent with what is known in neuroscience. Currently, tests of human mental abilities are modeled by cognitive constructs such as attention, working memory, and speed of information processing. These constructs are in turn related to a single general ability. However, brains are very complex systems and whether most of the variability between the operations of different brains can be ascribed to a single factor is questionable. Research in neuroscience suggests that psychological processes such as perception, attention, decision, and executive control are emergent properties of interacting distributed networks. The modules that make up these networks use similar computational processes that involve multiple forms of neural plasticity, each having different time constants. Accordingly, these networks might best be characterized in terms of the information they process rather than in terms of abstract psychological processes such as working memory and executive control.

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Contributions of twin research to psychology.

Cited by 123 publications

References 89 publications

A twin study of graphology

A twin study of graphology

Genetic Variance in Adaptive Personality Traits*

How neuroscience can inform the study of individual differences in cognitive abilities

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