Twin Pillars to Desert Storm
In: Journal of Palestine studies: a quarterly on Palestinian affairs and the Arab-Israeli conflict, Band 23, Heft 2, S. 103
ISSN: 0377-919X, 0047-2654
In: Journal of Palestine studies: a quarterly on Palestinian affairs and the Arab-Israeli conflict, Band 23, Heft 2, S. 103
ISSN: 0377-919X, 0047-2654
Twin studies have revealed political ideology to be partially heritable. Neurological research has shown that ideological differences are reflected in brain structure and response, suggesting a direct genotype-phenotype link. Social and informational environments, however, also demonstrably affect brain structure and response. This leads to a "chicken-and-egg" question: do genes produce brains with ideological predispositions, causing the preferential absorption of consonant information and thereby forming an ideology, or do social and informational environments do most of the heavy lifting, with genetic evidence the spurious artifact of outdated methodology? Or are both inextricably intertwined contributors? This article investigates the relative contributions of genetic and environmental factors to ideological development using a role-play experiment investigating the development of opinions on a novel political issue. The results support the view that the process is bidirectional, suggesting that, like most traits, political ideology is produced by the complex interplay of genetic and (social/informational) environmental influences.
BASE
In: Research publications. The University of Minnesota. Studies in the social sciences 18
In: Journal of ethnic and migration studies: JEMS, Band 30, Heft 4, S. 807-814
ISSN: 1469-9451
In: Praeger special studies in U. S. economic and social development
In: The Journal of social, political and economic studies, Band 22, Heft 2, S. 254
ISSN: 0278-839X, 0193-5941
'Crime as Destiny: A Study of Criminal Twins,' by J. D. Lange and translated by Charlotte Haldane, is reviewed.
In: Political analysis: PA ; the official journal of the Society for Political Methodology and the Political Methodology Section of the American Political Science Association, Band 21, Heft 3, S. 368-389
ISSN: 1476-4989
In this article, we respond to Shultziner's critique that argues that identical twins are more alike not because of genetic similarity, but because they select into more similar environments and respond to stimuli in comparable ways, and that these effects bias twin model estimates to such an extent that they are invalid. The essay further argues that the theory and methods that undergird twin models, as well as the empirical studies which rely upon them, are unaware of these potential biases. We correct this and other misunderstandings in the essay and find that gene-environment (GE) interplay is a well-articulated concept in behavior genetics and political science, operationalized as gene-environment correlation and gene-environment interaction. Both are incorporated into interpretations of the classical twin design (CTD) and estimated in numerous empirical studies through extensions of the CTD. We then conduct simulations to quantify the influence of GE interplay on estimates from the CTD. Due to the criticism's mischaracterization of the CTD and GE interplay, combined with the absence of any empirical evidence to counter what is presented in the extant literature and this article, we conclude that the critique does not enhance our understanding of the processes that drive political traits, genetic or otherwise.
In: Regional Studies, S. 1-19
ISSN: 1360-0591
In: Millennium: journal of international studies, Band 28, Heft 1, S. 199-200
ISSN: 1477-9021
In: Security Handbook 2004: the twin enlargement of NATO and EU, S. 48-58
In: Studies in childhood and youth
In: Journal of Strategic and International Studies, Forthcoming
SSRN
In: Political analysis: official journal of the Society for Political Methodology, the Political Methodology Section of the American Political Science Association, Band 21, Heft 3, S. 350-349
ISSN: 1047-1987
In: Journal of ethnic and migration studies: JEMS, Band 30, Heft 4
ISSN: 1369-183X
In: Journal of ethnic and migration studies: JEMS, Band 30, Heft 4, S. 807-814
ISSN: 1369-183X