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- Dreber Almenberg, Anna, et al.
(författare)
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Ancestry and allelic variation of the dopamine receptor D4 (DRD4) gene
- 2010
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Ingår i: Social Cognitive and Affective Neuroscience. - : Oxford University Press. - 1749-5016 .- 1749-5024. ; 5:2-3, s. 194-202
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Tidskriftsartikel (refereegranskat)abstract
- The 7 repeat (7R) allele of the dopamine receptor D4 gene has been associated with attention deficit hyperactivity disorder and risk taking. On the cross-population scale, 7R allele frequencies have been shown to be higher in populations with more of a history of long-term migrations. It has also been shown that the 7R allele is associated with individuals having multiple ancestries. Here, we conduct a replication of this latter finding with two independent samples. Measures of subjects’ ancestry are used to examine past reproductive bonds. The individuals’ history of interracial/ancestral dating and their feelings about this are also assessed. Tentative support for an association between multiple ancestries and the 7R allele was found. These results are dependent upon the method of questioning subjects about their ancestries, with only finer-scale measures of ancestry being associated with 7R. Interracial dating and feelings about interracial pairing were not related to the presence of the 7R allele. This study provides continued support for a role for the 7R allele in migration and/or mate choice patterns. However, replications and extensions of this study are needed and the way ancestry/race is assessed must be carefully considered.
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| 2. |
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| 3. |
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| 4. |
- Dreber Almenberg, Anna, et al.
(författare)
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The Dopamine Receptor D4 Gene (DRD4) and Self-Reported Risk Taking in the Economic Domain
- 2011
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- Background: Recent evidence suggests that individual variation in risk taking is partly due to genetic factors. Methodology/Principal Findings: We explore how self-reported risk taking in different domains correlates with variation in the dopamine receptor D4 gene (DRD4). Past studies conflict on the influence of DRD4 in relation to risk taking. A sample of 237 serious tournament contract bridge players, experts on risk taking in one domain, was genotyped for having a 7-repeat allele (7R+) or not (7R-) at DRD4. No difference was found between 7R+ and 7R- individuals in general risk taking or in several other risk-related activities. Conclusion: In this sample of individuals (tournament bridge players) there is no relationship between DRD4 genotype and self-reported risk taking in different domains.
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| 5. |
- Eisenberg, Dan T.A., et al.
(författare)
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Assortative Human Pair-Bonding for Partner Ancestry and Allelic Variation of the Dopamine Receptor D4 (DRD4) Gene
- 2010
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Ingår i: Social Cognitive and Affective Neuroscience. - : Oxford University Press (OUP): Policy C - Option D. - 1749-5016 .- 1749-5024. ; 5:2-3, s. 194-202
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Tidskriftsartikel (refereegranskat)abstract
- The 7 repeat (7R) allele of the dopamine receptor D4 gene has been associated with attention deficit hyperactivity disorder and risk taking. On the cross-population scale, 7R allele frequencies have been shown to be higher in populations with more of a history of long-term migrations. It has also been shown that the 7R allele is associated with individuals having multiple ancestries. Here, we conduct a replication of this latter finding with two independent samples. Measures of subjects' ancestry are used to examine past reproductive bonds. The individuals' history of interracial/ancestral dating and their feelings about this are also assessed. Tentative support for an association between multiple ancestries and the 7R allele was found. These results are dependent upon the method of questioning subjects about their ancestries, with only finer-scale measures of ancestry being associated with 7R. Interracial dating and feelings about interracial pairing were not related to the presence of the 7R allele. This study provides continued support for a role for the 7R allele in migration and/or mate choice patterns. However, replications and extensions of this study are needed and the way ancestry/race is assessed must be carefully considered.
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| 6. |
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| 7. |
- Rand, D.G., et al.
(författare)
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Religious motivations for cooperation : An experimental investigation using explicit primes
- 2014
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Ingår i: Religion, Brain and Behavior. - : Taylor & Francis (Routledge): STM, Behavioural Science and Public Health Titles. - 2153-599X. ; 4:1, s. 31-48
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Tidskriftsartikel (refereegranskat)abstract
- The role of religion in human cooperation remains a highly contested topic. Recent studies using economic game experiments to explore this issue have been largely inconclusive, yielding a range of conflicting results. In this study, we investigate the ability of religion to promote cooperation by using explicit theological primes. In the first study, conducted in a church, we find that subjects who report a stronger connection with a Christian passage about charitable giving are subsequently more likely to cooperate in a one-shot prisoner's dilemma game. In the second study, conducted over the Internet, we find that Christian subjects are more likely to cooperate after reading a Christian passage than a neutral one. However, in the same study, we find that Hindu and secular passages have no significant effect on Christians, and that none of the passages (Christian, Hindu, or secular) have an effect on non-Christians. Our results show the potential power of explicitly religious exhortations that promote cooperation, and also their selectivity. © 2013 TaylorXX1Francis.
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