What drives interindividual variation in scholastic achievement: Lessons learned from behavioral genetic studies

2016 ◽  
Vol 101 ◽  
pp. 482
Author(s):  
J. Gottschling ◽  
E. Hahn ◽  
M. Spengler ◽  
F.M. Spinath
2004 ◽  
Vol 20 (3) ◽  
pp. 365-376 ◽  
Author(s):  
Hui Shen ◽  
Yongjun Liu ◽  
Pengyuan Liu ◽  
Robert R Recker ◽  
Hong-Wen Deng

2017 ◽  
Vol 26 (1) ◽  
pp. 1-24 ◽  
Author(s):  
Denis Bratko ◽  
Ana Butković ◽  
Tena Vukasović Hlupić

The aim of this study is to simplify the issue of the concept of heritability, to give an introduction to the behavioral genetic theory and methods, as well as to give an overview of the current knowledge about heritability of personality and the quantitative and molecular genetic approach to estimate heritability. Following that, results on heritability of personality are summarized. In addition, we reanalyzed all available behavioral genetic studies published before 2010, which were included in Vukasović and Bratko (2015) meta-analysis, to estimate the correlations between different family members: 1) monozygotic twins reared together; 2) monozygotic twins reared apart; 3) dizygotic twins reared together; 4) dizygotic twins reared apart; 5) mother and offspring; 6) father and offspring. Estimates of the family resemblance for personality were .54 from intraclass correlations for twin pairs reared together, .45 for intraclass correlations for monozygotic twin pairs reared apart, and .26 and .28 for familial aggregation. This finding is in line with the conclusion of the previous meta-analysis, which showed that the study design is a significant moderator of personality heritability, with twin studies showing higher estimates compared to family and adoption studies. Following that, findings from molecular genetic studies on personality and from gene-environment interaction studies are summarized. Finally, recommendations for future studies are given.


2021 ◽  
Vol 23 ◽  
Author(s):  
Omar F. Khabour ◽  
Ahmed A. Abu-Siniyeh ◽  
Karem H. Alzoubi ◽  
Nihaya A. Al-Sheyab

Background: Behavioral genetic studies are important for the understanding of the contribution of genetic variations to human behavior. However, such studies might be associated with some ethical concerns. Methods: In the current study, ethical challenges related to studies of genetic variations contributing to human behavior were examined among researchers. To achieve the study purpose, the Middle East and North Africa (MENA) region researchers were taken as an example, where the aftermentioned ethical challenges were discussed among a group of researchers, who were the participants of an online forum. Discussions and responses of the participants were monitored and were later qualitatively analyzed. Results: Discussions revealed that several ethical challenges, including subjects’ recruitment, the difficulty of obtaining informed consents, and issues of privacy and confidentiality of obtained data as information leakage, in this case, will lead to social stigma and isolation of the participants and their immediate family members. Jordanian social and cultural norms, faith, and the tribal nature of the population were raised as a major challenge that might face conducting behavioral genetic studies in the Arab populations of the MENA. The lack of regulation related to the conduction of genetic studies, misunderstanding, and misuse of genetic information are other challenges. A full explanation of genetic research and the current and future possible benefits/risks of such research could be potential solutions. Conclusion: In conclusion, the MENA populations are tackled with major challenges in relation to conducting research studies in genetics/antisocial behavior field/s. Establishment of guidelines related to genetic studies, capacity building, increasing public awareness about the importance of genetic testing, and enhancing responsible conduct of research will facilitate the conduct of such sensitive studies in the future in the region.


2000 ◽  
Vol 36 (5) ◽  
pp. 561-570 ◽  
Author(s):  
Kirby Deater-Deckard ◽  
Thomas G. O'Connor

1994 ◽  
Vol 15 ◽  
pp. 145-148 ◽  
Author(s):  
Rudolph E. Tanzi ◽  
Ashley I. Bush ◽  
Wilma Wasco

2020 ◽  
Vol 6 (2) ◽  
pp. 00364-2019 ◽  
Author(s):  
Gareth M. Hynes ◽  
Timothy S.C. Hinks

While there now exist effective treatments for type 2 high, eosinophilic asthma, there are no specific therapies for 40–50% of people with asthma with other phenotypes, which result from poorly understood underlying pathological mechanisms. One such pathology is neutrophilic inflammation, which has been associated with interleukin (IL)-17 family cytokines. Human genetic studies identified IL-17 polymorphisms associated with asthma; in murine models of allergic airways disease, IL-17A contributes to airway hyperresponsiveness, and in humans, elevated airway IL-17A levels are repeatedly observed in severe asthma. However, the directionality of this association is unknown, and the assumption that IL-17 cytokines drive disease pathology remains speculative. Here, we explore the evidence underlying the relationship between IL-17 and asthma, we review lessons learned from investigating IL-17 in other inflammatory diseases, and discuss the possibility that IL-17 may even be protective in asthma rather than pathogenic. We also critically examine the newly proposed paradigm of a reciprocal relationship between type 2 and type 17 airways inflammation. In summary, we suggest an association between IL-17 and asthma, but research is needed examining the diverse functions of these cytokines, their longitudinal stability, their response to clinical interventions, and for mechanistic studies determining whether they are protective or pathogenic.


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