scholarly journals Predisposition to Impulsivity and Risk-taking: Dopamine D4 Receptor (DRD4) Polymorphic Gene Linked to “Novelty Seeking” Personality Trait

Author(s):  
Robyn Winterbottom

Genetic variation may play a significant role in the expression of complex personality and psychological traits. This article examines the relationship between heritable biological mechanisms and the psychological trait, impulsivity. In particular, dopamine is proposed to play a role in impulsive behaviours, and numerous studies have implicated functional polymorphisms of dopamine-related genes in impulsivity. This article reviews several studies concerning the role of dopamine receptor (DRD4) polymorphisms in the expression of an impulsivity sub-trait known as “novelty seeking”. Furthermore, this article focuses on recent approaches to the study of genetic variation, approaches to the measurement of novelty seeking, as well as other possible regulators of the trait in addition to genetics. 

2015 ◽  
Vol 15 (3-4) ◽  
pp. 235-253 ◽  
Author(s):  
Taylor Davis

In the scientific literature on religious evolution, two competing theories appeal to group selection to explain the relationship between religious belief and altruism, or costly, prosocial behavior. Both theories agree that group selection plays an important role in cultural evolution, affecting psychological traits that individuals acquire through social learning. They disagree, however, about whether group selection has also played a role in genetic evolution, affecting traits that are inherited genetically. Recently, Jonathan Haidt has defended the most fully developed account based on genetic group selection, and I argue here that problems with this account reveal good reasons to doubt that genetic group selection has played any important role in human evolution at all. Thus, considering the role of group selection in religious evolution is important not just because of what it reveals about religious psychology and religious evolution, but also because of what it reveals about the role of group selection in human evolution more generally.


2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Romualdas Malinauskas ◽  
Audrone Dumciene ◽  
Saule Sipaviciene ◽  
Vilija Malinauskiene

This study investigated the role of gender as a potential predictor of health behaviour and potential moderator of the relationship between emotional intelligence and health behaviour. This cross-sectional study included 1214 students (597 males and 617 females). Data were collected using the Schutte Self-Report Inventory and the Health Behaviour Checklist. Stepwise multiple regression analysis was executed with the components of health behaviour as the dependent variables to examine the predictive value of the emotional intelligence indicators as the independent variables. Gender predicted all categories of health behaviours. Only one indicator of emotional intelligence, appraisal, predicted the Accident Control and Traffic Risk Taking categories. The emotional intelligence indicator of social skills emerged only as a predictor of Wellness Maintenance and Enhancement in university students. Gender moderates the relationship between all emotional intelligence indicators and health behaviour components except the relationship between Appraisal and Substance Risk Taking and the relationship between Utilization and traffic risk taking.


2019 ◽  
Vol 24 (02) ◽  
pp. 1950008
Author(s):  
CHONNATCHA KUNGWANSUPAPHAN ◽  
JIBON KUMAR SHARMA LEIHAOTHABAM

This study examines the relationship between entrepreneurial orientation of female entrepreneurs and business performance, and analyzes the moderating role of institutional capital on the entrepreneurial orientation-performance link. The results of the study highlight the important role of entrepreneurial orientation, including proactiveness, innovativeness and risk-taking, in directing business performance of female entrepreneurs and the complex interplay among entrepreneurial orientation variables. It also indicates that accessibility to institutional capital, through regulative, cognitive and normative dimensions, encourages female entrepreneurs to be more entrepreneurially oriented, thus leading to better business performance. In addition, this research proposes an integrated framework to guide policy makers on how institutional capital can play a crucial role in helping female entrepreneurs, stressing the importance of becoming entrepreneurial oriented and thus, achieving superior business performance.


Author(s):  
Pruthikrai Mahatanankoon

This exploratory study aims to examine the moderating effect of novelty seeking and spontaneity on the relationship between asynchronous and synchronous personal electronic communication at work. Hierarchical moderated regression analyses were used to analyze a survey of 110 white-collar employees working in the midwestern region of the United States. Data analysis revealed the moderating effects of spontaneity and novelty seeking on the transition from personal asynchronous to synchronous communication, emphasizing the role of novelty seeking and spontaneity as the precursors to higher media synchronicity—a transition from conveyance to convergence processes as observed in various hedonic settings. Strategies for workplace communication management are discussed.


2021 ◽  
Vol 11 (3) ◽  
pp. 367-371
Author(s):  
Nadezhda I. Pavlova ◽  
Aleksandra T. Diakonova ◽  
Vladislav A. Alekseev ◽  
Yigulana P. Borisova ◽  
Vladimir V. Dodokhov ◽  
...  

Background: The ABCB1 gene is responsible for resistance to various cytotoxic drugs. The product of the ABCB1 gene, P-glycoprotein (P-gp), acts as a transmembrane pump and influences the action of many drugs. More than 40 SNPs of the ABCB1 gene that alter the expression of P-gp have been identified. The ABCB1 rs1045642 SNP, designated as C3435T (C-the wild-type allele, T-the variant allele), correlates with the activity of P-gp. The aim of our research was to study the distribution of alleles and genotypes of the ABCB1 C3435T polymorphism in Yakuts, in comparison with other human populations. Methods and Results: The studied cohort included 149 healthy Yakut volunteers (36 men and 113 women). The average age of participants was 30.67±0.06 years. The ABCB1 gene is a highly polymorphic gene; the allele frequency of the C3435T polymorphism differs widely among the studied populations. The frequency of the mutant T-allele among the Yakuts was 51% .In the studied group of Yakuts, we revealed the prevalence of the heterozygous CT genotype (75.8%). The Yakuts have a relatively low frequency of CC (10.7%) and TT (13.4%) genotypes. This preliminary study did not include the objective of proving the relationship between the ABCB1 C3435T polymorphism and addictive disorders in Yakuts. The further search for functional polymorphisms of the ABCB1 gene and associations with addictive behavior using a systematic approach on larger samples is of great practical importance.


2021 ◽  
Vol 7 (2) ◽  
pp. 505-524
Author(s):  
Esra Asıcı

The investigation and supporting variables related to the mental health of teaching candidates is important since teachers’ psychological traits will affect students’ personal, social, and academic development. In this paper, the intermediary role of hope in the relationship between the social entrepreneurship characteristics and psychological well-being of teaching candidates was investigated. The sample consisted of 855 teaching candidates were chosen randomly. The data were collected by using the Psychological Well-being Scale, the Social Entrepreneurship Characteristics of the Pre-service Teachers’ Scale, the Dispositional Hope Scale and a Demographic Information Form. In the analysis descriptive statistics, Pearson’s correlation, and regression-based bootstrapping method were used. The results showed that teaching candidates’ social entrepreneurship characteristics were positively and significantly correlated with psychological well-being and two components of hope (alternative ways of thinking and actuating thinking). Besides, it was found that alternative ways of thinking and actuating thinking had partial mediating roles in the relationship between teaching candidates’ social entrepreneurship characteristics and psychological well-being. The obtained findings were discussed in the light of related literature and suggestions were offered.


2019 ◽  
Vol 15 (2) ◽  
pp. 25-42
Author(s):  
Fozia Taj ◽  

This study aims to investigate the relationship between the managerial risk-taking, managerial competencies and financial service outreach of microfinance banks in Pakistan. Primary data was collected from 36 branches of microfinance banks (MFBs) in nine cities. The unit of investigation is the branch manager and senior credit officer of each MFB branch. Descriptive statistics, correlation and regression, are used for data analysis. This study found a positive relationship between financial service outreach of MFBs and managerial competencies; financial service outreach also has a positive relationship with the risk-taking behavior of managers. There is a positive relationship between risk-taking behavior and financial service outreach of banks. The risk-taking behavior partially mediates the relationship between the managerial competencies and financial service outreach. The magnitude of the relationship between managerial competencies and outreach is significant, and its magnitude reduces when there is the mediation of managerial risk-taking behavior between them. Thus, managerial competencies, along with risk-taking behavior are the keys drivers of financial service outreach of MFBs. This study informs MFB’s top management and policymakers that competencies of managers and their calculated risk-taking propensities determined outreach performance of the MFBs.


2021 ◽  
Author(s):  
Lewend Mayiwar ◽  
Fredrik Björklund

A growing line of research has shown that individuals can regulate emotional biases in risky judgment and decision-making processes through cognitive reappraisal. In the present study, we focus on a specific tactic of reappraisal known as distancing. Drawing on appraisal theories of emotion and the emotion regulation literature, we examine how distancing moderates the relationship between fear and risk taking and anger and risk taking. In three pre-registered studies (Ntotal = 1,483), participants completed various risky judgment and decision-making tasks. Replicating previous results, Study 1 revealed a negative relationship between fear and risk taking and a positive relationship between anger and risk taking at low levels of distancing. Study 2 replicated the interaction between fear and distancing but found no interaction between anger and distancing. Interestingly, at high levels of distancing, we observed a reversal of the relationship between fear and risk taking in both Study 1 and 2. Study 3 manipulated emotion and distancing by asking participants to reflect on current fear-related and anger-related stressors from an immersed or distanced perspective. Study 3 found no main effect of emotion nor any evidence of a moderating role of distancing. However, exploratory analysis revealed a main effect of distancing on optimistic risk estimation, which was mediated by a reduction in self-reported fear. Overall, the findings suggest that distancing can help regulate the influence of incidental fear on risk taking and risk estimation. We discuss implications and suggestions for future research.


2021 ◽  
pp. 1-25
Author(s):  
Junping Yang ◽  
Min Zhu ◽  
Mengjie Zhang ◽  
Kai Yao

Abstract Technology that develops rapidly has profoundly affected the business field and reshaped some behaviours of corporations, and the discussion on startup risk-taking behaviour in the new era is still insufficient. Based on social network theory and social capital theory, this article studies how social networks and entrepreneurial ecosystems support startup risk-taking behaviour. This article cuts into this issue through the perspective of coopetition. Based on 737 responses, this article employs regression and fuzzy-set qualitative comparative analysis to explore the relationships between networks, ecosystem coopetition, and risk-taking behaviour. Results indicate that networks and coopetition may stimulate startup risk-taking behaviour, and coopetition may weaken the impacts of networks. There are replacement effects between different characteristics of networks, and there are several configurations, which may lead to high-level risk-taking. This article may help us understand startup risk-taking behaviour in the digital era and the positive impacts of ecosystems.


Sign in / Sign up

Export Citation Format

Share Document