Resting Frontal Eeg Asymmetry and Personality Traits: A Meta–Analysis

2019 ◽  
Vol 33 (2) ◽  
pp. 154-175 ◽  
Author(s):  
Niclas Kuper ◽  
Wiebke Käckenmester ◽  
Jan Wacker
Keyword(s):  
Personality Traits ◽  
Meta Analysis ◽  
Eeg Asymmetry ◽  
Frontal Asymmetry ◽  
Quantitative Review ◽  
Frontal Eeg Asymmetry ◽  
Personality Psychology ◽  
Withdrawal Motivation ◽  
Approach And Withdrawal ◽  
The Relationship

Frontal asymmetry has been widely used as a marker of emotion, motivation, and psychopathology. When assessed during the resting state, it is regarded as an index of trait approach and withdrawal motivation. However, the replicability of these associations with personality is currently unclear. The present meta–analysis seeks to provide a comprehensive quantitative review of the relationship between personality traits and resting electroencephalographic (EEG) frontal asymmetry. We distinguished five personality clusters: extraversion, neuroticism, impulsivity, anger, and defensiveness. Data from 79 independent samples with overall 5700 participants were included in the meta–analysis. The results revealed that less than 0.4% of the variance in extraversion and neuroticism could be explained by resting frontal asymmetry. Similarly, a small effect was observed for trait anger, and a small–sized to medium–sized effect was observed for defensiveness, although the number of studies was very low. No significant effect emerged for impulsivity. The effects were further reduced after adjustment for publication bias. Given some evidence for heterogeneity, sub–traits were analysed, and methodological moderators were investigated. Based on the results, we conclude that the validity of resting frontal asymmetry as a marker for personality is not supported. Finally, recommendations are given to increase the replicability of frontal asymmetry research. © 2019 European Association of Personality Psychology

scholarly journals Loneliness and the Big Five Personality Traits: A Meta–Analysis

2020 ◽  
Vol 34 (1) ◽  
pp. 8-28 ◽  
Author(s):  
Susanne Buecker ◽  
Marlies Maes ◽  
Jaap J. A. Denissen ◽  
Maike Luhmann
Keyword(s):  
Personality Traits ◽  
Big Five ◽  
Structural Equation ◽  
Variance Estimation ◽  
Meta Analysis ◽  
The Other ◽  
Personality Factors ◽  
Big Five Personality ◽  
Personality Psychology ◽  
Total N

This preregistered meta–analysis ( k = 113, total n = 93 668) addressed how the Big Five dimensions of personality (extraversion, agreeableness, conscientiousness, neuroticism, and openness) are related to loneliness. Robust variance estimation accounting for the dependency of effect sizes was used to compute meta–analytic bivariate correlations between loneliness and personality. Extraversion ( r = −.370), agreeableness ( r = −.243), conscientiousness ( r = −.202), and openness ( r = −.107) were negatively related to loneliness. Neuroticism ( r = .358) was positively related to loneliness. These associations differed meaningfully in strength depending on how loneliness was assessed. Additionally, meta–analytic structural equation modelling was used to investigate the unique association between each personality trait and loneliness while controlling for the other four personality traits. All personality traits except openness remained statistically significantly associated with loneliness when controlling for the other personality traits. Our results show the importance of stable personality factors in explaining individual differences in loneliness. © 2020 European Association of Personality Psychology

The impact of service innovation on firm performance: a meta-analysis

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Changli Feng ◽  
Ruize Ma ◽  
Lin Jiang
Keyword(s):  
Firm Performance ◽  
Positive Impact ◽  
Meta Analysis ◽  
Service Innovation ◽  
Future Research ◽  
Quantitative Review ◽  
Content Type ◽  
And Performance ◽  
The Impact ◽  
The Relationship

PurposeWith the rise of service economy, many companies are attempting to gain a competitive advantage through service innovation. However, the existing research has not drawn consistent conclusions about the relationship between service innovation and firm performance. Hence, the purpose of this paper is to provide a quantitative review on the service innovation-performance relationship based on research findings reported in the extant literature.Design/methodology/approachStudies from 46 peer-reviewed articles were sampled and analyzed. A meta-analytic approach was adopted to conduct a quantitative review on the relationship between service innovation and firm performance, and the effects of any potential moderators were further explored.FindingsThe results found that service innovation has a significant positive impact on firm performance. Additionally, the relationship between service innovation and firm performance is influenced by measurement moderators (economic region and performance measurement), and contextual moderators (firm type, innovation type, customer factors and attitudes toward risk).Originality/valueThe meta-analysis has been used to explore the relationship between service innovation and firm performance, and the findings have contributed to the literature on service innovation, as well as providing future research directions.

Personality Traits Increasingly Important for Male Fertility: Evidence from Norway

2014 ◽  
Vol 28 (6) ◽  
pp. 521-529 ◽  
Author(s):  
Vegard Skirbekk ◽  
Morten Blekesaune
Keyword(s):  
Personality Traits ◽  
Male Fertility ◽  
Or Education ◽  
Personality Psychology ◽  
Female Partners ◽  
Partner Characteristics ◽  
Partnership Status ◽  
The Relationship ◽  
Individual Partner

We study the relationship between personality traits and fertility using a survey of Norwegian men and women born from 1927 to 1968 (N = 7017 individuals). We found that personality relates to men's and women's fertility differently; conscientiousness decreases female fertility, openness decreases male fertility and extraversion raises the fertility of both sexes. Neuroticism depresses fertility for men, but only for those born after 1956. The lower male fertility in younger cohorts high in neuroticism cannot be explained by partnership status, income or education. The proportion of childless men (at age 40 years) has increased rapidly for Norwegian male cohorts from 1940 to 1970 (from about 15 to 25 per cent). For women, it has only increased marginally (from 10 to 13 per cent). Our findings suggest that this could be partly explained by the increasing importance of personality characteristics for men's probability of becoming fathers. Men that have certain personality traits may increasingly be avoiding the long–term commitment of having children, or their female partners are shunning entering this type of commitment with them. Childbearing in contemporary richer countries may be less likely to be influenced by economic necessities and more by individual partner characteristics, such as personality. Copyright © 2013 European Association of Personality Psychology

scholarly journals EEG Frontal Asymmetry in Dysthymia, Major Depressive Disorder and Euthymic Bipolar Disorder

Symmetry ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 2414
Author(s):  
Chiara Spironelli ◽  
Francesca Fusina ◽  
Marco Bortolomasi ◽  
Alessandro Angrilli
Keyword(s):  
Bipolar Disorder ◽  
Major Depressive Disorder ◽  
Depressive Disorder ◽  
Mood Disorders ◽  
Quantitative Eeg ◽  
Beta Activity ◽  
Major Depressive ◽  
Eeg Asymmetry ◽  
Frontal Asymmetry ◽  
Frontal Eeg Asymmetry

In the last few decades, the incidence of mood disorders skyrocketed worldwide and has brought an increasing human and economic burden. Depending on the main symptoms and their evolution across time, they can be classified in several clinical subgroups. A few psychobiological indices have been extensively investigated as promising markers of mood disorders. Among these, frontal asymmetry measured at rest with quantitative EEG has represented the main available marker in recent years. Only a few studies so far attempted to distinguish the features and differences among diagnostic types of mood disorders by using this index. The present study measured frontal EEG asymmetry during a 5-min resting state in three samples of patients with bipolar disorder in a Euthymic phase (EBD, n = 17), major depressive disorder (MDD, n = 25) and persistent depressive disorder (PDD, n = 21), once termed dysthymia. We aimed to test the hypothesis that MDD and PDD lack the typical leftward asymmetry exhibited by normal as well as EBD patients, and that PDD shows greater clinical and neurophysiological impairments than MDD. Clinical scales revealed no symptoms in EBD, and significant larger anxiety and depression scores in PDD than in MDD patients. Relative beta (i.e., beta/alpha ratio) EEG asymmetry was measured from lateral frontal sites and results revealed the typical greater left than right frontal beta activity in EBD, as well as a lack of asymmetry in both MDD and PDD. The last two groups also had lower bilateral frontal beta activity in comparison with the EBD group. Results concerning group differences were interpreted by taking into account both the clinical and the neurophysiological domains.

scholarly journals Testing the Asymmetric Inhibition Model: Frontal EEG Asymmetry Does Not Predict Inhibitory Control of Emotional Distractors

2021 ◽  
Author(s):  
◽  
Rosanna Moody
Keyword(s):  
Individual Differences ◽  
Inhibitory Control ◽  
Emotional Processing ◽  
Control Mechanisms ◽  
Eeg Asymmetry ◽  
Frontal Asymmetry ◽  
Frontal Eeg Asymmetry ◽  
Inhibition Model ◽  
Emotional Challenge ◽  
Dorsolateral Prefrontal

<p>Frontal electroencephalographic (EEG) asymmetry is a reliable marker of psychopathology vulnerability, yet the mechanisms underlying this relationship remain unclear. There is accumulating evidence that frontal asymmetry reflects individual differences in ability to use cognitive control to regulate emotional processing. This thesis provides the first test of the asymmetric inhibition model (Grimshaw & Carmel, 2014), which holds that frontal asymmetry reflects ability to engage valence-specific inhibitory control mechanisms supported by dorsolateral prefrontal cortex (dlPFC): left dlPFC inhibits negative distractors and right dlPFC inhibits positive distractors. Frontal asymmetry was tested as a predictor of ability to inhibit distracting emotional images. Frontal asymmetry was measured at rest and during emotional challenge, which is argued to provide a more powerful measure of individual differences (capability model; Coan, Allen, & McKnight, 2006). Emotional challenge was induced using a stressful serial subtraction task, verified to be effective in Study 1, followed by a silent speech preparation task, during which EEG was recorded. An irrelevant distractor paradigm measured ability to inhibit emotional distraction; participants identified a target letter within a central symbol array while attempting to inhibit positive, negative and neutral peripheral images (Study 2). Overall, positive and negative images were more distracting than neutral images. Critically, neither resting nor emotional challenge frontal asymmetry predicted distraction by positive, negative or neutral images, suggesting that frontal asymmetry does not reflect ability to inhibit irrelevant emotional distractors. Thus, the asymmetric inhibition model was not supported. This thesis provides the first direct test of the relationship between frontal EEG asymmetry and inhibitory control of emotion, paving the way for future explorations into this relationship. These findings add to a growing literature attempting to elucidate the cognitive mechanisms underlying frontal asymmetry in order to better understand the etiology of psychopathology.</p>

The Five-Factor Model of Personality and Generalized Self Efficacy

2021 ◽  
pp. 1-11
Author(s):  
Urszula Barańczuk
Keyword(s):  
Personality Traits ◽  
Big Five ◽  
Self Efficacy ◽  
Factor Model ◽  
Current Knowledge ◽  
Five Factor Model ◽  
Meta Analysis ◽  
Big Five Personality Traits ◽  
Big Five Personality ◽  
The Relationship

Abstract. The aim of the study was to evaluate the relation between the Big Five personality traits and generalized self-efficacy. Data for the meta-analysis were collected from 53 studies, which included 60 independent samples, 188 effect sizes, and 28,704 participants. Lower neuroticism and higher extraversion, openness to experience, agreeableness, and conscientiousness were associated with greater generalized self-efficacy. Personality traits and generalized self-efficacy measurements, as well as age, moderated the relationship between the Big Five personality traits and generalized self-efficacy. The study extends current knowledge on the associations between personality traits and generalized self-efficacy.

scholarly journals The relationship between personality traits and marital satisfaction: a systematic review and meta-analysis

2020 ◽  
Vol 8 (1) ◽  
Author(s):  
Kourosh Sayehmiri ◽  
Karez Ibrahim Kareem ◽  
Kamel Abdi ◽  
Sahar Dalvand ◽  
Reza Ghanei Gheshlagh
Keyword(s):  
Systematic Review ◽  
Marital Satisfaction ◽  
Personality Traits ◽  
Meta Analysis ◽  
The Relationship

scholarly journals Personality, Communication, and Depressive Symptoms across the Transition to Parenthood: A Dyadic Longitudinal Investigation

2015 ◽  
Vol 29 (2) ◽  
pp. 216-234 ◽  
Author(s):  
Emma M. Marshall ◽  
Jeffry A. Simpson ◽  
W. Steven Rholes
Keyword(s):  
Depressive Symptoms ◽  
Personality Traits ◽  
Transition To Parenthood ◽  
Well Being ◽  
Life Transitions ◽  
Major Life ◽  
Personality Psychology ◽  
First Child ◽  
The Relationship ◽  
Major Life Transitions

This study adopted a person (actor) by partner perspective to examine how actor personality traits, partner personality traits, and specific actor by partner personality trait interactions predict actor's depressive symptoms across the first 2 years of the transition to parenthood. Data were collected from a large sample of new parents (both partners in each couple) 6 weeks before the birth of their first child, and then at 6, 12, 18, and 24 months postpartum. The results revealed that higher actor neuroticism and lower partner agreeableness predicted higher levels of depressive symptoms in actors. Moreover, the specific combination of high actor neuroticism and low partner agreeableness was a particularly problematic combination, which was intensified when prepartum dysfunctional problem–solving communication and aggression existed in the relationship. These results demonstrate the importance of considering certain actor by partner disposition pairings to better understand actors’ emotional well–being during major life transitions. Copyright © 2015 European Association of Personality Psychology

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