Gary J Lewis
Biographic Data
| ID | 3657662 |
|---|---|
| NAME | Gary J Lewis |
| GIVEN NAMES | Gary J |
| FAMILY NAME | Lewis |
| SIGNATURE | LEWIS G J |
| AFFILIATIONS | Royal Holloway University of London |
| VERIFIED | No |
| TOTAL WORKS | 21 |
| TOTAL CITATIONS | 23 |
| WORKS AS AUTHOR | 21 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 1984 |
| LATEST PUBLICATION YEAR | 2023 |
| H-INDEX | 2 |
Heterogeneous attitudinal profiles towards gene editing
Advances in gene-editing technology have important implications for the treatment and prevention of disease. Accordingly, it is important to understand public perceptions towards gene editing, as the public’s willingness to endorse gene editing may be as important as technological breakthroughs themselves. Previous research has almost exclusively examined attitudes towards gene editing on specific issues, but has not addressed how attitudes towar…
Face perception across the adult lifespan
It is well-documented that face perception – including facial expression and identity recognition ability – declines with age. To date, however, it is not yet well understood whether this age-related decline reflects face-specific effects, or instead can be accounted for by well-known declines in general intelligence. We examined this issue using a relatively large, healthy, age-diverse (18-88 years) sample (N = 595) who were assessed on well-est…
How genetic and environmental variance in personality traits shift across the life span
Decades of research have shown that about half of individual differences in personality traits is heritable. Recent studies have reported that heritability is not fixed, but instead decreases across the life span. However, findings are inconsistent and it is yet unclear whether these trends are because of a waning importance of heritable tendencies, attributable to cumulative experiential influences with age, or because of nonlinear patterns sugg…
Consistent evidence of a link between Alexithymia and general intelligence
Alexithymia is a personality construct characterised most notably by a difficulty in identifying and expressing feelings. Although the emotional difficulties in alexithymia are well established, to date little work has examined its relationship to broader cognitive abilities, such as general intelligence. Across three independent, healthy adult samples (Ns = 389, 318, & 273), we examined whether alexithymia was associated with general intelligenc…
Emotion recognition ability
Understanding opposition to human gene editing
A bstract Recent advances in gene editing technology promise much for medical advances and human well-being. However, in parallel domains, there have been objections to the use of such biotechnologies. Moreover, the psychological factors that govern the willingness to use gene editing technology have been underexplored to date. In this registered report, we sought to test whether pathogen disgust sensitivity is linked with opposition to gene edit…
How many ways to say goodbye? The latent class structure and psychological correlates of European Union sentiment in a large sample of UK adults
Most psychological research on Brexit categorises participants as either leave or remain supporters. In the current study we take a data-driven approach and identify different clusterings of attitudes towards the European Union (EU) using latent class analysis (LCA), as well as how these classes differ across a range of important social and psychological variables. This analysis revealed 10 distinct classes of voters in a large (N = 15860) adult …
Sex differences in emotion recognition
Although it is widely believed that females outperform males in the ability to recognize other people's emotions, this conclusion is not well supported by the extant literature. The current study sought to provide a strong test of the female superiority hypothesis by investigating sex differences in emotion recognition for five basic emotions using stimuli well-calibrated for individual differences assessment, across two expressive domains (face …
The Temporal Stability of In-Group Favoritism Is Mostly Attributable to Genetic Factors
Twin studies of in-group favoritism have reported roughly equal influences of genetic and environmental factors. All, however, have solely relied on cross-sectional approaches, leaving open the question of whether genetic and environmental factors have similar roles on stability and change for in-group favoritism across time. While in-group favoritism is commonly perceived to reflect environmental influences, stable environmental effects are rare…
Unearthing the “Green” Personality
Pro-environmental attitudes and behaviors show substantial individual differences, and exploring their predictors can help reveal the origins of pro-environmental behavior. Basic personality traits may provide a partial explanation, but it is unclear which personality traits are reliably associated with pro-environmental behaviors. This article uses a specific type of environmental behavior, reducing greenhouse gas emissions, to clarify which per…
Identity uncertainty and UK–Scottish relations
Drawing on uncertainty-identity theory, we investigated how people respond differently to identity uncertainty at a superordinate (i.e., UK) or subgroup (i.e., Scottish) level depending on the subjective self-conceptual centrality of subgroup relative to superordinate group; altering superordinate and subgroup identification and attitude toward subgroup relations to the superordinate group in the context of Scotland’s bid for independence from th…
Distinct Heritable Influences Underpin In-Group Love and Out-Group Derogation
In-group favoritism has often been conceptualized as the flip side of out-group derogation. Whereas research has dissociated these attitudes at the phenotypic level, it is currently unknown whether such dissociation is also evident at the biological level. Here, using an adult German twin sample, which provided ratings on patriotism, nationalism, and prejudice, we tested whether common or distinct heritable influences best explained variation in …
Core Dimensions of Personality Broadly Account for the Link from Perceived Social Support to Symptoms of Depression and Anxiety
Specific personality traits and poor social support are risk factors for anxiety and depression. Little work, however, has considered the effects of social support and personality on these aspects of psychopathology simultaneously. We examined whether perceived social support mediates the effects of core personality domains on symptoms of anxiety and depression. Measures of personality (based on the Five‐Factor Model [ FFM ]), perceived social su…
Common Heritable Effects Underpin Concerns Over Norm Maintenance and In‐Group Favoritism
Research has shown that in‐group favoritism is associated with concerns over the maintenance of social norms. Here we present two studies examining whether genetic factors underpin this association. A classical twin design was used to decompose phenotypic variance into genetic and environmental components in two studies. Study 1 used 812 pairs of adult U.S . twins from the nationally representative MIDUS II sample. Study 2 used 707 pairs of middl…
How genes influence personality
Telling facial metrics
Genetic Influences on P sychological W ell‐ B eing
OBJECTIVE: Psychological well-being, or eudaimonia, features strongly in theories of human development and thriving. However, the factors of eudaimonia are debated, and their genetic architecture has not been studied in detail. METHOD: A classical twin design was used to decompose behavioral variance into genetic and environmental components implemented in a multigroup, multivariate structural equation modeling framework. Subjects were 837 pairs …
Common genetic influences underpin religiosity, community integration, and existential uncertainty
No evidence for sexual dimorphism of facial width-to-height ratio in four large adult samples
From left to right
Research on the association of personality to political orientation has suggested that direct influences are modest. Here we used a personality system model in which direct influences on political behaviour flow from moral values, with personality mostly acting on these characteristic moral adaptations, rather than directly affecting political attitudes. Study 1 in 447 subjects supported this model, with significant effects on political orientati…
Million Farms' Campaign, NSW 1919-25
This paper examines the conduct by Sir Joseph Hector Carruthers (1851-1932) of his 'Million Farms' campaign in New South Wales between 1919 and 1925 and traces the development of the Monaro Community Settle ment Society of which he was chairman. In doing so, it highlights the discrepancies between Carruthers' private and political motives and his declared public purpose. The methods he used to achieve his ends are a case study in conservative and…
From left to right
Research on the association of personality to political orientation has suggested that direct influences are modest. Here we used a personality system model in which direct influences on political behaviour flow from moral values, with personality mostly acting on these characteristic moral adaptations, rather than directly affecting political attitudes. Study 1 in 447 subjects supported this model, with significant effects on political orientati…
Identity uncertainty and UK–Scottish relations
Drawing on uncertainty-identity theory, we investigated how people respond differently to identity uncertainty at a superordinate (i.e., UK) or subgroup (i.e., Scottish) level depending on the subjective self-conceptual centrality of subgroup relative to superordinate group; altering superordinate and subgroup identification and attitude toward subgroup relations to the superordinate group in the context of Scotland’s bid for independence from th…
How genes influence personality
Common genetic influences underpin religiosity, community integration, and existential uncertainty
How genetic and environmental variance in personality traits shift across the life span
Decades of research have shown that about half of individual differences in personality traits is heritable. Recent studies have reported that heritability is not fixed, but instead decreases across the life span. However, findings are inconsistent and it is yet unclear whether these trends are because of a waning importance of heritable tendencies, attributable to cumulative experiential influences with age, or because of nonlinear patterns sugg…
Understanding opposition to human gene editing
A bstract Recent advances in gene editing technology promise much for medical advances and human well-being. However, in parallel domains, there have been objections to the use of such biotechnologies. Moreover, the psychological factors that govern the willingness to use gene editing technology have been underexplored to date. In this registered report, we sought to test whether pathogen disgust sensitivity is linked with opposition to gene edit…
Million Farms' Campaign, NSW 1919-25
This paper examines the conduct by Sir Joseph Hector Carruthers (1851-1932) of his 'Million Farms' campaign in New South Wales between 1919 and 1925 and traces the development of the Monaro Community Settle ment Society of which he was chairman. In doing so, it highlights the discrepancies between Carruthers' private and political motives and his declared public purpose. The methods he used to achieve his ends are a case study in conservative and…
From left to right
Research on the association of personality to political orientation has suggested that direct influences are modest. Here we used a personality system model in which direct influences on political behaviour flow from moral values, with personality mostly acting on these characteristic moral adaptations, rather than directly affecting political attitudes. Study 1 in 447 subjects supported this model, with significant effects on political orientati…
No evidence for sexual dimorphism of facial width-to-height ratio in four large adult samples
Telling facial metrics
Genetic Influences on P sychological W ell‐ B eing
OBJECTIVE: Psychological well-being, or eudaimonia, features strongly in theories of human development and thriving. However, the factors of eudaimonia are debated, and their genetic architecture has not been studied in detail. METHOD: A classical twin design was used to decompose behavioral variance into genetic and environmental components implemented in a multigroup, multivariate structural equation modeling framework. Subjects were 837 pairs …
Common genetic influences underpin religiosity, community integration, and existential uncertainty
Distinct Heritable Influences Underpin In-Group Love and Out-Group Derogation
In-group favoritism has often been conceptualized as the flip side of out-group derogation. Whereas research has dissociated these attitudes at the phenotypic level, it is currently unknown whether such dissociation is also evident at the biological level. Here, using an adult German twin sample, which provided ratings on patriotism, nationalism, and prejudice, we tested whether common or distinct heritable influences best explained variation in …
Core Dimensions of Personality Broadly Account for the Link from Perceived Social Support to Symptoms of Depression and Anxiety
Specific personality traits and poor social support are risk factors for anxiety and depression. Little work, however, has considered the effects of social support and personality on these aspects of psychopathology simultaneously. We examined whether perceived social support mediates the effects of core personality domains on symptoms of anxiety and depression. Measures of personality (based on the Five‐Factor Model [ FFM ]), perceived social su…
Common Heritable Effects Underpin Concerns Over Norm Maintenance and In‐Group Favoritism
Research has shown that in‐group favoritism is associated with concerns over the maintenance of social norms. Here we present two studies examining whether genetic factors underpin this association. A classical twin design was used to decompose phenotypic variance into genetic and environmental components in two studies. Study 1 used 812 pairs of adult U.S . twins from the nationally representative MIDUS II sample. Study 2 used 707 pairs of middl…
How genes influence personality
Unearthing the “Green” Personality
Pro-environmental attitudes and behaviors show substantial individual differences, and exploring their predictors can help reveal the origins of pro-environmental behavior. Basic personality traits may provide a partial explanation, but it is unclear which personality traits are reliably associated with pro-environmental behaviors. This article uses a specific type of environmental behavior, reducing greenhouse gas emissions, to clarify which per…
Identity uncertainty and UK–Scottish relations
Drawing on uncertainty-identity theory, we investigated how people respond differently to identity uncertainty at a superordinate (i.e., UK) or subgroup (i.e., Scottish) level depending on the subjective self-conceptual centrality of subgroup relative to superordinate group; altering superordinate and subgroup identification and attitude toward subgroup relations to the superordinate group in the context of Scotland’s bid for independence from th…
The Temporal Stability of In-Group Favoritism Is Mostly Attributable to Genetic Factors
Twin studies of in-group favoritism have reported roughly equal influences of genetic and environmental factors. All, however, have solely relied on cross-sectional approaches, leaving open the question of whether genetic and environmental factors have similar roles on stability and change for in-group favoritism across time. While in-group favoritism is commonly perceived to reflect environmental influences, stable environmental effects are rare…
Sex differences in emotion recognition
Although it is widely believed that females outperform males in the ability to recognize other people's emotions, this conclusion is not well supported by the extant literature. The current study sought to provide a strong test of the female superiority hypothesis by investigating sex differences in emotion recognition for five basic emotions using stimuli well-calibrated for individual differences assessment, across two expressive domains (face …
How many ways to say goodbye? The latent class structure and psychological correlates of European Union sentiment in a large sample of UK adults
Most psychological research on Brexit categorises participants as either leave or remain supporters. In the current study we take a data-driven approach and identify different clusterings of attitudes towards the European Union (EU) using latent class analysis (LCA), as well as how these classes differ across a range of important social and psychological variables. This analysis revealed 10 distinct classes of voters in a large (N = 15860) adult …
Consistent evidence of a link between Alexithymia and general intelligence
Alexithymia is a personality construct characterised most notably by a difficulty in identifying and expressing feelings. Although the emotional difficulties in alexithymia are well established, to date little work has examined its relationship to broader cognitive abilities, such as general intelligence. Across three independent, healthy adult samples (Ns = 389, 318, & 273), we examined whether alexithymia was associated with general intelligenc…
Emotion recognition ability
Understanding opposition to human gene editing
A bstract Recent advances in gene editing technology promise much for medical advances and human well-being. However, in parallel domains, there have been objections to the use of such biotechnologies. Moreover, the psychological factors that govern the willingness to use gene editing technology have been underexplored to date. In this registered report, we sought to test whether pathogen disgust sensitivity is linked with opposition to gene edit…
Face perception across the adult lifespan
It is well-documented that face perception – including facial expression and identity recognition ability – declines with age. To date, however, it is not yet well understood whether this age-related decline reflects face-specific effects, or instead can be accounted for by well-known declines in general intelligence. We examined this issue using a relatively large, healthy, age-diverse (18-88 years) sample (N = 595) who were assessed on well-est…
How genetic and environmental variance in personality traits shift across the life span
Decades of research have shown that about half of individual differences in personality traits is heritable. Recent studies have reported that heritability is not fixed, but instead decreases across the life span. However, findings are inconsistent and it is yet unclear whether these trends are because of a waning importance of heritable tendencies, attributable to cumulative experiential influences with age, or because of nonlinear patterns sugg…
Heterogeneous attitudinal profiles towards gene editing
Advances in gene-editing technology have important implications for the treatment and prevention of disease. Accordingly, it is important to understand public perceptions towards gene editing, as the public’s willingness to endorse gene editing may be as important as technological breakthroughs themselves. Previous research has almost exclusively examined attitudes towards gene editing on specific issues, but has not addressed how attitudes towar…
Psychology (20 works) · Social Psychology (16 works) · Developmental psychology (12 works) · Evolutionary Psychology and Human Behavior (8 works) · Social and Intergroup Psychology (8 works) · Personality (7 works) · Political science (7 works) · Big Five personality traits (6 works) · Cognitive psychology (5 works) · Cultural Differences and Values (5 works)