Happiness in Behaviour Genetics: Findings and Implications

A number of behaviour genetic studies have shown variation in happiness to be influenced by genes, and indicated that long-term happiness is predominantly caused by genes. To policy makers and individuals, as well as the psychological and psychiatric enterprise, evidence for considerable and stable genetic contributions suggests that societal changes, therapeutic interventions, and public prevention may produce mainly transitory or minor effects. This is not true. The present paper aims to summarise the recent behaviour genetic findings on happiness and happiness-related constructs and to discuss their theoretical and practical implications. Specifically, five major implications relevant to public health work, are outlined and broadly discussed: (1) high heritability does not limit chances for raising happiness, (2) genes generate stability, (3) environments generate change, (4) environmental influences operate on an individual-by-individual basis, and (5) control for genetic endowments is necessary for correct measures of environmental effects.     

Psychopathy in a forensic sample – the factor structure of the PCL:SV in a Danish forensic sample

The research literature reveals an ongoing debate regarding the most appropriate conceptualization of psychopathic personality disorder. Specifically, it is discussed to what degree antisocial behavior is part of the conceptualization of the psychopathy construct and what constitutes the best factor model of the Psychopathy Checklist scales. The aim of the present study is to consider the underlying factor structure of the PCL:SV (Psychopathy Checklist Screening Version) in a Danish sample as well as considering the role of antisocial behavior in the psychopathy construct. Data from a Danish forensic patient sample (N = 225) was used and item response theory (IRT), aonfirmatory factor analyses (CFA) and structural equations model (SEM) analyses were carried out. Overall, the findings suggest appropriate item and model fit for the PCL:SV as well as superiority of the three‐factor model over the four‐factor model. The results are discussed in relation to the broader concept of personality disorder as well as clinical practice in regards to violence risk assessments and treatment of psychopathy.     

An Intuitionist Theory of Argument Strength in Politics: How Intuitive Cognitive Biases Produce Universally Strong Arguments

Why are some political arguments more persuasive than others? Extant theories have mainly explained argument strength with reference to familiarity. Such explanations suggest that arguments are only strong for particular populations: those living in particular cultures, those following particular news, or those holding particular political values. Here, we argue for and identify the existence of a universally strong class of arguments transcending such divides: arguments that are congruent with intuitively held cognitive biases. We focus on arguments about social welfare that are congruent with a particular cognitive bias: the deservingness heuristic. Embedding a novel experiment in representative surveys in the United States, Japan, and Denmark, we demonstrate that people intuitively process arguments that resonate with this heuristic and that such arguments are strong across cultural divides, across individual levels of familiarity with the arguments, and across individual differences in political values. Finally, against the idea that intuitive arguments are simplistic, we demonstrate that such arguments can be inferentially complex, as long as they resonate with a cognitive bias.     

Treating the Capability for Suicide: A Vital and Understudied Frontier in Suicide Prevention

Current efforts at suicide prevention center largely on reducing suicidal desire among individuals hospitalized for suicidality or being treated for related psychopathology. Such efforts have yielded evidence‐based treatments, and yet the national suicide rate has continued to climb. We propose that this disconnect is heavily influenced by an unmet need to consider population‐level interventions aimed at reducing the capability for suicide. Drawing on lessons learned from other public health phenomena that have seen drastic declines in frequency in recent decades (HIV, lung cancer, motor vehicle accidents), we propose that current suicidality treatment efforts trail current suicidality theories in their lack of focus on the extent to which individuals thinking about suicide are capable of transitioning from ideation to attempt. We summarize extant evidence for specific capability‐centered approaches (e.g., means safety) and propose other options for improving our ability to address this largely overlooked variable. We also note that population‐level approaches in this regard would represent an important opportunity to decrease risk in individuals who either lack access to evidence‐based care or underreport suicidal ideation, as a reduced capability for suicide would theoretically diminish the potency of suicidal desire and, in this sense, lower the odds of a transition from ideation to attempt.     

The Behavioral Immune System Shapes Partisan Preferences in Modern Democracies: Disgust Sensitivity Predicts Voting for Socially Conservative Parties

While there is growing interest in the relationship between pathogen-avoidance motivations and partisanship, the extant findings remain contradictory and suffer from a number of methodological limitations related to measurement and internal and external validity. We address these limitations and marshal the most complete test to date of the relationship between the behavioral immune system and partisanship, as indexed by which party people identify with and vote for. Using a unique research design, including multiple well-powered, nationally representative samples from the United States and Denmark collected in election and nonelection contexts, our study is the first to establish in cross-national data a consistent, substantial, and replicable connection between deep-seated pathogen-avoidance motivations and socially conservative party preferences across multiple validated measures of individual differences in disgust sensitivity and using large representative samples. We explore the relative contribution of the pathogen-avoidance model and sexual strategies for accounting for this relationship.     

Resource allocation for visual metaphor processing: A study of political cartoons

ABSTRACT

This paper is a study of visual metaphor processing in political cartoons, while secondary task reaction time was used to assess resource allocation when processing three types of visual metaphors, namely juxtapositions, fusions and replacements. Participants viewed a series of visual metaphors. At various intervals, they were invited to push a button whenever a probe appeared. Reaction times to detect the probes were recorded. Subsequently, participants performed recall and recognition tasks. Results showed that participants reacted faster to each successive probe, while metaphor type had no influence on reaction times. Concerning the recall task, the percentage of correctly recalled items was significantly lower for juxtapositions compared to replacements; results for fusions were in between the two. Recognition scores for juxtapositions and fusions were lower than those for replacements. These findings are discussed in the framework of visual metaphors literature, thus providing empirical support to visual metaphor processing.     

Spanish-speaking caregivers’ use of referential labels with toddlers is a better predictor of later vocabulary than their use of referential gestures

Variation in how frequently caregivers engage with their children is associated with variation in children's later language outcomes. One explanation for this link is that caregivers use both verbal behaviors, such as labels, and non-verbal behaviors, such as gestures, to help children establish reference to objects or events in the world. However, few studies have directly explored whether language outcomes are more strongly associated with referential behaviors that are expressed verbally, such as labels, or non-verbally, such as gestures, or whether both are equally predictive. Here, we observed caregivers from 42 Spanish-speaking families in the US engage with their 18-month-old children during 5-min lab-based, play sessions. Children's language processing speed and vocabulary size were assessed when children were 25 months. Bayesian model comparisons assessed the extent to which the frequencies of caregivers’ referential labels, referential gestures, or labels and gestures together, were more strongly associated with children's language outcomes than a model with caregiver total words, or overall talkativeness. The best-fitting models showed that children who heard more referential labels at 18 months were faster in language processing and had larger vocabularies at 25 months. Models including gestures, or labels and gestures together, showed weaker fits to the data. Caregivers’ total words predicted children's language processing speed, but predicted vocabulary size less well. These results suggest that the frequency with which caregivers of 18-month-old children use referential labels, more so than referential gestures, is a critical feature of caregiver verbal engagement that contributes to language processing development and vocabulary growth.

Research Highlights

• We examined the frequency of referential communicative behaviors, via labels and/or gestures, produced by caregivers during a 5-min play interaction with their 18-month-old children.
• We assessed predictive relations between labels, gestures, their combination, as well as total words spoken, and children's processing speed and vocabulary growth at 25 months.
• Bayesian model comparisons showed that caregivers’ referential labels at 18 months best predicted both 25-month vocabulary measures, although total words also predicted later processing speed.
• Frequent use of referential labels by caregivers, more so than referential gestures, is a critical feature of communicative behavior that supports children's later vocabulary learning.