Certainty in holistic thinking and responses to contradiction: Dialectical proverbs, counter-attitudinal change and ambivalence.

The present research examined whether consideration of individuals' certainty in their holism can enhance the ability of this individual difference to predict how they respond to contradiction-relevant outcomes. Across four studies, participants first completed a standardized measure of holistic-analytic thinking. Then, they rated how certain they were in their responses to the holism scale or were experimentally induced to feel high or low certainty. Next, participants were exposed to dialectical proverbs (Study 1a and 1b), to a counter-attitudinal change induction (Study 2), or to a paradigm of attitudinal ambivalence (Study 3). Results revealed that participants with higher certainty in their holistic thinking exhibited higher preference for dialectical proverbs (Study 1a and 1b), changed their attitude less following a counter-attitudinal task (Study 2) and showed weaker correspondence between objective and subjective ambivalence (Study 3). Beyond examining new domains and discovering novel findings, the present work was designed to be the first to show moderation of previously identified effects in the domain of holistic thinking and responses to contradiction.

The association of the persecutory ideation questionnaire with clinically-relevant and other outcomes: the moderating role of confidence.

One of the most used self-administered instruments to assess persecutory delusions is the Persecutory Ideation Questionnaire (PIQ). Individual differences in PIQ scores are important because they predict the severity of symptoms associated with psychosis-related disorders. The current research demonstrates that PIQ is associated with two new outcomes: Satisfaction with life (Studies 1 and 2) and therapy length needed for hospital discharge (Study 2). Most relevant, we introduce meta-cognitive confidence in one's scale responses as a construct capable of improving the predictive validity of the PIQ. Across two studies, participants from the general population (Study 1) and from a clinical sample (Study 2) completed the PIQ and then reported the confidence in their responses. As expected, the PIQ was associated with satisfaction with life in both cases and duration of therapy required to receive hospital discharge for the clinical sample. Most importantly, confidence further moderated the extent to which the PIQ scores were linked with both outcomes, with greater consistency between the PIQ and the dependent measures obtained for those with higher confidence. Therefore, asking a single item about the confidence associated with responses to the PIQ enhances the association of PIQ scores and relevant consequences across domains.

Ambivalent attitudes promote support for extreme political actions.

Political extremism varies across people and contexts, but which beliefs will a person support through extreme actions? We propose that ambivalent attitudes, despite reducing normative political actions like voting, increase support for extreme political actions. We demonstrate this hypothesized reversal using dozens of measures across six studies (N = 13,055). The effect was robust to relevant covariates and numerous methodological variations and was magnified when people's attitudinal or ideological positions were more polarized. It appears to occur because being conflicted about political issues can feel psychologically uncomfortable, making extreme actions more appealing. Notably, this emerged when people thought ambivalence was justified, whereas leading them to consider ambivalence unjustified suppressed the effect, suggesting that ambivalent people are coping with but not necessarily trying to reduce their ambivalence. These results highlight the interplay of affective and cognitive influences in extreme behavior, showing that beliefs people feel justifiably conflicted about can promote extremism.

Assessment and Training of Perceptual-Motor Function: Performance of College Wrestlers Associated with History of Concussion.

Concussion may affect sport performance capabilities related to the visual perception of environmental events, rapid decision-making, and the generation of effective movement responses. Immersive virtual reality (VR) offers a means to quantify, and potentially enhance, the speed, accuracy, and consistency of responses generated by integrated neural processes. A cohort of 24 NCAA Division I male wrestlers completed VR assessments before and after a 3-week VR training program designed to improve their perceptual-motor performance. Prior to training, the intra-individual variability (IIV) among 40 successive task trials for perceptual latency (i.e., time elapsed between visual stimulus presentation and the initiation of movement response) demonstrated strong discrimination between 10 wrestlers who self-reported a history of concussion from 14 wrestlers who denied ever having sustained a concussion (Area Under Curve ≥ 0.750 for neck, arm, and step movements). Natural log transformation improved the distribution normality of the IIV values for both perceptual latency and response time (i.e., time elapsed between visual stimulus presentation and the completion of movement response). The repeated measures ANOVA results demonstrated statistically significant (p < 0.05) pre- and post-training differences between groups for the IIV in perceptual latency and the IIV in response time for neck, arm, and step movements. Five of the six IIV metrics demonstrated a statistically significant magnitude of change for both groups, with large effect sizes. We conclude that a VR assessment can detect impairments in perceptual-motor performance among college wrestlers with a history of concussion. Although significant post-training group differences were evident, VR training can yield significant performance improvements in both groups.

Order Matters When Using Two-Sided Messages to Influence Morally Based Attitudes.

Contrary to common beliefs, sometimes downplaying or even undermining one's case can enhance impact, especially for people with strong attitudes. Across four studies (N = 1,548), we demonstrate that the placement of the undermining information within a two-sided message matters. By manipulating message order within a two-sided message, Study 1 showed that the relative effectiveness of two- over one-sided messages for people with a moral attitude primarily occurred when the two-sided message acknowledged the recipient's side at the end rather than at the beginning of the message. Studies 2A/B showed that this effect was associated with positive source perceptions, such that placing the acknowledgment at the end results in people with a higher moral basis perceiving the source as more thoughtful and sincere. Furthermore, this inference process was more likely to occur when motivation to think was relatively high. Study 3, a preregistered experiment, replicated these findings using a different topic.

A synthesis of evidence for policy from behavioural science during COVID-19.

Scientific evidence regularly guides policy decisions1, with behavioural science increasingly part of this process2. In April 2020, an influential paper3 proposed 19 policy recommendations ('claims') detailing how evidence from behavioural science could contribute to efforts to reduce impacts and end the COVID-19 pandemic. Here we assess 747 pandemic-related research articles that empirically investigated those claims. We report the scale of evidence and whether evidence supports them to indicate applicability for policymaking. Two independent teams, involving 72 reviewers, found evidence for 18 of 19 claims, with both teams finding evidence supporting 16 (89%) of those 18 claims. The strongest evidence supported claims that anticipated culture, polarization and misinformation would be associated with policy effectiveness. Claims suggesting trusted leaders and positive social norms increased adherence to behavioural interventions also had strong empirical support, as did appealing to social consensus or bipartisan agreement. Targeted language in messaging yielded mixed effects and there were no effects for highlighting individual benefits or protecting others. No available evidence existed to assess any distinct differences in effects between using the terms 'physical distancing' and 'social distancing'. Analysis of 463 papers containing data showed generally large samples; 418 involved human participants with a mean of 16,848 (median of 1,699). That statistical power underscored improved suitability of behavioural science research for informing policy decisions. Furthermore, by implementing a standardized approach to evidence selection and synthesis, we amplify broader implications for advancing scientific evidence in policy formulation and prioritization.

The West of Scotland Cohort of Mitochondrial Individuals with the m.3243A>G Variant: Variations in Phenotypes and Predictors of Disease Severity.

BACKGROUND: The m.3243A>G variant is the commonest mitochondrial (mt) DNA pathogenic variant and a frequent cause of mitochondrial disease. Individuals present with a variety of clinical manifestations from diabetes to neurological events resembling strokes. Due to this, patients are commonly cared for by a multidisciplinary team. OBJECTIVES: This project aimed to identify patients with confirmed mt.3243A>G-related mitochondrial disease attending the Muscle Clinic at Queen Elizabeth University Hospital in Glasgow. We explored potential correlates between clinical phenotypes and mtDNA heteroplasmy levels, HbA1c levels, body mass index, and specific clinical manifestations. We investigated if there were discrepancies between non-neurological speciality labelling in clinical records and individuals' phenotypes. METHODS: Data were gathered from the West of Scotland electronic records. Phenotypes were ascertained by a clinician with expertise in mitochondrial disorders. Statistical analyses were applied to study relationships between tissue heteroplasmy, HbA1c and clinical phenotypes including body mass index (BMI). RESULTS: Forty-six individuals were identified from 31 unrelated pedigrees. Maternally inherited diabetes and deafness was the prominent syndromic phenotype (48%). A significant association was found between overall number of symptoms and bowel dysmotility (p < 0.01). HbA1c was investigated as a predictor of severity with potential association seen. Although used widely as a prognosticator, neither corrected blood nor urine mtDNA heteroplasmy levels were associated with increased number of symptoms. In 74.1% of records, syndromic phenotypes were incorrectly used by non-neurological specialities. CONCLUSIONS: This m.3243 A > G patient cohort present with marked clinical heterogeneity. Urine and blood heteroplasmy levels are not reliable predictors of disease severity. HbA1c may be a novel predictor of disease severity with further research required to investigate this association. We infer that prognosis may be worse in patients with low BMIs and in those with bowel dysmotility. These results underscore a multidisciplinary approach and highlight a problem with inaccurate use of the existing nomenclature.

Pitch as a Recipient, Channel, and Context Factor Affecting Thought Reliance and Persuasion.

Three experiments tested how low versus high pitch generated from sources beyond a message communicator can affect reliance on thoughts and influence recipients' attitudes. First, participants wrote positive or negative thoughts about an exam proposal (Experiments 1, 2) or their academic abilities (Experiment 3). Then, pitch from the message recipient (Experiment 1), channel (Experiment 2), or context (Experiment 3) was manipulated to be high or low. Experiment 1 showed that when participants vocally expressed their thoughts using low (vs. high) pitch, thoughts had a greater effect on attitudes toward exams. Experiment 2 revealed low (vs. high) pitch sounds from the keyboard participants used to write their thoughts produced the same effect on thought usage. Experiment 3 demonstrated that thoughts influenced attitudes more when listed while background music was low (vs. high) Pitch can influence attitudes through a meta-cognitive thought reliance process whether emerging from the recipient, channel, or context.

Glycogen storage disease type IV without detectable polyglucosan bodies: importance of broad gene panels.

Glycogen storage disease type IV (GSD IV) is caused by mutations in the glycogen branching enzyme 1 (GBE1) gene and is characterized by accumulation of polyglucosan bodies in liver, muscle and other tissues. We report three cases with neuromuscular forms of GSD IV, none of whom had polyglucosan bodies on muscle biopsy. The first case had no neonatal problems and presented with delayed walking. The other cases presented at birth: one with arthrogryposis, hypotonia, and respiratory distress, the other with talipes and feeding problems. All developed a similar pattern of axial weakness, proximal upper limb weakness and scapular winging, and much milder proximal lower limb weakness. Our cases expand the phenotypic spectrum of neuromuscular GSD IV, highlight that congenital myopathy and limb girdle weakness can be caused by mutations in GBE1, and emphasize that GSD IV should be considered even in the absence of characteristic polyglucosan bodies on muscle biopsy.

How research on persuasion can inform dual-process models of judgment.

De Neys makes some useful points regarding dual-process models, but his critique ignores highly relevant theories of judgment from the persuasion literature. These persuasion models predate and often circumvent many of the criticisms he makes of the dual-process approaches he covers. Furthermore, the persuasion models anticipated some of the correctives to dual-process models that he proposes.

Understanding the Magnitude of Hypocrisy in Moral Contradictions: The Role of Surprise at Violating Strong Attitudes.

Although two people could both enact similar forms of hypocrisy, one person might be judged as more hypocritical than the other. The present research advances a novel, theoretical explanation for a paradigmatic instance of this: the increased hypocrisy ascribed to contradicting a morally (vs. nonmorally) based attitude. In contrast to prior explanations, the present research shows that people infer targets holding morally (vs. nonmorally) based attitudes are more difficult to change. Consequently, when people are hypocritical on these stances, it elicits greater surprise, which amplifies the perceived hypocrisy. Through both statistical mediation and experimental moderation, we provide evidence for this process and show how our explanation generalizes to understanding heightened hypocrisy in other contexts, too (i.e., violating nonmoral attitudes held with certainty vs. uncertainty). Altogether, we provide an integrative, theoretical lens for predicting when moral and nonmoral acts of hypocrisy will be perceived as particularly hypocritical.

Attitude Strength: What's New?

Attitude strength (what makes attitudes durable and impactful) has become an important topic in the domain of social influence. We review three areas in which the traditional view of attitude strength has been modified or updated since the publication of Petty and Krosnick's 1995 edited book on the topic. First, although it was widely assumed that there were different categories of strength variables (i.e., operative versus meta-cognitive), it may now be better to recognize that each strength property can be measured both structurally and subjectively and that each measure is useful. Second, although scholars assumed that virtually all persuasion techniques would work better on weaker than stronger attitudes, recent research suggests that some techniques might actually work better on stronger than weaker attitudes. Third, although stronger attitudes often guide behavior better than weaker ones, when strength is challenged or weak attitudes are threatening, people can be motivated to act to demonstrate or restore certainty. This can result in weaker attitudes leading to more extreme behavior.

Self-Validation Theory: Confidence can Increase but also Decrease Performance in Applied Settings.

This article presents self-validation theory (SVT) as a framework predicting when mental contents guide performance. First, we illustrate how confidence can validate people's thoughts (goals, beliefs, identity) increasing and decreasing performance, depending on what thoughts are validated. This first section reviews examples of validation processes in guiding intellectual performance in academic settings, sport performance in athletes, as well as performance on diverse social tasks. SVT specifies moderating conditions for validation processes to operate. Therefore, in the second section of this review, we identify unique and testable moderators for metacognitive processes demonstrating when and for whom validation processes are more likely to occur. A third section calls for future research identifying new validating variables (e.g., preparation, courage) capable of increasing usage of unexplored thoughts relevant to performance (e.g., expectations). This final section examines new domains for validation (e.g., group performance, cheating in performance), discusses to what extent people can use self-validation strategies deliberatively to improve their performance and addresses when performance can be impaired by invalidation (e.g., due to identity threat).

Attitude Strength: What’s New?

Attitude strength (what makes attitudes durable and impactful) has become an important topic in the domain of social influence. We review three areas in which the traditional view of attitude strength has been modified or updated since the publication of Petty and Krosnick’s 1995 edited book on the topic. First, although it was widely assumed that there were different categories of strength variables (i.e., operative versus meta-cognitive), it may now be better to recognize that each strength property can be measured both structurally and subjectively and that each measure is useful. Second, although scholars assumed that virtually all persuasion techniques would work better on weaker than stronger attitudes, recent research suggests that some techniques might actually work better on stronger than weaker attitudes. Third, although stronger attitudes often guide behavior better than weaker ones, when strength is challenged or weak attitudes are threatening, people can be motivated to act to demonstrate or restore certainty. This can result in weaker attitudes leading to more extreme behavior. (AU)

Self-Validation Theory: Confidence can Increase but also Decrease Performance in Applied Settings

This article presents self-validation theory (SVT) as a framework predicting when mental contents guide performance. First, we illustrate how confidence can validate people’s thoughts (goals, beliefs, identity) increasing and decreasing performance, depending on what thoughts are validated. This first section reviews examples of validation processes in guiding intellectual performance in academic settings, sport performance in athletes, as well as performance on diverse social tasks. SVT specifies moderating conditions for validation processes to operate. Therefore, in the second section of this review, we identify unique and testable moderators for metacognitive processes demonstrating when and for whom validation processes are more likely to occur. A third section calls for future research identifying new validating variables (e.g., preparation, courage) capable of increasing usage of unexplored thoughts relevant to performance (e.g., expectations). This final section examines new domains for validation (e.g., group performance, cheating in performance), discusses to what extent people can use self-validation strategies deliberatively to improve their performance and addresses when performance can be impaired by invalidation (e.g., due to identity threat). (AU)

Strengthening the Link between Vaccine Predispositions and Vaccine Advocacy through Certainty.

BACKGROUND: Instruments designed to assess individual differences in predispositions towards vaccination are useful in predicting vaccination-related outcomes. Despite their importance, there is relatively little evidence regarding the conditions under which these instruments are more predictive. The current research was designed to improve the ability of these kinds of instruments to predict vaccination advocacy by considering the certainty associated with the responses to vaccination scales. METHOD: Across two studies, participants completed the Beliefs about Medicines Questionnaire BMQ scale (Study 1) or the Vaccination Attitudes Examination (VAX) scale (Study 2). The certainty participants had in their responses to each scale was either measured (Study 1) or manipulated (Study 2). Intentions to advocate in favor of vaccination served as the criterion measure in both studies. RESULTS: As expected, the scales significantly predicted vaccination advocacy, contributing to enhancing the predictive validity of the instruments used in the studies. Most relevant, certainty moderated the extent to which these scales predicted vaccination advocacy, with greater consistency between the initial scores and the subsequent advocacy willingness obtained for those with higher certainty. CONCLUSIONS: Certainty can be useful to predict when the relationship between vaccination-related cognitions (i.e., beliefs or attitudes) and advocacy willingness is likely to be stronger.

Two-Sided Messages Promote Openness for a Variety of Deeply Entrenched Attitudes.

Prior research showed that people holding attitudes on relatively moral topics became more open to two- rather than one-sided messages as the moral basis of their attitudes increased. Across three studies (N = 963), we extend this finding to relatively non-moral topics by demonstrating that two-sided messages can encourage people with strong attitudes indexed by various non-moral attitude strength measures to be more open to contrary positions. Study 1 demonstrated this for four indicators of attitude strength (e.g., certainty). As the strength of one's attitude increased, two-sided messages increased in relative effectiveness over one-sided communication. This was mediated by perceived appreciation for the speaker acknowledging one's view. Study 2 replicated this finding in a preregistered experiment. Study 3 conceptually replicated and extended it to people holding attitudes based on their political identity. Finally, evidence was obtained supporting perceived appreciation (rather than source evaluation) as the key driver of this interactive effect.

Why are people antiscience, and what can we do about it?

From vaccination refusal to climate change denial, antiscience views are threatening humanity. When different individuals are provided with the same piece of scientific evidence, why do some accept whereas others dismiss it? Building on various emerging data and models that have explored the psychology of being antiscience, we specify four core bases of key principles driving antiscience attitudes. These principles are grounded in decades of research on attitudes, persuasion, social influence, social identity, and information processing. They apply across diverse domains of antiscience phenomena. Specifically, antiscience attitudes are more likely to emerge when a scientific message comes from sources perceived as lacking credibility; when the recipients embrace the social membership or identity of groups with antiscience attitudes; when the scientific message itself contradicts what recipients consider true, favorable, valuable, or moral; or when there is a mismatch between the delivery of the scientific message and the epistemic style of the recipient. Politics triggers or amplifies many principles across all four bases, making it a particularly potent force in antiscience attitudes. Guided by the key principles, we describe evidence-based counteractive strategies for increasing public acceptance of science.

Polarization of Attitudes as a Function of Mortality Salience: A Meta-Cognitive Analysis.

BACKGROUND: The present study analyzes how attitudes can polarize after reminders of death in the context of persuasion, and proposes that a meta-cognitive process (i.e., self-validation) can serve as a compensatory coping mechanism to deal with mortality salience. METHOD: Participants were first asked to read either a strong or a weak resume of a job applicant. Next, they listed their initial thoughts about that applicant. Then, they were asked to think about of their own death (i.e., mortality salience condition) versus being asked to think about of being cold (i.e., control condition). Finally, participants reported the confidence in their thoughts, as well as their attitudes towards the applicant. RESULTS: Participants who were assigned to the mortality salience (vs. control) condition showed greater impact of their previously generated thoughts on their subsequent attitudes. Additionally, as hypothesized, this effect of attitude polarization was mediated by changes in thought confidence. CONCLUSIONS: Attitudes unrelated to mortality can be polarized by reminders of death and this effect can operate through a meta-cognitive process of thought validation. Implications for persuasion, self-validation, and beyond are discussed.

Two-Sided Messages Promote Openness for Morally Based Attitudes.

This research demonstrates that two- versus one-sided counterattitudinal messages can encourage people with a strong moral basis for their attitudes to be more open to contrary positions. Studies 1A/B demonstrated that the interaction between moral basis and message sidedness was present not just for a controversial issue with balanced views in society but also for a topic with a majority opinion. In Study 2, the relative effectiveness of two- over one-sided messages for people with a moral attitude basis was shown to occur only when the two-sided message respectfully acknowledged the recipient's side. In Study 3, the effect was replicated in a preregistered experiment. Furthermore, moral bases provided unique predictive power beyond alternative attitude strength indicators. Across all studies, perceived appreciation of the speaker acknowledging the recipient's view mediated the impact of the independent variables on openness.