An Optimal Policy Model for Concurrent Uncertainty Estimation During Decision Making

We often postpone or even avoid making decisions when we feel uncertain. Uncertainty estimation is not an afterthought of decision making but a dynamic process that accompanies decision making in parallel and affects decision making. To study concurrent uncertainty estimation during decision making, we adapted the classic random-dots motion direction discrimination task to allow a reaction-time measure of uncertainty responses. Subjects were asked to judge whether a patch of random dots was moving left or right. In addition, they could seek assistance by choosing to look at a second stimulus that had the same direction but high coherence any time during the task. The task allows us to measure the reaction time of both the perceptual decisions and the uncertainty responses. The subjects were more likely to choose the uncertainty response when the motion coherence was low, while their reaction times of the uncertainty responses showed individual variations. To account for the subjects' behavior, we created an optimal policy decision model in which decisions are based on the value functions computed from the accumulated evidence using a drift-diffusion process. Model simulations captured key features of the subjects' choices, reaction times, and proportions of uncertainty responses. Varying model parameters explained individual variations in the subjects and the correlations between decision accuracy, proportions of uncertainty responses, and reaction times at the individual level. Our model links perceptual decisions and value-based decisions and indicates that concurrent uncertainty estimation may be based on comparisons between values of uncertainty responses and perceptual decisions, both of which may be derived from the same evidence accumulation process during decision making. It provides a theoretical framework for future investigations, including the ones that aim at the underlying neural mechanism.

In Masks we Trust: Explicit and Implicit Reactions to Masked Faces Vary by Voting Intention

The COVID-19 pandemic has caused controversy over new norms of mask-wearing in public places. An online experiment previously showed that people from several Spanish-speaking countries perceived faces wearing medical-style masks as more trustworthy, socially desirable, and likely to be ill, compared to control faces without a mask. We replicated and extended these methods with 1241 English-speaking participants from the UK and USA, adding questions on political orientation and voting intention, and including the online-VAAST task to test the effects of masks on an implicit reaction-time measure. The positive effects of masks on trustworthiness and social desirability were replicated, but the negative effect of masks on perceptions of healthiness was reversed. Participants were also quicker to approach masked faces. Conservative voters’ explicit and implicit reactions to masked faces were less favorable than those of liberals, demonstrating that masks are viewed positively by many but continue to be politically controversial.

Mediating effect of cognitive load in song learning with visually presented lyrics

The purpose of this study was to ascertain whether seeing the lyrics while learning a difficult song aurally induces less cognitive load in learners compared to not seeing the lyrics, leading to better recall accuracy of the learned song. Cognitive load was assessed through a reaction time measure based on a dual-task paradigm. Recall accuracy of the learned song was measured regarding lyrics, pitches, and rhythm. Thirty-six non-music majors individually learned two songs through prerecorded aural instruction; for one song they saw the lyrics and for the other song they did not see the lyrics. The presentation order of instructional condition and song were counterbalanced. Results showed instructional condition affected cognitive load but not recall accuracy. A path analysis revealed a mediating effect of cognitive load regarding lyrics and rhythm, suggesting seeing the lyrics indirectly increases recall accuracy of lyrics and rhythm through its positive effect on cognitive load. Given limited instructional time, several strategies should be considered to prevent learners from experiencing cognitive overload while learning a difficult song aurally. Showing the lyrics of the difficult song could be one strategy for that purpose, at least for young adults with low levels of musical expertise.

Embodying the Police: The Effects of Enclothed Cognition on Shooting Decisions

The theory of enclothed cognition proposes that wearing physical articles of clothing can trigger psychological processes and behavioral tendencies connected to their symbolic meaning. Furthermore, past research has found that increases in power are associated with greater approach orientation and action tendencies. In this study, we integrate these two literatures to examine how embodying the role of a police officer through wearing a uniform would affect responses on a reaction-time measure known as the Shooter Task. This first-person video game simulation requires participants to shoot or not shoot targets holding guns or objects. The task typically elicits a stereotypical pattern of responses, such that unarmed Black versus White targets are more likely to be mistakenly shot and armed Black versus White targets are more likely to be correctly shot. Based on the relationship between power and action, we hypothesized that participants who were randomly assigned to wear a police uniform would show more shooting errors, particularly false alarms, than control participants. Consistent with our hypotheses, participants in uniform were more likely to shoot unarmed targets, regardless of their race. Moreover, this pattern was partially moderated by attitudes about the police and their abuse of power. Specifically, uniformed participants who justified police use of power were more likely to shoot innocent targets than those who were wary of it. We discuss implications for police perceptions and the theory of enclothed cognition more broadly.

What are reaction time indices of automatic imitation measuring?

Humans unintentionally copy other people’s gestures, postures and speech patterns. This behaviour has been termed ‘automatic imitation’, and is thought to play a crucial role in the development of social relationships by building affiliation and rapport between interaction partners. The wide-ranging impact imitation may play in social life has stimulated considerable interest among psychologists and neuroscientists, but measuring imitative behaviour with high fidelity poses a problem due to the inherent difficulty of measuring live social interactions. To study imitative processes in a more controlled manner, a reaction time measure has been developed that is argued to index processes associated with imitation. The current paper critically evaluates reaction time measures of automatic imitation and demonstrates that it is currently unclear what reaction time indices measure, due to a lack of research assessing task validity. A consequence of low validity is that a sufficiently solid foundation has not been formed for future research to build upon in a progressive manner. Based on this assessment of the literature, three suggestions are made for future research. First, studies that assess the validity of the paradigm as a measure of automatic imitation are required. Second, theories of imitation need to be developed that move beyond neat divisions between domain-specific and domain-general systems. Third, a greater focus needs to be placed on methodological rigour to enable a cumulative science to develop. In sum, by providing a critical review of the current literature, as well as suggesting new directions for the development of research questions, theories and methods, this paper aims to stimulate discussion regarding optimal approaches to studying automatic imitation. Moreover, the analysis and recommendations presented here generalise to other domains of social cognition, such as gaze perception and perspective taking, which also rely on similar reaction time paradigms.

The Role of Memory Associations in Excessive and Problem Gambling

Outcome expectancies (OEs), or beliefs about the consequences of engaging in a particular behaviour, are important predictors of addictive behaviours. In Study 1 of the present work, we assessed whether memory associations between gambling and positive outcomes are related to excessive and problem gambling. The Gambling Behaviour Outcome Association Task (G-BOAT) was administered to a sample of 96 community-recruited gamblers. On the G-BOAT, participants responded to a list of positive outcome phrases with the first two behaviours that came to mind. Those with more problematic gambling (as measured on the Problem Gambling Severity Index) and greater gambling involvement (as measured by time and money spent gambling on the Gambling Timeline Followback) responded to positive outcome phrases on the G-BOAT with more gambling-related responses. In Study 2, we administered G-BOAT to a community-recruited sample of 61 gamblers, who also completed a computerized reaction time measure of implicit gambling OEs, an explicit self-report measure of gambling OEs, and a measure of gambling frequency. Consistent with Strack and Deutch’s (2004) reflective-impulsive model, memory associations on the G-BOAT and positive OE scores on the explicit Gambling Expectancy Questionnaire each predicted unique variance in frequency of gambling behaviour. These studies are among the first to demonstrate the important role of memory associations in excessive and problem gambling.Les résultats escomptés (RE), c’est-à-dire la croyance dans les conséquences d’un comportement donné, constituent une importante variable explicative des comportements liés à la dépendance. L’étude 1 a évalué si des associations mémorielles entre le jeu et des résultats positifs sont reliées aux problèmes de jeu compulsif. La tâche d’association de résultats découlant de comportements liés au jeu (Gambling Behaviour Outcome Association Task [G-BOAT]) a été administrée à un échantillon de 96 joueurs recrutés au sein de la collectivité. Dans le cadre de la G-BOAT, une liste de locutions exprimant un résultat positif était présentée aux participants et ceux-ci devaient répondre en indiquant pour chacune des locutions les deux premiers comportements qui leur venaient à l’esprit. Ceux qui présentaient un problème de jeu plus grave (selon l’indice de jeu problématique) et qui s’adonnaient davantage au jeu (selon le suivi du temps passé à jouer et de l’argent dépensé effectué à l’aide de l’outil Gambling Timeline Followback) ont donné des réponses liées au jeu plus fréquemment que les autres. Dans le cadre de l’étude 2, la G-BOAT a été administrée à un échantillon de 61 joueurs recrutés au sein de la collectivité. Ceux-ci ont en outre fait l’objet d’une mesure informatisée du temps de réponse (TR) pour les RE liés au jeu implicites, d’une autoévaluation des RE liés au jeu explicites et d’une mesure de la fréquence des comportements liés au jeu. Conformément au modèle de réflexion et impulsion de Strack et Deutch (2004), les associations mémorielles obtenues dans le cadre de la G-BOAT et les résultats relatifs aux RE positifs obtenus dans le cadre du questionnaire sur les attentes quant au jeu ont dans les deux cas permis de prévoir une variance unique concernant la fréquence des comportements liés au jeu. Ces études fournissent ainsi un premier ensemble de données probantes relativement à l’importance des associations mémorielles dans l’apparition des problèmes de jeu compulsif.

The Role of Memory Associations in Excessive and Problem Gambling

Outcome expectancies (OEs), or beliefs about the consequences of engaging in a particular behaviour, are important predictors of addictive behaviours. In Study 1 of the present work, we assessed whether memory associations between gambling and positive outcomes are related to excessive and problem gambling. The Gambling Behaviour Outcome Association Task (G-BOAT) was administered to a sample of 96 community-recruited gamblers. On the G-BOAT, participants responded to a list of positive outcome phrases with the first two behaviours that came to mind. Those with more problematic gambling (as measured on the Problem Gambling Severity Index) and greater gambling involvement (as measured by time and money spent gambling on the Gambling Timeline Followback) responded to positive outcome phrases on the G-BOAT with more gambling-related responses. In Study 2, we administered G-BOAT to a community-recruited sample of 61 gamblers, who also completed a computerized reaction time measure of implicit gambling OEs, an explicit self-report measure of gambling OEs, and a measure of gambling frequency. Consistent with Strack and Deutch’s (2004) reflective-impulsive model, memory associations on the G-BOAT and positive OE scores on the explicit Gambling Expectancy Questionnaire each predicted unique variance in frequency of gambling behaviour. These studies are among the first to demonstrate the important role of memory associations in excessive and problem gambling.Les résultats escomptés (RE), c’est-à-dire la croyance dans les conséquences d’un comportement donné, constituent une importante variable explicative des comportements liés à la dépendance. L’étude 1 a évalué si des associations mémorielles entre le jeu et des résultats positifs sont reliées aux problèmes de jeu compulsif. La tâche d’association de résultats découlant de comportements liés au jeu (Gambling Behaviour Outcome Association Task [G-BOAT]) a été administrée à un échantillon de 96 joueurs recrutés au sein de la collectivité. Dans le cadre de la G-BOAT, une liste de locutions exprimant un résultat positif était présentée aux participants et ceux-ci devaient répondre en indiquant pour chacune des locutions les deux premiers comportements qui leur venaient à l’esprit. Ceux qui présentaient un problème de jeu plus grave (selon l’indice de jeu problématique) et qui s’adonnaient davantage au jeu (selon le suivi du temps passé à jouer et de l’argent dépensé effectué à l’aide de l’outil Gambling Timeline Followback) ont donné des réponses liées au jeu plus fréquemment que les autres. Dans le cadre de l’étude 2, la G-BOAT a été administrée à un échantillon de 61 joueurs recrutés au sein de la collectivité. Ceux-ci ont en outre fait l’objet d’une mesure informatisée du temps de réponse (TR) pour les RE liés au jeu implicites, d’une autoévaluation des RE liés au jeu explicites et d’une mesure de la fréquence des comportements liés au jeu. Conformément au modèle de réflexion et impulsion de Strack et Deutch (2004), les associations mémorielles obtenues dans le cadre de la G-BOAT et les résultats relatifs aux RE positifs obtenus dans le cadre du questionnaire sur les attentes quant au jeu ont dans les deux cas permis de prévoir une variance unique concernant la fréquence des comportements liés au jeu. Ces études fournissent ainsi un premier ensemble de données probantes relativement à l’importance des associations mémorielles dans l’apparition des problèmes de jeu compulsif.

Unconscious motivation. Part I: Implicit attitudes toward L2 speakers

This paper reports the first investigation in the second language acquisition field assessing learners’ implicit attitudes using the Implicit Association Test, a computerized reaction-time measure. Examination of the explicit and implicit attitudes of Arab learners of English (N = 365) showed that, particularly for males, implicit attitudes toward L2 speakers are associated with self-reported openness to the L2 group and with strength of correlations among attitudinal and motivational variables. Implicit attitudes also moderated important paths in the L2 Motivational Self System. The paper concludes that implicit attitudes seem to be a meaningful individual difference variable, adding a new dimension to our understanding of language motivation.

Whose family fits? Categorization and evaluation of same-sex and cross-race-parent families

As family structures diversify, attitudes towards “nontraditional” families (e.g., same-sex-parent and cross-race families) appear to be becoming more favorable. Despite more favorable attitudes, we propose that explicitly and implicitly people view nontraditional families as less family-like than traditional (i.e., heterosexual, same-race) families. We also propose that people will hold the behavior of nontraditional (vs. traditional) families to higher standards. In Study 1, participants explicitly rated nontraditional (vs. traditional) family photos as less family-like and as less loving. In Study 2, using a reaction-time measure, participants took longer to correctly categorize nontraditional (vs. traditional) families into the family category, suggesting that at an implicit level people have greater difficulty recognizing nontraditional families as “family.” In Studies 3 and 4, ambiguous (i.e., positive and negative) behavior licensed more harsh evaluations of a nontraditional family—but did not affect evaluations of a traditional family—relative to learning only positive family behavior. Despite survey data that suggest that people’s views of nontraditional families are becoming more favorable, our evidence indicates that people nonetheless harbor prejudice against certain family structures. Beyond documenting two biases against nontraditional families, this work highlights the need for prejudice researchers to examine meaningful levels of social identity, such as family units, that are intermediate between individuals and broad social classes.