Jonathan Jong

Registered Replication Report

Trying to remember something now typically improves your ability to remember it later. However, after watching a video of a simulated bank robbery, participants who verbally described the robber were 25% worse at identifying the robber in a lineup than were participants who instead listed U.S. states and capitals—this has been termed the “verbal overshadowing” effect (Schooler & Engstler-Schooler, 1990). More recent studies suggested that this effect might be substantially smaller than first reported. Given uncertainty about the effect size, the influence of this finding in the memory literature, and its practical importance for police procedures, we conducted two collections of preregistered direct replications (RRR1 and RRR2) that differed only in the order of the description task and a filler task. In RRR1, when the description task immediately followed the robbery, participants who provided a description were 4% less likely to select the robber than were those in the control condition. In RRR2, when the description was delayed by 20 min, they were 16% less likely to select the robber. These findings reveal a robust verbal overshadowing effect that is strongly influenced by the relative timing of the tasks. The discussion considers further implications of these replications for our understanding of verbal overshadowing.

Fear of Death and Supernatural Beliefs: Developing a New Supernatural Belief Scale to Test the Relationship

Fear of death features in both historical and contemporary theories of religion, but the relationship between death anxiety and religious belief is still ambiguous, largely due to the use of inappropriate or imprecise measures. The current studies therefore aimed to develop a valid, targeted measure of respondents’ tendency towards religious belief, the ‘Supernatural Belief Scale’ (SBS), and to use the SBS to examine the relation between death anxiety and religious belief. Results indicate that the SBS shows high reliability and convergent validity and that its relation to death anxiety depends on participants’ religious identification: ‘religious’ participants fear death less the stronger their religious beliefs, whereas ‘non–religious’ participants are more inclined towards religious belief the more they fear death. These studies contribute a new measurement tool for research on religious belief and provide a starting point for an experimental integration of discrepant research findings. Copyright

The God Instinct: The Psychology of Souls, Destiny and the Meaning of Life

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The Evolution of Extreme Cooperation Via Shared Dysphoric Experiences

Willingness to lay down one’s life for a group of non-kin, well documented historically and ethnographically, represents an evolutionary puzzle. Building on research in social psychology, we develop a mathematical model showing how conditioning cooperation on previous shared experience can allow individually costly pro-group behavior to evolve. The model generates a series of predictions that we then test empirically in a range of special sample populations (including military veterans, college fraternity/sorority members, football fans, martial arts practitioners, and twins). Our empirical results show that sharing painful experiences produces “identity fusion” – a visceral sense of oneness – which in turn can motivate self-sacrifice, including willingness to fight and die for the group. Practically, our account of how shared dysphoric experiences produce identity fusion helps us better understand such pressing social issues as suicide terrorism, holy wars, sectarian violence, gang-related violence, and other forms of intergroup conflict.

What Is the Molecular Signature of Mind–Body Interventions? A Systematic Review of Gene Expression Changes Induced by Meditation and Related Practices

There is considerable evidence for the effectiveness of mind–body interventions (MBIs) in improving mental and physical health, but the molecular mechanisms of these benefits remain poorly understood. One hypothesis is that MBIs reverse expression of genes involved in inflammatory reactions that are induced by stress. This systematic review was conducted to examine changes in gene expression that occur after MBIs and to explore how these molecular changes are related to health. We searched PubMed throughout September 2016 to look for studies that have used gene expression analysis in MBIs (i.e., mindfulness, yoga, Tai Chi, Qigong, relaxation response, and breath regulation). Due to the limited quantity of studies, we included both clinical and non-clinical samples with any type of research design. Eighteen relevant studies were retrieved and analyzed. Overall, the studies indicate that these practices are associated with a downregulation of nuclear factor kappa B pathway; this is the opposite of the effects of chronic stress on gene expression and suggests that MBI practices may lead to a reduced risk of inflammation-related diseases. However, it is unclear how the effects of MBIs compare to other healthy interventions such as exercise or nutrition due to the small number of available studies. More research is required to be able to understand the effects of MBIs at the molecular level.

Incipient Social Groups: An Analysis via In-Vivo Behavioral Tracking.

Social psychology is fundamentally the study of individuals in groups, yet there remain basic unanswered questions about group formation, structure, and change. We argue that the problem is methodological. Until recently, there was no way to track who was interacting with whom with anything approximating valid resolution and scale. In the current study we describe a new method that applies recent advances in image-based tracking to study incipient group formation and evolution with experimental precision and control. In this method, which we term “in vivo behavioral tracking,” we track individuals’ movements with a high definition video camera mounted atop a large field laboratory. We report results of an initial study that quantifies the composition, structure, and size of the incipient groups. We also apply in-vivo spatial tracking to study participants’ tendency to cooperate as a function of their embeddedness in those crowds. We find that participants form groups of seven on average, are more likely to approach others of similar attractiveness and (to a lesser extent) gender, and that participants’ gender and attractiveness are both associated with their proximity to the spatial center of groups (such that women and attractive individuals are more likely than men and unattractive individuals to end up in the center of their groups). Furthermore, participants’ proximity to others early in the study predicted the effort they exerted in a subsequent cooperative task, suggesting that submergence in a crowd may predict social loafing. We conclude that in vivo behavioral tracking is a uniquely powerful new tool for answering longstanding, fundamental questions about group dynamics.

Collective synchrony increases prosociality towards non-performers and outgroup members

Previous research has found that behavioural synchrony between people leads to greater prosocial tendencies towards co-performers. In this study, we investigated the scope of this prosocial effect: does it extend beyond the performance group to an extended ingroup (extended parochial prosociality) or even to other people in general (generalized prosociality)? Participants performed a simple rhythmic movement either in time (synchrony condition) or out of time (asynchrony condition) with each other. Before and during the rhythmic movement, participants were exposed to a prime that made salient an extended ingroup identity. After the task, half of the participants had the opportunity to help an extended ingroup member; the other half had the opportunity to help an outgroup member. We found a main effect of our synchrony manipulation across both help targets suggesting that the prosocial effects of synchrony extend to non-performers. Furthermore, there was a significantly higher proportion of participants willing to help an outgroup member after moving collectively in synchrony. This study shows that under certain intergroup contexts synchrony can lead to generalized prosociality with performers displaying greater prosociality even towards outgroup members.

The religious correlates of death anxiety: A systematic review and meta-analysis

ABSTRACT Various theories of religion hypothesize a connection between death anxiety and religiosity. In particular, Terror Management Theory’s worldview defence hypothesis predicts that death anxiety is lowest among very religious and irreligious individuals, and highest among uncertain individuals. Likewise, the supposition that death anxiety motivates religious belief, which in turn mitigates death anxiety, predicts that religiosity increases with death anxiety among non-believers, and that death anxiety decreases as religiosity increases among believers. In both cases, a curvilinear relationship – specifically, an inverted-U curve – is predicted. We extracted 202 effect sizes from 100 studies for an “omnibus” religiosity meta-analysis, and six meta-analyses that examine particular dimensions of religiosity. We found high heterogeneity and a weak negative association between death anxiety and religiosity. A closer examination revealed that 10 of the 11 studies that directly tested for curvilinearity provided some support for an inverted-U pattern. The curvilinearity hypothesis cannot be ruled out, but more evidence – particularly on non-religious individuals, and in non-Western, non-Abrahamic contexts – is needed.

Perceived Openness to Experience Accounts for Religious Homogamy

Two studies tested the hypothesis that religious homogamy—assortative mating on the basis of religion—can be partly explained by inferences about religious individuals’ openness to experience, rather than attitudes toward religion per se. Results of Study 1 indicated that non-religious participants perceived non-religious targets to be higher in openness and more appealing as romantic partners, with the first effect statistically accounting for the second. Study 2, which manipulated “religious” and “open” behaviors independently, showed that openness guided dating judgments for both non-religious and religious participants, albeit in opposite directions. Thus, regardless of their own religious beliefs, individuals appear to infer the same kind of behaviors from others’ religiosity, behaviors that are seen positively by religious individuals, but negatively by non-religious individuals. These inferences, in turn, partially explain all individuals’ preferences for partners of the same religious orientation.

Testing the causal relationship between religious belief and death anxiety

ABSTRACT Religion has long been speculated to function as a strategy to ameliorate our fear of death. Terror management theory provides two possible causal pathways through which religious beliefs can fulfil this function. According to the “worldview defence” account of terror management, worldviews reduce death anxiety by offering symbolic immortality: on this view, only people who accept the religious worldview in question should benefit from religious beliefs. Alternatively, religious worldviews also offer literal immortality, and may do so independently of individuals’ worldviews. Both strands of thought appear in the terror management theory literature. In this paper, we attempt to resolve this issue experimentally by manipulating religious belief and measuring explicit (Study 1) and implicit (Study 2) death anxiety. In Study 1, we found that the effect of religious belief on explicit death anxiety depends critically on participants’ own religious worldviews, such that believers and non-believers reported greater death anxiety when their worldview is threatened. In Study 2, however, we find that religious belief alleviates implicit death anxiety amongst both believers and non-believers. These findings suggest that religious beliefs can alleviate death anxiety at two different levels, by offering symbolic and literal immortality, respectively.